| 纳米晶CuCr合金的制备及其截流值研究 |
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| 引用本文： | 冯宇,张程煜,丁秉钧.纳米晶CuCr合金的制备及其截流值研究[J].稀有金属材料与工程,2005,34(9):1439-1442. |
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| 作者姓名： | 冯宇 张程煜 丁秉钧 |
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| 作者单位： | 西安交通大学,陕西,西安,710049 |
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| 基金项目： | 国家自然科学基金资助项目（50071043） |
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| 摘 要： | 通过高能球磨和真空热压技术制备了致密度大于98%的纳米晶CuCr合金,通过XRD,SEM和TEM研究了其显微组织和结构.结果表明,其晶粒尺寸小于50 nm.在模拟电路上研究了其真空电弧稳定性和截流值,纳米晶CuCr合金的真空电弧稳定性好于常规CuCr合金,其截流值为常规CuCr合金的17%～35%.
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| 关 键 词： | 纳米晶CuCr 触头材料 截流值 |
| 文章编号： | 1002-185X(2005)09-1439-04 |
| 收稿时间： | 2004-03-31 |
| 修稿时间： | 2004-10-30 |
Preparation of Nanocrystalline CuCr Contact Materials and Their Chopping Currents |
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| Feng Yu;Zhang ChengYu;Ding BingJun.Preparation of Nanocrystalline CuCr Contact Materials and Their Chopping Currents[J].Rare Metal Materials and Engineering,2005,34(9):1439-1442. |
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| Authors: | Feng Yu;Zhang ChengYu;Ding BingJun |
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| Abstract: | Nanocrystalline CuCr alloys with a relative density of above 98% can be prepared by high energy ball milling and hot pressing technique. The grain size of nanocrystalline CuCr alloy is less than 50 nm. The vacuum arc instability and chopping current of nanocrystalline CuCr materials were studied in an artificial circuit. The results show that the vacuum arc of nanocrystalline CuCr is more stable than that of conventional materials, the chopping current is 17%-35 % of that of conventional alloys. |
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| Keywords: | nano CuCr contact materials chopping current |
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