学术
摘 要:
用机械合金化的方法制备了可为等离子壁材料的W-30％TiC（体积百分数）纳米复合粉末。用BET N2吸附法测量了球磨前后复合粉末的比表面，用激光粒度仪测量复合粉末的粒径分布，用X射线衍射分析了粉末的晶粒尺寸，用SEM观察了球磨前后粉末形貌。研究结果表明，W-TiC粉末的最佳球磨参数为：球磨介质比约2：1，球料比约10：1，球磨转速约200r·min^-1，球磨时间约25h。[著者文摘]
文章出处:
《核聚变与等离子体物理》-2008年28卷1期 -81-84页
栏目信息:
文献标识码:
A
文章编号:
0254-6086（2008）01-0081-04
Preparation of tungsten matrix nanocrystalline powders for plasma facing materials
YU Fu-wen, WU Yu-cheng, CHEN Yong, CHEN Jun-ling （1. School of Materials Science and Engineering, Hefei University of Technology, Hefei 230009; 2. Institute of Plasma Physics, Academy of Chinese Sciences, Hefei 230031）
Abstract:
W-30%TiC nanocrystalline composite powders for plasma facing materials were prepared by mechanical alloying. Influences of parameters of mechanical alloying process such as liquid-to-balls-and-powders ratio, ball-to-powder ratio, milling speed and milling time on characteristics of the milled powders were studied. The optimal mechanical alloying process parameters were the liquid-to-balls-and-powders ratio 2：1, ball-to-powders ratio 10：1, milling speed 200r-min^-1 and milling time 25h, respectively.[著者文摘]
Key words:
Mechanical alloying; Tungsten; Titanium carbide; Nanocrystalline composite powders
基金资助:
合肥工业大学中青年创新群体基金资助（103-037016）;中科院等离子体物理研究所合作项目（103-413361）
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