碳热还原法制备高性能^(10.8)B_4C和^(10)B_4C粉末  

High Performance ^(10.8)B_4C and ^(10)B_4C Powders Prepared by Carbothermal Reduction Method

作　　者：赵林[1] 魏红康[1] 张玉军[2] 谢志鹏[1,3] 汪长安[1,3] 

机构地区：[1]景德镇陶瓷学院材料科学与工程学院,江西景德镇333403 [2]山东大学材料液态结构及其遗传性教育部重点实验室,济南250061 [3]清华大学新型陶瓷与精细工艺国家重点实验室,北京100084

出　　处：《陶瓷学报》2014年第4期372-375,共4页Journal of Ceramics

基　　金：国家自然科学基金(编号:51202097;51102120);江西省自然科学基金(编号:20132BAB216008);清华大学新型陶瓷与精细工艺国家重点实验室开放基金(编号:KF1202);景德镇市科学技术局科技计划项目(编号:2012JGY-1-49);辽宁省镁资源与镁质材料工程技术研究中心开放基金(编号:USTLKEC201410)

摘　　要：采用碳热还原法制备出普通碳化硼(10.8B4C)粉末和硼10碳化硼(10B4C)粉末。系统研究了碳源、硼碳比、烧成温度、球磨时间等工艺参数对10.8B4C粉末性能的影响,并分别采用X射线衍射仪和激光粒度仪对其物相组成和粒度分析,实验结果表明:以碳黑为碳源、硼碳比为6:7、烧成温度1750℃、球磨5 h后可制备出高纯度、中位粒径为2.56 μm的10.8B4C粉末。采用相同的工艺参数可制备出性能优良的10B4C粉末。10.8B4C and 10B4C powders were prepared by carbothermal reduction method. The inlfuence of process parameters such as carbon source, B/C molar ratios, calcining temperature and milling time on the properties of 10B4C powder was researched. X-ray diffractometer and Laser particle size analyzer were used to analyze phase composition and particle size, respectively. The results show that 10.8B4C powder with high purity and median particle diameter of 2.56μm was prepared with carbon black as carbon source, B/C molar ratios of 6：7, calcining temperature of 1750℃and milling for 5 h. 10B4C powder with high properties could be prepared with the same process parameters.

关 键 词：碳热还原 碳化硼 中位粒径 球磨 

分 类 号：TQ174.75[化学工程—陶瓷工业]