| 纳米复合碳化钨-钴粉末的分散与粒度表征 |
| |
| 引用本文： | 邵刚勤,谢济仁,段兴龙,蔡虎,余晓华,吴伯麟,袁润章.纳米复合碳化钨-钴粉末的分散与粒度表征[J].材料科学与工艺,2003,11(4):340-342. |
| |
| 作者姓名： | 邵刚勤 谢济仁 段兴龙 蔡虎 余晓华 吴伯麟 袁润章 |
| |
| 作者单位： | 武汉理工大学,材料复合新技术国家重点实验室,湖北,武汉,430070 |
| |
| 基金项目： | 国家高技术研究发展计划(863计划)，湖北省科技攻关项目，2002AA302504、863-715-009-0010，2001AA101B03，， |
| |
| 摘 要： | 为研究纳米复合碳化钨-钴粉末的分散稳定性和粒度表征方法，以一定量分散介质和分散剂作用于纳米复合碳化钨-钴粉末，利用氮吸附法(BET)、光子相关光谱法(PCS)和电位分析仪分别测试了粉末的比表面积、粒度及其分布和粉末的ξ电位．研究结果表明：高比重的纳米复合碳化钨-钴粉末经一定工艺处理后具有相当的分散稳定性，但长时间球磨对分散并非有利；用BET可表征一次粒径，而PCS则表征二次粒径。
|
| 关 键 词： | 纳米复合碳化钨-钴粉末 分散稳定性 粒度分布 氮吸附法 光子相关光谱法 电位分析仪 |
| 文章编号： | 1005-0299(2003)04-0340-03 |
| 修稿时间： | 2002年2月24日 |
Dispersion & particle indication of nano-composite WC-Co powder |
| |
| SHAO Gang-qin,XIE Ji-ren,DUAN Xing-long,CAI Hu,YU Xiao-hua,WU Bo-lin,YUAN Run-zhanging,Wuhan University of Technology,Wuhan ,China.Dispersion & particle indication of nano-composite WC-Co powder[J].Materials Science and Technology,2003,11(4):340-342. |
| |
| Authors: | SHAO Gang-qin XIE Ji-ren DUAN Xing-long CAI Hu YU Xiao-hua WU Bo-lin YUAN Run-zhanging Wuhan University of Technology Wuhan China |
| |
| Affiliation: | SHAO Gang-qin,XIE Ji-ren,DUAN Xing-long,CAI Hu,YU Xiao-hua,WU Bo-lin,YUAN Run-zhanging,Wuhan University of Technology,Wuhan 430070,China) |
| |
| Abstract: | In order to study the dispersion stabilization characteristics and particle indication of nano-composite WC-Co powder, the powder was dispersed by using quantitative dispersing agent and medium, BET surface area was determined by liquid nitrogen adsorption. Particle size and distribution values were obtained from photo correlation spectroscopy (PCS), and zeta potentials were also detected. Results show that the nano-composite WC-Co powder with high specific gravity holds considerable dispersion stabilization characteristics after being treated by an appropriate technological process. But long time balling is unfavorable to dispersion. BET method can be used to indicate the primary particle size of the powder, and PCS the agglomerate size. |
| |
| Keywords: | nano-composite powder WC-Co dispersion particle indication |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ |
|
