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| 高能球磨制备纳米WC-Co复合粉末及其SPS烧结 | |
| 引用本文： | 张凤林,崔晓龙,朱敏,王成勇.高能球磨制备纳米WC-Co复合粉末及其SPS烧结[J].硬质合金,2007,24(2):80-83. |
| 作者姓名： | 张凤林 崔晓龙 朱敏 王成勇 |
| 作者单位： | 1. 广东工业大学机电学院,广东,广州,510006 2. 华南理工大学机械学院,广东,广州,510641;深圳市飞亚达(集团)股份有限公司技术中心,深圳,518057 3. 华南理工大学机械学院,广东,广州,510641 |
| 摘 要： | 本文采用高能球磨法制备纳米结构WC-Co粉末,并采用放电等离子体烧结方法(SPS)对该纳米粉末进行致密化。使用X射线衍射、SEM等手段分析了高能球磨对WC-Co复合粉末中WC晶粒尺寸和粒度的影响。发现经过90h左右的高能球磨,WC-Co的粉末粒度可以达到300nm左右,而WC的晶粒尺寸可以细化到8nm左右。经过SPS烧结后,合金中的WC相的晶粒尺寸可以保持在300nm左右,而Co多以fcc结构出现。 |
| 关 键 词： | 高能球磨 纳米结构 WC-Co SPS烧结 |
Nanostructured WC-Co Composite Powder Fabricated by High-energy Ball Milling and Spark Plasma Sintering |
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| Zhang Fenglin,Cui Xiaolong,Zhu Min,Wang Chengyong.Nanostructured WC-Co Composite Powder Fabricated by High-energy Ball Milling and Spark Plasma Sintering[J].Cemented Carbide,2007,24(2):80-83. | |
| Authors: | Zhang Fenglin Cui Xiaolong Zhu Min Wang Chengyong |
| Affiliation: | 1.Faculty of Mechanical and Electronic Engineering, Guangdong University of Technology, Guangzhou Guangdong, 51000; 2. Faculty of Mechanical Engineering, South China University of Technology, Guangzhou Guangdong, 510641; 3. Technology Center of Shenzhen Fiyta Holdings LTD.,Shenzhen 518057 |
| Abstract: | In this paper the nanostructured WC-Co powder is fabricated by high-energy ball milling, and also consolidated by spark plasma sintering (SPS) subsequently. X-ray diffraction and SEM are used to analyze the grain size of WC and the particle size of WC-Co in the ball milling. It is found that by 90 hours of high-energy ball milling, the particle size of WC-Co is about 300 nm, and the grain size of WC can be refined to 8 nm. After the SPS sintering, the grain size of WC in the hardmetal can be retained as 300 nm or so. The cobalt in the SPS sintered hardmetal is normally in the form of fcc. |
| Keywords: | WC-Co |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |