2019年第1期Ei收录情况
发布人:liux 发布时间:5/10/2019 2:32:02 PM  浏览次数:1298次
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  经检索,本刊2019年第1期所发文章均被Ei收录,具体如下:

1.
Title:Recent Progress in Synthesis of Insensitive Energetic Compounds
Accession number: 20191206658154
Authors:Huo, Huan1 ; Xuan, Chun-Lei1 ; Bi, Fu-Qiang1; Zhang, Jia-Rong1; Zhou, Cheng1; Wang, Bo-Zhou1
Author affiliation:1 Xi'an Modern Chemistry Research Institute, Xi'an; 710065, China
Corresponding author:Xuan, Chun-Lei (xuanchunlei_2000@163.com)
Source title:Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Abbreviated source title:Huozhayao Xuebao
Volume:42
Issue:1
Issue date:February 1, 2019
Publication year:2019
Pages:6-16
Language:Chinese
ISSN:10077812
CODEN:HUXUFP
Document type:Journal article (JA)
Publisher:China Ordnance Industry Corporation
Abstract:The research progresses in syntheses and properties (melting point, thermal decomposition temperature, density, enthalpy of formation, impact sensitivity, detonation velocity and detonation pressure, etc.) of 26 kinds of insensitive energetic compounds with excellent comprehensive properties reported in recent 10 years at home and abroad were reviewed, including 6 kinds of insensitive energetic compounds with intramolecular hydrogen bond, such as FOX-7, LLM-105, etc., 3 kinds of insensitive energetic compounds with intramolecular internal salt, such as TACOT,TNPCOT, etc.,4 kinds of insensitive energetic compounds with aza-aromatic ring, such as MTNI, DAAF, etc., and 13 kinds of insensitive energetic compounds with energetic ionic salts, such as HATO, FOX-12, etc. It is pointed out that insensitive energetic ionic salts are a kind of insensitive energetic compounds that having broad application aspects. The key development direction of insensitive energetic compounds are to strengthen the studies on molecular structure- properties relationship and basic application property, and to develop the convenient, efficient and green synthesis methods. 49 references were attached.
2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references:49
Main heading:Hydrogen bonds
Controlled terms:Decomposition - Detonation - Salts
Uncontrolled terms:Energetic compounds - FOX-12 - FOX-7 - HATO - LLM-105 - Organic Chemistry
Classification code:801.4Physical Chemistry - 802.2Chemical Reactions
Numerical data indexing:Age 1.00e+01yr
DOI:10.14077/j.issn.1007-7812.2019.01.002
Database:Compendex Compilation and indexing terms, 2019 Elsevier Inc.


2.
Title:Experimental Research of the Impact Initiation of Shelled Pressed PBX Explosives by Shaped Charge Jet
Accession number:20191206658163
Authors:Song, Yi-Dan1, 2 ; Chen, Ke-Quan1, 2; Lu, Zhong-Hua1, 2; Chen, Xiang1, 2; Chen, Hong-Xia1, 2; Li, Xing-Long1, 2
Author affiliation:1 Institute of Chemical Materials of CAEP, Mianyang; Sichuan; 621900, China
2 Safely Ammunition Center of CAEP, Mianyang; Sichuan; 621900, China
Source title:Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Abbreviated source title:Huozhayao Xuebao
Volume:42
Issue:1
Issue date:February 1, 2019
Publication year:2019
Pages:69-72 and 78
Language:Chinese
ISSN:10077812
CODEN:HUXUFP
Document type:Journal article (JA)
Publisher:China Ordnance Industry Corporation
Abstract:To analyze the impact initiation sensitivity of two kinds of typical shelled pressed polymer boned explosives (PBX) caused by shaped charge jet, a Ф80mm armor-piercing projectile was used as the standard jet source. Under the conditions of explosive height of 150mm, the sensitivity tests of impact initiation of PBX-1 and PBX-2 explosives shielded by 45# steel cover plate with different thicknesses caused by shaped charge jet were performed. The thickness of cover plate was selected by Langlie's method. The critical diaphragm thickness of two kinds of typical pressed PBX explosives initiated by shaped charge jet was obtained. Results show that under the critical initiation, the thickness of shield plates covering PBX-1 explosive is 35-40mm and that of PBX-2 explosive is 140-150mm, that is to say, the critical thickness of PBX-1 explosive is 73.3% less than that of PBX-2 explosive. The initiation energy of jet required by PBX-1 explosive is 185mm3/μs2, much higher than that of PBX-2 explosive, so the jet safety of PBX-1 explosive is obviously better than that of PBX-2 explosive.
?2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references:14
Main heading:Initiators (explosives)
Controlled terms:Shaped charges
Uncontrolled terms:Critical thickness - Explosion mechanics - Impact initiation - PBX explosive - Shaped-charge jets
Classification code:404.1Military Engineering
Numerical data indexing:Percentage 7.33e+01%, Size 1.40e-01m to 1.50e-01m, Size 1.50e-01m, Size 3.50e-02m to 4.00e-02m
DOI:10.14077/j.issn.1007-7812.2019.01.011
Database:Compendex Compilation and indexing terms, 2019 Elsevier Inc.


3.
Title:Molecule Design and Theoretical Calculation of Performance of Triazine Ring Type High-energy Gas-producing Derivatives
Accession number:20191206658158
Authors:Duan, Ying-Jie1 ; Wang, Jian-Hua1 ; Jing, Su-Ming1; Wang, Guo-Dong1, 2; Wu, Qiu-Hong1
Author affiliation:1 School of Environment and Safety Engineering, North University of China, Taiyuan; 030051, China
2 Army Engineering University, Shijiazhuang; 050003, China
Corresponding author:Wang, Jian-Hua (wjh522996@163.com)
Source title:Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Abbreviated source title:Huozhayao Xuebao
Volume:42
Issue:1
Issue date:February 1, 2019
Publication year:2019
Pages:41-47
Language:Chinese
ISSN:10077812
CODEN:HUXUFP
Document type:Journal article (JA)
Publisher:China Ordnance Industry Corporation
Abstract:Taking the new high-energy gas-producing derivatives as targets, fifteen kinds of energetic compounds with triazine ring were designed using triazine ring as basic structural unit, and introducing the nitro, amino and azide groups as energetic ones. The geometrical structure, density,

enthalpy of formation, detonation parameters, gas production amount per unit mass and impact sensitivity of triazine ring-containing energetic compounds were calculated by density functional theory. The results show that the density of 15 kinds of compounds is between 1.382-1.786g/cm3,the detonation velocity range is 5.320-8.901km/s, the detonation pressure distribution range is 16.159-35.088GPa, and the gas production amount distribution per unit mass is 647.8- 932.9cm3/g. The contribution of different energetic groups to gas production amount is as follows: -NH2>-N3>-NO2, but -NO2 contributes more to energy than -N3 and -NH2. According to the theoretical calculation results, the potential high-energy gas-producing triazine ring derivative was selected as 2-amino 4,6-dinitro-1,3,5-triazine with the enthalpy of formation of 586.256kJ/mol, the detonation velocity of 8.43km/s and the detonation pressure of 30.958GPa, the gas production amount of 843.01cm3/g, and the characteristic drop height of 27cm.
2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references:16
Main heading:Density functional theory
Controlled terms:Design for testability - Detonation - Enthalpy - Gas generators - Gases - Nitrogen oxides Uncontrolled terms:1 ,3 ,5-triazines - Detonation parameter - Energetic compounds - Enthalpy of formation - Geometrical structure - Impact sensitivities - Organic Chemistry - Theoretical calculations Classification code:522Gas Fuels - 641.1Thermodynamics - 804.2Inorganic Compounds - 922.1Probability Theory Numerical data indexing:Mass_Density 1.38e+03kg/m3 to 1.79e+03kg/m3, Pressure 1.62e+10Pa to 3.51e+10Pa, Pressure 3.10e+10Pa, Size 2.70e-01m, Specific_Volume 6.48e-01m3/kg to 9.33e-01m3/kg, Specific_Volume 8.43e-01m3/kg, Velocity 5.32e+03m/s to 8.90e+03m/s, Velocity 8.43e+03m/s
DOI:10.14077/j.issn.1007-7812.2019.01.006
Database:Compendex Compilation and indexing terms, 2019 Elsevier Inc.


4.
Title:Determination of the Solubility of Waste or Obsolete Desensitized RDX in Cyclohexanone-Acetone Solvent
Accession number:20191206658170
Authors:Chen, Si-Yang1 ; Zhang, Yao-Xuan2 ; Ding, Yu-Kui1; Chen, Song2; Lian, Peng2; Cao, Ling-Yu1
Author affiliation:1 Army Engineering University Shijiazhuang Campus, Shijiazhuang; 050003, China
2 Xi'an Modern Chemistry Research Institute, Xi'an; 710065, China
Corresponding author:Zhang, Yao-Xuan (yao85225zhang@126.com)
Source title:Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Abbreviated source title:Huozhayao Xuebao
Volume:42
Issue:1
Issue date:February 1, 2019
Publication year:2019
Pages:103-106
Language:Chinese
ISSN:10077812
CODEN:HUXUFP
Document type:Journal article (JA)
Publisher:China Ordnance Industry Corporation
Abstract:Desensitized RDX in the waste or obsolete A-IX-II explosive was extracted and separated using acetone, and the solubility of the desensitized RDX in cyclohexanone, acetone and cyclohexanone-acetone mixed solvent with four different volume ratios (1: 1, 1: 2, 1: 3, 1: 4) in the temperature range of 283-323 K was measured by the static equilibrium method. Using Apelblat model, the solubility data of desensitized RDX in cyclohexanone and acetone were correlated with temperature and a solubility-temperature model was established. The solubility data of desensitized RDX in cyclohexanone-acetone mixed solvents with four kinds of different volume ratios were correlated with temperature by polynomial empirical model, and their solubility-temperature models were also established. The results show that the mixed solvent has the best solubility for desensitized RDX when the volume ratio of cyclohexanone and acetone is 1: 1. The correlation coefficients of solubility of desensitized RDX in cyclohexanone and acetone with temperature are higher than 0.97, and the correlation coefficients of solubility of desensitized RDX in cyclohexanone-acetone mixed solvents with four kinds of different volume ratios with temperature are higher than 0.99.
2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references:10
Main heading:Solubility
Controlled terms:Acetone - Chemical analysis - Explosives - Solvent extraction - Solvents
Uncontrolled terms:A-IX-II - Correlation coefficient - Cyclohexanones - Desensitized RDX - Solvent extraction methods - Static equilibrium - Temperature modeling - Temperature models
Classification code:801.4Physical Chemistry - 802.3Chemical Operations - 803Chemical Agents and Basic Industrial Chemicals - 804.1Organic Compounds
Numerical data indexing:Temperature 2.83e+02K to 3.23e+02K
DOI:10.14077/j.issn.1007-7812.2019.01.018
Database:Compendex Compilation and indexing terms, 2019 Elsevier Inc.


5.
Title:Preparation of Nano-HATO by Mechanical Milling Method and Its Performance Test
Accession number:20191206658169
Authors:Li, Bo1 ; Liu, Qiao-E2; Gao, Xiang-Dong2; Xiao, Lei1; Hao, Ga-Zi1 ; Ke, Xiang1; Zhang, Zhe1; Li, Dong-Nan1; Jiang, Wei1
Author affiliation:1 National Special Superfine Powder Engineer Research Center, Nanjing University of Science and Technology, Nanjing; 210094, China
2 Research Institute of Gansu Yinguang Chemical Industry Group Co., Ltd., Baiyin; Gansu; 730900, China
Corresponding author:Hao, Ga-Zi (hgznjust1989@163.com)
Source title:Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Abbreviated source title:Huozhayao Xuebao
Volume:42
Issue:1
Issue date:February 1, 2019
Publication year:2019
Pages:97-102
Language:Chinese
ISSN:10077812
CODEN:HUXUFP
Document type:Journal article (JA)
Publisher:China Ordnance Industry Corporation
Abstract:Nano-sized dihydroxylammonium 5,5'-bistetrazole-1,1'-diolate(HATO, also known as TKX - 50)was prepared by mechanical milling method combined with vacuum freeze-drying technology. Its particle size distribution was analyzed by a laser particle size analyzer, and its particle size and morphology were observed by scanning electron microscopy(SEM). The crystal form, composition and purity were analyzed by Fourier transform infrared spectroscopy (FT-IR) and X-ray diffraction(XRD). Its thermal decomposition characteristics were analyzed by thermogravimetry(TG) and differential scanning calorimetry(DSC), and the friction sensitivity and impact sensitivity of industrial micron-sized HATO and nano-HATO were tested. Results show that the prepared nano-HATO particles are uniform in size, spherical in shape, with an average particle size of less than 100nm and few impurities. The thermal decomposition peak temperature of nano-HATO is slightly advanced compared with that of industrial micron-sized HATO. The maximum thermal mass loss temperature is reduced by 2.46℃,the apparent activation energy is decreased by 2.02kJ/mol, and the self-ignition temperature is increased by 2.95℃,indicating that the thermodynamic stability is basically unchanged and the stability is improved. The impact sensitivity and friction sensitivity of nano-HATO are 44.5cm and 48%, respectively, which are 44% and 16% lower than those of industrial micron-sized HATO, indicating that the mechanical sensitivity is significantly reduced and the safety is improved.
2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references:18
Main heading:Particle size
Controlled terms:Accident prevention - Activation energy - Ball milling - Crystal impurities - Decomposition - Differential scanning calorimetry - Fourier transform infrared spectroscopy - Friction - Mechanical alloying - Milling (machining) - Particle size analysis - Pyrolysis - Scanning electron microscopy - Temperature - Thermogravimetric analysis - Thermolysis
Uncontrolled terms:High energy density materials - Mechanical ball milling - Nano-HATO - Purity - Sensitivity
Classification code:531Metallurgy and Metallography - 604.2Machining Operations - 641.1Thermodynamics - 801Chemistry - 802.2Chemical Reactions - 802.3Chemical Operations - 914.1Accidents and Accident Prevention - 933.1.1Crystal Lattice - 944.6Temperature Measurements -951Materials Science
Numerical data indexing:Percentage 1.60e+01%, Percentage 4.40e+01%, Percentage 4.80e+01%, Size 1.00e-07m, Size 4.45e-01m
DOI:10.14077/j.issn.1007-7812.2019.01.017
Database:Compendex Compilation and indexing terms, 2019 Elsevier Inc.


6.
Title:Solubility and Crystal Forms of Several Nitramine Explosives in Molten TNT and DNP
Accession number:20191206658167
Authors:Yao, Ru-Yi1, 2 ; Gou, Rui-Jun1 ; Zhang, Shu-Hai1; Zhu, Shuang-Fei1; Qian, Yan-Yan1; Hao, Wei-Zhe1
Author affiliation:1 School of Environment and Safety Engineering, North University of China, Taiyuan; 030051, China
2 National Key Laboratory of Applied Physics and Chemistry, Xi'an; 710061, China
Corresponding author:Gou, Rui-Jun (grjzsh@163.com)
Source title:Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Abbreviated source title:Huozhayao Xuebao
Volume:42
Issue:1
Issue date:February 1, 2019
Publication year:2019
Pages:89-93
Language:
Chinese
ISSN:
10077812
CODEN:
HUXUFP
Document type:
Journal article (JA)
Publisher:
China Ordnance Industry Corporation
Abstract:
To study the solubility of nitramine explosives in melt-casting carriers and to analyze the phase transition of nitramine explosives after dissolving, the solubility of RDX, HMX and CL-20 in 2,4,6-trinitrotoluene(TNT) and 3,4-dinitropyrazole(DNP) at 90℃ was measured by physical separation method, respectively. The nitramine explosives recovered after dissolution were characterized by Raman spectroscopy. The results show that the solubilities of RDX, HMX and CL-20 in TNT at 90℃ are 3.35, 0.24 and 4.99g/100g, and the solubilities in DNP are 2.28, 2.64 and 7.03g/100g, respectively. The crystal forms of RDX recovered after dissolving and cooling in TNT and DNP are all of α-type and the crystal forms of HMX recovered after dissolving and cooling in TNT and DNP are all of β-type. The crystalline forms of RDX and HMX before and after dissolving in TNT and DNP are the same, and without change. The crystal forms of CL-20 recovered after dissolving in TNT and DNP are all changed from Ε-type to β-type, indicating that the crystal form of CL-20 is unstable in melt-casting carrier explosives due to the effect of temperature and solvent. The dissolution and phase transition of nitramine explosives in the melt-casting explosive carrier will seriously affect the performance of the explosives.
2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references:11
Main heading:Explosives
Controlled terms:Dissolution - HMX - Phase transitions - Physical chemistry - Recovery - Solubility
Uncontrolled terms:2 ,4 ,6-trinitrotoluene - Crystal forms - Crystalline form - Effect of temperature - Melt casting - Nitramine explosives - Physical separation
Classification code:801.4Physical Chemistry - 802.3Chemical Operations - 804Chemical Products Generally
DOI:10.14077/j.issn.1007-7812.2019.01.015
Database:Compendex Compilation and indexing terms, 2019 Elsevier Inc.


7.
Title:Effect of Geometric Dimensions on Slow Cook-off Response Characteristics of DNAN-based Melt-casting Explosive
Accession number:20191206658162
Authors:Liu, Zi-De1 ; Zhi, Xiao-Qi1; Wang, Shuai1; Zhou, Jie1; Wang, Xue1; Fan, Xing-Hua2
Author affiliation:1 National Defence Key Subject Laboratory of Underground Target Damage Technology, North University of China, Taiyuan; 030051, China
2 Jinxi Industries Group Co.,LTD., Taiyuan; 030027, China
Source title:Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Abbreviated source title:Huozhayao Xuebao
Volume:42
Issue:1
Issue date:February 1, 2019
Publication year:2019
Pages:63-68
Language:Chinese
ISSN:10077812
CODEN:HUXUFP
Document type:Journal article (JA)
Publisher:China Ordnance Industry Corporation
Abstract:To study the effect of geometric dimensions on the thermal reaction law of DNAN-based melt-casting explosive, a slow cook-off test device was self-designed. The slow cook-off test of ammunition with four sizes of Φ19mm×19mm,Φ19mm×38mm,Φ19mm×76mm and Φ30mm×30mm was carried out under the two heating rates of 1℃/min and 3.3℃/h respectively by means of multi-point temperature measurement method. The calculation model of slow cook-off test of explosive was established. The response of cook-off bomb was calculated by Fluent software when thegeometric dimensions increased in one-dimension and two-dimension way at a heating rate of 3.3℃/h. The results show that the geometric dimensions and heating rate affect the response characteristics of cook-off bomb together. For the same cook-off bomb, the heating response level at a heating rate of 3.3℃/h is more severe than that of at a heating rate of 1℃/min. At a heating rate of 3.3℃/h, the ignition position of the cook-off bomb is located in the geometric center, and with the increase of the geometric dimensions, the temperature of outer wall of cook-off bomb gradually decreases at the ignition time, the cook-off bomb exits the lowest ambient temperature of 174.74℃ when the ignition reaction occurs, and when the length-to-diameter ratio of grain is 4, the temperature of the outer wall at the ignition time decreases exponentially with the increase of grain diameter.
2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references:10
Main heading:Geometry
Controlled terms:Bombs (ordnance) - Explosives - Heating - Heating rate - Physical chemistry - Temperature measurement
Uncontrolled terms:Calculation models - Geometric dimensions - Ignition position - Length to diameter ratio - Melt casting - Response characteristic - Slow cook off - Thermal reactions
Classification code:404Civil Defense and Military Engineering - 641.2Heat Transfer - 801.4Physical Chemistry - 921Mathematics - 944.6Temperature Measurements
DOI:10.14077/j.issn.1007-7812.2019.01.010
Database:Compendex Compilation and indexing terms,2019 Elsevier Inc.


8.
Title:Effect of Shell on Short-range Characteristics of Underwater Blast of Explosive
Accession number:20191206658161
Authors:Li, Biao-Biao1 ; Wang, Hui1; Shen, Fei1; Yuan, Bao-Hui1
Author affiliation:1 Xi'an Modern Chemistry Research Institute, Xi'an; 710065, China
Corresponding author:Yuan, Bao-Hui (ybhybh59@sina.com)
Source title:Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Abbreviated source title:Huozhayao Xuebao
Volume:42
Issue:1
Issue date:February 1, 2019
Publication year:2019
Pages:58-62
Language:Chinese
ISSN:10077812
CODEN:HUXUFP
Document type:Journal article (JA)
Publisher:China Ordnance Industry Corporation
Abstract:To study the influence of shell on the short-range characteristics of underwater blast, the Φ25mm cylinder test and the sliding detonation test of Φ25mm bare grain were carried out under water. The shock wave traces of charge with shell and charge without shell and the expansion traces of shell and bubble were compared and analyzed. The results show that the attenuation effect of shell on shock wave after explosion is obvious. The underwater blast shock wave front pressure and shock wave propagation speed of the shelled charge remain approximately the same at relatively low initial values (0.9GPa, 0.78mm/μs), while the underwater blast shock wave front pressure and the velocity of shock wave propagation of the bare charge are rapidly decaying from the higher initial value (8.5GPa,0.92mm/μs) in an exponential form. Due to the different influences of the shell on the expansion process during different expansion periods, the expansion rate of the shells with the shelled charge in the early (0-5μs) and late stages (after 20μs) of underwater explosions is lower than the rate of expansion of the bare charge bubble, and the expansion rate of the shells with the shelled charge in the medium term (5-20μs) of underwater explosions is higher than the rate of expansion of the bare charge bubble.
2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references:10
Main heading:Shock waves
Controlled terms:Cylinders (shapes) - Expansion - Explosives - Shells (structures) - Underwater explosions - Wave propagation - Wavefronts
Uncontrolled terms:Cylinder tests - Expansion rate - Explosion mechanics - Shell - Underwater blasts - Underwater warhead
Classification code:408.2Structural Members and Shapes - 472Ocean Engineering - 931Classical Physics; Quantum Theory; Relativity - 951Materials Science
Numerical data indexing:Pressure 8.50e+09Pa, Pressure 9.00e+08Pa, Time 0.00e+00s to 5.00e-06s, Time 2.00e-05s, Time 5.00e-06s to 2.00e-05s
DOI:10.14077/j.issn.1007-7812.2019.01.009
Database:Compendex Compilation and indexing terms, 2019 Elsevier Inc.


9.
Title:Overview of Physical and Chemical, Operational Properties of Nitrous Oxide Used as a Propellant for Low-thrust Rocket Engines
Accession number:20191206658155
Authors:Boryaev, A.A.1
Author affiliation:1 Saint Petersburg State University of Architecture and Civil Engineering, 4 Vtoraya Krasnoarmeyskaya Str., Saint Petersburg; 190005, Russia
Corresponding author:Boryaev, A.A. (sasa1953@yandex.ru)
Source title:Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Abbreviated source title:Huozhayao Xuebao
Volume:42
Issue:1
Issue date:February 1, 2019
Publication year:2019
Pages:17-31
Language:English
ISSN:10077812
CODEN:HUXUFP
Document type:Journal article (JA)
Publisher:China Ordnance Industry Corporation
Abstract:The results of a system analysis of the efficiency of nitrous oxide (N2O) as a propellant component for small space vehicles (SSV) were presented. A criterion for mass efficiency of the SSV propulsion system (PS) is determined. The current global state-of-the-art of SSV PSs is shown. The application field of nitrous oxide in SSV PSs is calculated and mass efficiency of N2O application is quantitatively determined. An overview of physical and chemical as well as operational properties of nitrous oxide as a promising, non-toxic component of rocket propellant is provided. Main physical and chemical constants of gaseous and liquid nitrous oxide; chemical properties of N2O, thermal stability of N2O, catalytic decomposition of N2O, a mechanism of decomposition of N2O, catalysts for decomposition of N2O, ballast additives to N2O, application of nitrous oxide, nitrous oxide as a rocket propellant, production of nitrous oxide, toxicity of nitrous oxide, fire hazard of N2O, requirements to equipment when handling N2O; storage and transportation of N2O are considered. It is demonstrated that nitrous oxide is a chemical compound meeting the requirements to rocket propellants, including those related to the environmental friendliness of propellants. With 75 references.
2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references:75
Main heading:Rockets
Controlled terms:Additives - Boosters (rocket) - Chemical equipment - Chemical hazards - Chemical stability - Decomposition - Efficiency - Nitrogen oxides - Propellants - Propulsion - Thermodynamic stability Uncontrolled terms:Catalytic decomposition - Environmental friendliness - Mechanism of decomposition - Nitrous oxide - Operational properties - Physical and chemical properties - Rocket propellants - Storage and transportations
Classification code:641.1Thermodynamics - 654.1Rockets and Missiles - 654.2Rocket Engines - 801Chemistry - 802.1Chemical Plants and Equipment - 802.2Chemical Reactions - 803Chemical Agents and Basic Industrial Chemicals - 804.2Inorganic Compounds - 913.1Production Engineering - 914.1Accidents and Accident Prevention
DOI:10.14077/j.issn.1007-7812.2019.01.003
Database:Compendex Compilation and indexing terms, 2019 Elsevier Inc.


10.
Title:Analytical Method for Quantitative Determination of DNTF by Non-self Standard Sample
Accession number:20191206658168
Authors:Luo, Xi1 ; Liu, Hong-Ni1; Su, Peng-Fei1; Zhang, Gao1 ; Hu, Yin1; Yang, Cai-Ning1; Liu, Ke1
Author affiliation:1 Xi'an Modern Chemistry Research Institute, Xi'an; 710065, China
Corresponding author:Zhang, Gao (zgg1965@163.com)
Source title:Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Abbreviated source title:Huozhayao Xuebao
Volume:42
Issue:1
Issue date:February 1, 2019
Publication year:2019
Pages:94-96 and 102
Language:Chinese
ISSN:10077812
CODEN:HUXUFP
Document type:Journal article (JA)
Publisher:China Ordnance Industry Corporation
Abstract:To accurately quantify 3, 4-bisnitrofurazanfuroxan (DNTF) in the absence of standard materials, a quantitative method for the determination of non-energetic and non-self standard of DNTF was established by gas chromatography-atomic emission spectroscopy (GC-AED) combined technology. By comparing the carbon element standard curves of DNTF and five non-energetic materials(diphenylamine, benzoic acid, acetanilide, DBS, DBP), the non-energetic material with the relative quantitative response factor closest to 1 was selected as the external standard to quantify the carbon element of DNTF, and then the DNTF was quantified by the molecular formula. The results show that the relative quantitative response factor of benzoic acid is the closest to 1, and the carbon element of DNTF is quantified by the carbon element standard curve of benzoic acid. The linear range of carbon element of DNTF is 17.43-426.92μg/mL, and the correlation coefficient (r) is 0.9992. The detection limit is calculated by three times of the signal-to-noise ratio and the method detection limit of the carbon element of DNTF is 0.0096μg/mL. Under the same conditions, the recoveries of DNTF at high, medium and low concentrations in the linear range are 104.9%,103.7% and 109.4%, and the relative standard deviations are 3.3%,1.1% and 1.5%, respectively. The method has good accuracy and precision, and accurate quantification of DNTF with non-energetic materials as external standards can be achieved in the absence of their own standard materials.
2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references:9
Main heading:Benzoic acid
Controlled terms:Acetanilid - Atomic emission spectroscopy - Carbon - Chemical analysis - Gas chromatography - Signal to noise ratio
Uncontrolled terms:3, 4-bisnitrofurazanfuroxan(DNTF) - Accurate quantifications - CIC method - Correlation coefficient - High energy density materials - Method detection limits - Quantitative determinations - Relative standard deviations
Classification code:716.1Information Theory and Signal Processing - 802.3Chemical Operations - 804Chemical Products Generally - 804.1Organic Compounds
Numerical data indexing:Mass_Density 1.74e-02kg/m3 to 4.27e-01kg/m3, Mass_Density 9.60e-06kg/m3, Percentage 1.05e+02%, Percentage 1.09e+02%, Percentage 1.50e+00%, Percentage 3.30e+00%
DOI:10.14077/j.issn.1007-7812.2019.01.016
Database:Compendex Compilation and indexing terms, 2019 Elsevier Inc.


11.
Title:Analysis of Crack Tip Propagation Process of HTPB Propellant Based on SEM and Digital Image Correlation Method
Accession number:20191206658164
Authors:Wang, Yang1 ; Li, Gao-Chun2; Zhang, Xuan3; Han, Yong-Heng2; Li, Xu4
Author affiliation:1 The 91526 Unit of PLA, Zhanjiang; Guangdong; 524057, China
2 Naval Aviation University, Yantai; 264001, China
3 Beijing Institute of Remote Sensing Equipment, Beijing; 100854, China
4 The 91115 Unit of PLA, Zhoushan; Zhejiang; 316000, China
Source title:Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Abbreviated source title:Huozhayao Xuebao
Volume:42
Issue:1
Issue date:February 1, 2019
Publication year:2019
Pages:73-78
Language:Chinese
ISSN:10077812
CODEN:HUXUFP
Document type:Journal article (JA)
Publisher:China Ordnance Industry Corporation
Abstract:To obtain the crack propagation characteristics of hydroxyl-terminated polybutadiene (HTPB) propellant from a microscopic point of view and analyze the mesoscopic failure mechanism of the crack, the crack tip deformation and expansion process of HTPB propellant three-point bending test were observed by in-situ scanning electron microscopy (SEM). The crack propagation deformation morphology of different deformation stages was obtained. The image sequence was analyzed by a digital image correlation method and the deformation field at propellant crack tip was obtained. Results show that the strain extreme value near the crack tip is 0.3474 when the extrusion displacement reaches 1mm as the crack continues to open, the solid particles near the crack tip appear dehumidification and the matrix around the particle is subjected to larger strain. When the extrusion displacement is 2.5mm, the strain extreme value near the crack tip is 0.4168, the aggregation of the micro-cracks generated at the interface between the particles and the matrix and the main cracks leads to the crack propagation. The combination of digital image correlation method and scanning electron microscope can be used to measure the deformation field of propellant at the mesoscopic scale and analyzed the failure mechanism of crack tip expansion process.
2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references:18
Main heading:Crack tips
Controlled terms:Correlation methods - Crack propagation - Deformation - Extrusion - HTPB propellants - Humidity control - Image analysis - Polybutadienes - Polyols - Scanning electron microscopy - Strain measurement - Superconducting materials
Uncontrolled terms:Deformation field - Digital image correlation methods - Extrusion displacement - Hydroxyl terminated polybutadienes - Mesoscopics - Propagation characteristics - Situ scanning electron microscopies (SEM) - Three-point bending test
Classification code:708.3Superconducting Materials - 804Chemical Products Generally - 804.1Organic Compounds - 815.1.1Organic Polymers - 922.2Mathematical Statistics - 943.2Mechanical Variables Measurements - 951Materials Science
Numerical data indexing:Size 1.00e-03m, Size 2.50e-03m
DOI:10.14077/j.issn.1007-7812.2019.01.012
Database:Compendex Compilation and indexing terms, 2019 Elsevier Inc.


12.
Title:Bullet Impact and Fast cookoff characteristics of HTPE Insensitive Solid Propellant
Accession number:20191206658165
Authors:Lü, Xi1 ; Pang, Wei-Qiang2 ; Li, Jun-Qiang2; Wang, Ke2; Liu, Fang-Li2; Fan, Xue-Zhong2; Fu, Xiao-Long2; Li, Huan2; Yang, Jian2
Author affiliation:1 Chinese People's Liberation Army, The Army Office in the 845 Factory, Xi'an; 710302, China
2 Xi'an Modern Chemistry Research Institute, Xi'an; 710065, China
Corresponding author:Pang, Wei-Qiang (nwpu_pwq@163.com)
Source title:Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Abbreviated source title:Huozhayao Xuebao
Volume:42
Issue:1
Issue date:February 1, 2019
Publication year:2019
Pages:79-83
Language:Chinese
ISSN:10077812
CODEN:HUXUFP
Document type:Journal article (JA)
Publisher:China Ordnance Industry Corporation
Abstract:The theoretical specific impulse, characteristic velocity and combustion temperature of HTPE insensitive solid propellant (mass ratio of PET: AP: Al is 18: 64: 18) were calculated and designed by means of minimum free energy principle, the heat of explosion and density of propellants were detected, and the mechanical sensitivity (impact sensitivity and friction sensitivity) were evaluated according to GJB772A-97 601.2 and GJB772A-97 602.1, and were compared with those of HTPB propellant. The bullet impact and fast cook - off properties of HTPE propellant were evaluated. The theoretical impulse of HTPE propellant under 6.86MPa is 268.0s, calculated heat of detonation is 7465J/g, and density is 1.812g/cm3, which are all higher than those of HTPB propellant. The results show that HTPE propellant can steadily burned under low pressure (1MPa), its pressure exponent is less than 0.42 at the pressure range from 1MPa to 18MPa. HTPE propellant has low sensitivity under the stimuli, its friction sensitivity and impact sensitivity are 0 and higher than 77cm, respectively, the 12.7mm bullet impact and fast cook-off tests of HTPE propellant show combustion reaction and low vulnerability.
2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references:22
Main heading:HTPB propellants
Controlled terms:Combustion - Explosives - Free energy - Friction - Physical chemistry
Uncontrolled terms:Bullet impact - Characteristic velocities - Combustion temperatures - Fast cook-off - Friction sensitivities - Mechanical sensitivity - Minimum free energy principles - Vulnerability
Classification code:641.1Thermodynamics - 801.4Physical Chemistry - 804Chemical Products Generally
Numerical data indexing:Mass_Density 1.81e+03kg/m3, Pressure 1.00e+06Pa, Pressure 1.00e+06Pa to 1.80e+07Pa, Pressure 6.86e+06Pa, Size 1.27e-02m, Size 7.70e-01m, Specific_Energy 7.46e+06J/kg
DOI:10.14077/j.issn.1007-7812.2019.01.013
Database:Compendex Compilation and indexing terms, 2019 Elsevier Inc.


13.
Title:Effects of Covering Thickness of Explosives on Explosive Welding
Accession number:20191206658160
Authors:Chen, Dai-Guo1, 2 ; Yao, Yong1 ; Deng, Yong-Jun1; Su, Liu-Feng1
Author affiliation:1 School of Civil Engineering and Architecture, Southwest University of Science and Technology, Mianyang; Sichuan; 621000, China
2 CAS Key Laboratory of Mechanical Behavior and Design of Materials, University of Science and Technology of China, Hefei; 230026, China
Corresponding author:Yao, Yong (yy001221@163.com)
Source title:Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Abbreviated source title:Huozhayao Xuebao
Volume:42
Issue:1
Issue date:February 1, 2019
Publication year:2019
Pages:52-57
Language:Chinese
ISSN:10077812
CODEN:HUXUFP
Document type:Journal article (JA)
Publisher:China Ordnance Industry Corporation
Abstract:To improve the energy utilization ratio of explosive and reduce the noise and dust in explosive welding, the upper surface of explosive was covered by hydrocolloid. The explosive welding experiments were carried out by 304 stainless steel plate and Q235 steel plate as flyer plate and base plate, respectively. The effects of different covering thickness on the impact velocity of flyer plate were studied by experimental measurement and theoretical calculation, and the micro morphology of the bonding interface was analyzed through applying the window theory of explosive welding and optical microscopy. Results show that using hydrocolloid as the upper end covering can significantly improve the energy utilization ratio of explosive. Compared with bare charge, the impact velocities of flyer plate increase by 38.9%, 57.5% and 71.9% respectively when the covering thickness are 15, 30 and 45mm. The detonation velocity and collision point movement velocity measured by experiment are in good agreement. The impact velocity predicted by Gurney formulas is significantly larger than the experimental value, whereas the impact velocity obtained for considering acceleration history agrees well with the experimental impact velocity. Metallographic analysis shows that within the welding window, the bonding interfaces is waveform bonding without voids, cracks and other defects and the larger the impact velocity of flyer plate is, the larger the interface wave amplitude is, whereas as closing to and higher than the upper limit of welding window, the voids, cracks and other defects will occur at the bonding interfaces.
2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references:27
Main heading:Explosives
Controlled terms:Cracks - Energy utilization - Explosive bonding - Explosive welding - Metallography - Thickness control - Velocity
Uncontrolled terms:Bonding quality - Covering - Explosion mechanics - Hydrocolloid - Impact velocities
Classification code:525.3Energy Utilization - 531.2Metallography - 538.2.1Welding Processes - 731.3Specific Variables Control
Numerical data indexing:Percentage 3.89e+01%, Percentage 5.75e+01%, Percentage 7.19e+01%, Size 3.00e-02m, Size 4.50e-02m
DOI:10.14077/j.issn.1007-7812.2019.01.008
Database:Compendex Compilation and indexing terms, 2019 Elsevier Inc.


14.
Title:Influences of Additives on Thermal Decomposition Behavior of Ammonium Dinitramide
Accession number:20191206658157
Authors:Zhang, Jian1 ; Wang, Ting-Peng1; Guo, Teng-Long1; Li, Lin1; Xu, De-Zhu1
Author affiliation:1 Dalian Institute of Chemical Physics, Chinese Academy of Sciences, Dalian; Liaoning; 116023, China
Corresponding author:Xu, De-Zhu (dzxu@dicp.ac.cn)
Source title:Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Abbreviated source title:Huozhayao Xuebao
Volume:42
Issue:1
Issue date:February 1, 2019
Publication year:2019
Pages:37-40 and 47
Language:Chinese
ISSN:10077812
CODEN:HUXUFP
Document type:Journal article (JA)
Publisher:China Ordnance Industry Corporation
Abstract:Prilled and modified ammonium dinitramide (ADN) and ADN/additive mixtures were prepared by adding three kinds of additives 3-amino-2-naphthol, urea and urotropine (hexamethylenetetramine, HMT) into ADN. The effect of the three kinds of additives on thermal decomposition behaviors of ADN was studied by differential scanning calorimetry (DSC) and thermogravimetric (TG) analysis method. The activation energies were calculated by Kissinger's method and Ozawa's method. The thermal decomposition behaviors of pure ADN and ADN/HMT mixture under isothermal conditions were further studied by isothermal methods(TG method and TAM method). The results show that the onset temperature and peak temperature of ADN decomposition were all increased by adding the three kinds of additives. When HMT was added to ADN, the enhancement of the onset temperature and the peak temperature of ADN decomposition is the largest among the three kinds of additives, the onset temperature of ADN is increased by 7.3-10.0℃ from DSC and 6.3-7.1℃ from TG, and the peak temperature is increased by 7.0-9.0℃ from DSC.The activation energies of ADN/HMT calculated by Kissinger's method and Ozawa's method are 155.6 and 165.2kJ/mol, respectively. When HMT is added, the initial decomposition rate of ADN is decreased from 3.0%/h to 1.6%/h, the exothermic peak changes from single peak to shoulder peak, and the peak position is obviously delayed, indicating that HMT can significantly inhibit the thermal mass loss and exothermal behavior of ADN.
?2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references:16
Main heading:Additives
Controlled terms:Activation energy - Decomposition - Differential scanning calorimetry - Isotherms - Mixtures - Physical chemistry - Thermodynamic stability - Thermogravimetric analysis - Thermolysis - Urea
Uncontrolled terms:Ammonium dinitramide - Decomposition rate - Isothermal conditions - Isothermal methods - Onset temperature - Thermal decomposition behavior - Thermo-gravimetric - Urotropine
Classification code:641.1Thermodynamics - 801Chemistry - 801.4Physical Chemistry - 802.2Chemical Reactions - 803Chemical Agents and Basic Industrial Chemicals - 804.1Organic Compounds - 944.6Temperature Measurements
DOI:10.14077/j.issn.1007-7812.2019.01.005
Database:Compendex Compilation and indexing terms, 2019 Elsevier Inc.


15.
Title:Synthesis and Characterization of Alkenyl-terminated Ethylene Oxide-tetrahydrofuran Copolyether
Accession number:20191206658159
Authors:Mo, Hong-Chang1 ; Wang, Xiao-Chuan1; Xu, Ming-Hui1; Lu, Xian-Ming1 ; Huang, Hai-Tao1; Wang, Wei1
Author affiliation:1 Xi'an Modern Chemistry Research Institute, Xi'an; 710065, China
Corresponding author:Lu, Xian-Ming (luxianming1220@126.com)
Source title:Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Abbreviated source title:Huozhayao Xuebao
Volume:42
Issue:1
Issue date:February 1, 2019
Publication year:2019
Pages:48-51
Language:Chinese
ISSN:10077812
CODEN:HUXUFP
Document type:Journal article (JA)
Publisher:China Ordnance Industry Corporation
Abstract:The alkenyl-terminated ethylene oxide-tetrahydrofuran copolyether with urethane groups (AUPET)was synthesized via addition reaction using hydroxyl-terminated ethylene oxide-tetrahydrofuran copolyether (PET)and allyl isocyanate as raw materials and dibutyltin dilaurate as catalyst. The structure of AUPET was characterized by IR, 1H NMR, 13C NMR and GPC. Its viscosity was measured by a cone-plate viscometer, and its glass transition temperature was measured by DSC. The mechanical properties of polyiso-oxazoline elastomer cured by tetramethyl-terephthalobisnitrile oxide(TTNO)were measured by tensile tests. Results show that the absorbance peaks of hydroxyl-terminated group completely disappeared and the characteristic peaks of the vinyl and urethane group appeared after addition reaction, the molecular chain in polyether does not break. The glass transition temperature of AUPET is -69.9℃, and the viscosity at 20℃ is 53.2Pa? s. The tensile strength of polyiso-oxazoline elastomer based on AUPET at room temperature is 1.75MPa and the elongation at break is 125%, which is better than that of polyiso-oxazoline based on HTPB.
2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references:11
Main heading:Glass transition
Controlled terms:Addition reactions - Binders - Elastomers - Esters - Ethylene - Glass - Mechanical properties - Temperature - Tensile strength - Tensile testing - Viscosity
Uncontrolled terms:Alkenyl - Allyl isocyanate - HTPB - Organic Chemistry - Tetra-hydrofuran
Classification code:631.1Fluid Flow, General - 641.1Thermodynamics - 802.2Chemical Reactions - 802.3Chemical Operations - 803Chemical Agents and Basic Industrial Chemicals - 804.1Organic Compounds - 812.3Glass - 818.2Elastomers - 951Materials Science
Numerical data indexing:Percentage 1.25e+02%, Pressure 1.75e+06Pa
DOI:10.14077/j.issn.1007-7812.2019.01.007
Database:Compendex Compilation and indexing terms, 2019 Elsevier Inc.


16.
Title:Study on Synthesis, Characterization and Properties of Triazidopentaerythrite-acetate
Accession number:20191206658156
Authors:Liu, Ya-Jing1 ; Wang, Ying-Lei1 ; Liu, Wei-Xiao1; Chen, Bin1; Lu, Ting-Ting1; Jiang, Han-Yu1
Author affiliation:1 Xi'an Modern Chemistry Research Institute, Xi'an; 710065, China
Corresponding author:Wang, Ying-Lei (wangyl204@163.com)
Source title:Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Abbreviated source title:Huozhayao Xuebao
Volume:42
Issue:1
Issue date:February 1, 2019
Publication year:2019
Pages:32-36
Language:Chinese
ISSN:10077812
CODEN:HUXUFP
Document type:Journal article (JA)
Publisher:China Ordnance Industry Corporation
Abstract:Triazidopentaerythrite-acetate(TAP-Ac) was synthesized with a total yield of 78.1% via two-step reactions of esterification and azidonation using pentaerythritol tribromidel as raw material. The structures of target compound and intermediates were characterized by IR, NMR and elemental analysis. The thermal behavior of TAP-Ac was studied by differential scanning calorimetry (DSC). Its density and mechanical sensitivity were tested. The effects of reaction conditions of esterification and azidonation on the yield were optimized. The results show that the optimized reaction conditions of esterification are as follows: the molar ratio of triethylamine and pentaerythritol tribromides is 1.1, the molar ratio of acetic anhydride and pentaerythritol tribromides is 1.5: 1.0, and the reaction time is 10h. The optimized reaction condition of azidonation is determined as:molar ratio of pentaerythritol tribromides /NaN3 is 1.00: 3.45, reaction temperature is 87-90℃ and reaction time is 12h. The glass transition temperature of TAP-Ac is -73.86℃ and thermal decomposition temperature is 251.9℃, indicating that TAP-Ac has better thermal stability. The density of TAP-Ac is 1.25g/cm3, impact sensitivity H50 is 29.9cm, and friction sensitivity is 8%, indicating that TAP-Ac is a novel azide plasticizer with good insensitivity and thermal stability.
2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references:14
Main heading:Molar ratio
Controlled terms:Decomposition - Differential scanning calorimetry - Esters - Glass transition - Plasticizers - Reinforced plastics - Thermodynamic stability
Uncontrolled terms:Azido plasticizers - Energetic plasticizer - Friction sensitivities - Mechanical sensitivity - Optimized reaction conditions - Organic Chemistry - Thermal decomposition temperature - Triazidopentaerythrite-acetate
Classification code:641.1Thermodynamics - 802.2Chemical Reactions - 802.3Chemical Operations - 803Chemical Agents and Basic Industrial Chemicals - 804.1Organic Compounds - 817.1Polymer Products - 944.6Temperature Measurements
Numerical data indexing:Mass_Density 1.25e+03kg/m3, Percentage 7.81e+01%, Percentage 8.00e+00%, Size 2.99e-01m, Time 3.60e+04s, Time 4.32e+04s
DOI:10.14077/j.issn.1007-7812.2019.01.004
Database:Compendex Compilation and indexing terms, 2019 Elsevier Inc.


17.
Title:Effect of Metal Powder on the Combustion Performance of NC/TMETN/FOX-7 Low Sensitive CMDB Propellant
Accession number:20191206658166
Authors:Li, Jun-Qiang1 ; He, Jun-Wu1; Zhang, Chao1; Wang, Jiang-Ning1; Yang, Li-Bo1
Author affiliation:1 Xi'an Modern Chemistry Research Institute, Xi'an; 710065, China
Source title:Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Abbreviated source title:Huozhayao Xuebao
Volume:42
Issue:1
Issue date:February 1, 2019
Publication year:2019
Pages:84-88
Language:Chinese
ISSN:10077812
CODEN:HUXUFP
Document type:Journal article (JA)
Publisher:China Ordnance Industry Corporation
Abstract:The effects of different metal powders such as aluminum(Al) powder, magnesium-aluminum alloy(Mg-Al) powder and boron(B) powder, as well as the content and particle size of Al powder on the combustion performance(burning rate and pressure exponent) of NC/TMETN/FOX-7 CMDB propellant were studied by a burning rate-strand burner method. The flame structures of the propellant were studied by single amplification color photography. The results show that the burning rate of NC/TMETN/FOX-7 CMDB propellant can be improved by adding metal powder into propellant formulation. The burning rate of propellant by metal powder decreases in the order of Al-Mg>Al>B. With the increase of Al powder (particle size as 12.5μm) mass fraction from 0 to 10%, the burning rate of NC/TMETN/FOX-7 propellant increases first and then decreases.When the mass fraction of Al powder is 5%, the burning rate of propellant reaches the highest of 21.19mm/s. The burning rate of NC/TMETN/FOX-7 CMDB propellant increases with the increase of particle size of Al powder. When the particle size of Al powder increases from 12.5μm to 45μm, the burning rate increases from 21.19mm/s to 24.47mm/s at 10MPa and the pressure exponent at 8-14MPa decreases below 0.20. The flame structures of NC/TMETN/FOX-7 propellant is similar to that of NC/NG based propellant, which consists of preheating zone, subsu face zone, dark zone and flame zone, and the boundary of each zone is not very obvious.
2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references:20
Main heading:Aluminum alloys
Controlled terms:Color photography - Combustion - Composite propellants - Magnesium alloys - Magnesium powder - Metals - Particle size - Physical chemistry - Powder metals - Propellants
Uncontrolled terms:Burning rate - Composite-modified double-base propellants - FOX-7 - Pressure exponents - Pyrazines - Strand burner methods
Classification code:541.2Aluminum Alloys - 542.2Magnesium and Alloys - 742.1Photography - 801.4Physical Chemistry - 951Materials Science
Numerical data indexing:Percentage 0.00e+00% to 1.00e+01%, Percentage 5.00e+00%, Pressure 1.00e+07Pa, Pressure 8.00e+06Pa to 1.40e+07Pa, Size 1.25e-05m, Size 1.25e-05m to 4.50e-05m, Velocity 2.12e-02m/s, Velocity 2.12e-02m/s to 2.45e-02m/s
DOI:10.14077/j.issn.1007-7812.2019.01.014
Database:Compendex Compilation and indexing terms, 2019 Elsevier Inc.


18.
Title:Bonding Interaction of N5- with Metal Ions and Organic Cations
Accession number:20191206658153
Authors:Lu, Ming1 ; Xu, Yuan-Gang1; Wang, Peng-Cheng1; Lin, Qiu-Han1
Author affiliation:1 School of Chemical Engineering, Nanjing University of Science and Technology, Nanjing; 210094, China
Source title:Huozhayao Xuebao/Chinese Journal of Explosives and Propellants
Abbreviated source title:Huozhayao Xuebao
Volume:42
Issue:1
Issue date:February 1, 2019
Publication year:2019
Pages:1-5
Language:Chinese
ISSN:10077812
CODEN:HUXUFP
Document type:Journal article (JA)
Publisher:China Ordnance Industry Corporation
Abstract:The bonding interaction of N5- anions with typical metal cations and non-metallic compounds was studied through analyzing the internal structures of crystals reflected by single crystals. The results show that in most metal-containing N5- based compounds, coordination bonds are ubiquitous and η1-N5 is the only coordination mode of metal ions and pentazole N5-. In aqueous compounds, hydrogen bonds play an important role in the stability of N 5-anions. In the anhydrous non-metallic penzolium ion salts, the N5- anions are stabilized by the N-H...N hydrogen bonds.According to the difference in the bonding form of the N5-, the stable forms of the N5- can be classified into four broad categories. It is pointed out that using quantum chemical tools and on the basis of existing compounds, accurately simulating and designing the assembly mode of compounds and the mechanism of anionic and cationic interaction will provide a strong theoretical basis for the synthesis of new pentazole compounds.
2019, Editorial Board of Journal of Explosives & Propellants. All right reserved.
Number of references:17
Main heading:Complexation
Controlled terms:Hydrogen bonds - Metal ions - Metals - Negative ions - Nitrogen compounds - Physical chemistry - Positive ions - Quantum chemistry - Single crystals
Uncontrolled terms:Bonding interactions - Coordination bonds - Coordination modes - Internal structure - Nonmetallic compounds - Organic cations - Pentazole - Quantum chemical
Classification code:
531.1Metallurgy - 801.4Physical Chemistry - 802.2Chemical Reactions - 933.1Crystalline Solids
DOI:10.14077/j.issn.1007-7812.2019.01.001
Database:Compendex Compilation and indexing terms, 2019 Elsevier Inc.