|本期目录/Table of Contents|

[1]盖希强,张兴高,吕玺,等.MgB2的制备及工艺优化[J].火炸药学报,2018,41(5):451-454.[doi:10.14077/j.issn.1007-7812.2018.05.005]
 GAI Xi-qiang,ZHANG Xing-gao,Lü Xi,et al.Preparation and Process Optimization of MgB2[J].,2018,41(5):451-454.[doi:10.14077/j.issn.1007-7812.2018.05.005]
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MgB2的制备及工艺优化()
     
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《火炸药学报》[ISSN:1007-7812/CN:61-1310/TJ]

卷:
41卷
期数:
2018年第5期
页码:
451-454
栏目:
出版日期:
2018-10-31

文章信息/Info

Title:
Preparation and Process Optimization of MgB2
作者:
盖希强 张兴高 吕玺 王娜 安文书 师宏心 彭文联 任秀娟
1. 军事科学院防化研究院, 北京 102205;
2. 中国人民解放军驻845厂军代室, 陕西 西安 710302;
3. 国家国防科技工业局经济技术发展中心, 北京 100081
Author(s):
GAI Xi-qiang ZHANG Xing-gao Lü Xi WANG Na AN Wen-shu SHI Hong-xin PENG Wen-lian REN Xiu-juan
1. Research Institute of Chemical Defense, Academy of Military Sciences, Beijing 102205, China;
2. Military Representative Office of 845 Plant, People’s Liberation Army of China, Xi’an 710302, China;
3. Centre for Economic and Technological Development, National Defense Science of Technology and Industry, Beijing 100081, China
关键词:
材料化学硼化物MgB2机械合金化高能球磨镁粉硼粉
Keywords:
material chemistryborideMgB2mechanical alloyinghigh-energy ball millMg powderB powder
分类号:
TJ55;TQ128+1
DOI:
10.14077/j.issn.1007-7812.2018.05.005
文献标志码:
-
摘要:
采用机械合金化和热处理相结合的方法制备了MgB2化合物;采用振动式高能球磨机进行球磨,研究了磨球尺寸、球磨时间、热处理温度、保温时间等对合金化效果的影响,获得了最佳制备工艺参数。结果表明,在保持磨球质量与粉末物料质量比不变的情况下,采用大尺寸不锈钢球(Φ10 mm)代替小尺寸球(Φ2 mm,Φ5 mm),可以提高球磨时的撞击能量,加速Mg-B粉末的机械合金化;热处理温度不宜超过Mg的熔点,否则Mg粉易发生氧化和挥发;热处理保温时间越长,对产物MgB2物相形成越有利;MgB2的最佳制备工艺参数为:Mg粉和B粉按摩尔比1∶2混合,球磨介质为Φ10 mm的不锈钢球,磨球质量与粉末物料质量比20∶1,球磨时间12 min,再将粉末在真空管式炉中进行热处理,升温速率为5℃/min,并在580℃下保温10 h。
Abstract:
The MgB2 compound was prepared by a combination method of mechanical alloying and heat treatment. The ball mill was carried out by a vibrating type high-energy ball grinder mill. The influence of grinding ball size, ball grinding time, heat treating temperature and heat preservation time on the alloying effect was studied. The optimum preparation technology parameters were obtained. The results show that the use of large-size stainless steel balls (Φ10 mm) instead of small-size balls (Φ2 mm,Φ5 mm) can increase the impact energy during ball milling and accelerate the mechanical alloying of Mg-B powder in the case of keeping the mass ratio of grinding ball and powder material unchanged. The heat treaing temperature should not exceed the melting point of Mg, otherwise Mg powder will be oxidized and volatilized easily. The longer the heat treatment holding time, the better the phase formation of the product MgB2. The best preparation process parameters obtained is Mg powder and B powder mixed uniformly in mole ratio of 1:2, ball mill medium as Φ10mm stainless steel ball, the mass ratio of grinding ball and powder material as 20:1, grinding time 12 min, heat treatment of powder in vacuum tube furnace, heating rate as 5℃/min, heat preservation at 580℃ for 10 h.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2018-04-30;改回日期:2018-06-26。
基金项目:国家自然科学基金(No.51404279);装备预先研究项目(No.30110020502)
作者简介:盖希强(1980-),男,硕士,工程师,从事烟火技术与弹药工程研究。E-mail:gaixq@126.com
通讯作者:张兴高(1981-),男,博士,副研究员,从事含能毁伤与光电对抗技术研究。E-mail:xinggaozhang@aliyun.com
更新日期/Last Update: 1900-01-01