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| 粒度配比法制备近全致密W/Cu20复合材料 | |
| 引用本文： | 刘彬彬,陈江华,谢建新.粒度配比法制备近全致密W/Cu20复合材料[J].稀有金属材料与工程,2010,39(1):17-21. |
| 作者姓名： | 刘彬彬 陈江华 谢建新 |
| 作者单位： | 1. 湖南大学,湖南,长沙410082;北京科技大学,北京100083 2. 湖南大学,湖南,长沙410082 3. 北京科技大学,北京,100083 |
| 基金项目： | National Outstanding Young Scientist Foundation of China (50125415) |
| 摘 要： | 选用A、B两种不同粒度的W粉,调节A、B钨粉的比例,并与Cu粉直接混合,配制成W/Cu20(质量分数%,下同)混合粉末,经热压制备了近全致密的W-Cu复合材料。显微组织观察表明,随着小粒度W粉配比的增加,大W颗粒形成的孔隙逐渐减少,而小W颗粒形成的孔隙逐渐增加。当W粒度配比为80%A+20%B时,形成较为致密的堆积结构。在合适的工艺条件下(烧结温度1060℃、压力85MPa、保温3h),所制备的W/Cu20复合材料其相对密度达到98.6%,Cu相沿大W颗粒和小W颗粒的边界呈现网状分布。 |
| 关 键 词： | 粒度配比 热压 钨铜复合材料 相对密度 热沉材料 |
| 收稿时间： | 2009/1/13 0:00:00 |
Fabrication of W/Cu20 Composite Materials with Nearly Full Density by Particle Size Distribution Method |
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| Liu Binbin,Chen Jianghua and Xie Jianxin.Fabrication of W/Cu20 Composite Materials with Nearly Full Density by Particle Size Distribution Method[J].Rare Metal Materials and Engineering,2010,39(1):17-21. | |
| Authors: | Liu Binbin Chen Jianghua and Xie Jianxin |
| Affiliation: | Hunan University, Changsha 410082, China;Hunan University, Changsha 410082, China;University of Science and Technology Beijing, Beijing 100083, China |
| Abstract: | In order to fabricate highly dense W/Cu20 (mass fraction,similarly hereinafter) composite materials,two kinds of tungsten powder with different particle size,A and B,were used.The W powder with different ratios of A and B were directly mixed with copper powder and W/Cu20 mixed powder was obtained.Almost fully dense W-Cu composite materials were fabricated by solid-state hot pressing.The observation of microstructure shows that with increasing of the fine W powder (B) content,the pores formed by the coarse W... |
| Keywords: | particle size distribution hot press tungsten-copper composite materials relative density heat-sink materials |
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