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[1]李月星,范明聪,王吉林,等.反应稀释自蔓延法制备碳化硼超细粉[J].武汉工程大学学报,2018,40(02):186-189.[doi:10. 3969/j. issn. 1674?2869. 2018. 02. 013]
 LI Yuexing,FAN Mingcong,WANG Jilin,et al.Preparation of Ultrafine B4C Powders by Reaction-Diluted Self-Propagation High-Temperature Synthesis Method[J].Journal of Wuhan Institute of Technology,2018,40(02):186-189.[doi:10. 3969/j. issn. 1674?2869. 2018. 02. 013]
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《武汉工程大学学报》[ISSN:1674-2869/CN:42-1779/TQ]

卷:
40
期数:
2018年02期
页码:
186-189
栏目:
材料科学与工程
出版日期:
2018-05-17

文章信息/Info

Title:
Preparation of Ultrafine B4C Powders by Reaction-Diluted Self-Propagation High-Temperature Synthesis Method
文章编号:
20180213
作者:
李月星1范明聪1王吉林2陈亚兵1谷云乐*1
1. 武汉工程大学材料科学与工程学院,湖北 武汉 430205;2. 桂林理工大学材料科学与工程学院,广西 桂林 541004
Author(s):
LI Yuexing1 FAN Mingcong1 WANG Jilin2 CHEN Yabing1 GU Yunle*1
1. School of Materials Science and Engineering,Wuhan Institute of Technology, Wuhan 430205, China;2. School of Materials Science and Engineering,Guilin University of Technology, Guilin 541004, China
关键词:
碳化硼 自蔓延 硼酸 葡萄糖
Keywords:
boron carbide self-propagating synthesis boric acid glucose
分类号:
TQ127.1+2
DOI:
10. 3969/j. issn. 1674?2869. 2018. 02. 013
文献标志码:
A
摘要:
以硼酸/镁粉/葡萄糖为反应体系,利用稀释反应自蔓延法制备碳化硼超细粉末。通过改变反应原料的配比来调节反应体系吸放热反应的比率,控制自蔓延反应和产物晶粒尺寸。制备工艺的最佳条件为吸放热比率0.14,反应启动温度800 ℃。通过X射线衍射仪、扫描电子显微镜、拉曼和傅里叶红外光谱、激光粒度分析仪和热重差示扫描量热,对产物的晶型、形貌、结构、粒径分布进行了表征。结果表明: m(C)∶m(B)∶m(Mg)=1∶2.9∶5.8,反应启动温度为800 ℃时,反应制备得到是B4C结构的碳化硼,纯度最高,产物粒径为400 nm左右。
Abstract:
The ultrafine boron carbide powders were prepared by the diluted self-propagation high-temperature synthesis (SHS) method using H3BO3/Mg/C6H12O6 as a reaction system. The ratios of endothermic/exothermic reaction in SHS were controlled by changing the ratios of raw materials,and then controlling the SHS process and the product particle sizes. The optimal conditions were the endothermic/exothermic ratio of 0.14 with an initiation temperature of 800 ℃. The crystal structure,morphology,structure and size distribution of the products were characterized by X-ray diffraction,scanning electron microscopy,Raman and Fourier infrared spectroscopy,laser particle size analyzer and thermogravimetry differential scanning calorimetry,respectively. The results showed that the highest purity B4C powders with an average particle size of 400 nm could be prepared when the mass ratio of C,B and Mg was 1∶2.9∶5.8 and the initiation temperature was 800 ℃.

参考文献/References:

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备注/Memo

备注/Memo:
收稿日期:2017-06-08基金项目:广西省自然科学基金(2016GXNSFBA380155);武汉市科学技术局关键技术攻关项目(2015010202010097)作者简介:李月星,硕士研究生。 E-mail:[email protected]*通讯作者:谷云乐,博士,教授。E-mail:[email protected]引文格式:李月星,范明聪,王吉林,等. 反应稀释自蔓延法制备碳化硼超细粉 [J]. 武汉工程大学学报,2018,40(2):186-189,196.
更新日期/Last Update: 2018-04-25