| 热压烧结纳米晶铜粉性能的研究 |
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| 引用本文： | 王春华,肖长江.热压烧结纳米晶铜粉性能的研究[J].稀有金属快报,2008,27(2):39-42. |
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| 作者姓名： | 王春华 肖长江 |
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| 作者单位： | 河南工业大学,河南,郑州,450007 |
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| 基金项目： | 河南省高校青年骨干教师资助项目 |
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| 摘 要： | 利用置换反应制得平均粒径47nm的纳米晶铜粉并将其进行真空热压烧结。作为对比，将市售电解铜粉在相同条件下制得烧结试样。对试样的微观结构和性能进行了研究和分析。研究发现，由纳米晶铜粉制得的烧结试样，与电解铜粉的具有相同的致密度，弯曲强度提高21％，维氏硬度提高83％，电阻率提高50％。
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| 关 键 词： | 纳米铜微晶 热压烧结 性能 |
| 文章编号： | 1008-5939（2008）02-039-04 |
| 收稿时间： | 2007-11-19 |
| 修稿时间： | 2007年11月19 |
Study on the Properties of Hot-Pressed Nano-Crystallinic Cu Powders |
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| Wang Chunhua,Xiao Changjiang.Study on the Properties of Hot-Pressed Nano-Crystallinic Cu Powders[J].Rare Metals Letters,2008,27(2):39-42. |
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| Authors: | Wang Chunhua Xiao Changjiang |
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| Affiliation: | Wang Chunhua, Xiao Changjiang (Henan University of Technology, Zhengzhou 450007, China) |
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| Abstract: | Cu powders with nano-crystalline of 47 nm in mean grain size were attained based on cementation reaction and were hot-pressed in vacuum. For comparison purpose, commercial electrolytic copper powders were hot-pressed under the same conditions. The mierostrueture and properties of the samples were analyzed. Compared to the specimens made by commercial copper powders, the samples made by nano-crystallinic Cu powders have the same density while the bending strength increased by 21%, the Vickers hardness by 83% and the electrical resistivity by 50%. |
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| Keywords: | nano-crystallinic Cu powders hot pressing properties |
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