| 新型Cu/Cr2Nb真空断路器触头材料的制备与性能研究 |
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| 引用本文： | 鲁世强,胡春文,王克鲁,李鑫,董显娟,贺跃辉.新型Cu/Cr2Nb真空断路器触头材料的制备与性能研究[J].粉末冶金技术,2007,25(2):109-113. |
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| 作者姓名： | 鲁世强 胡春文 王克鲁 李鑫 董显娟 贺跃辉 |
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| 作者单位： | 1. 南昌航空工业学院材料学院,南昌,330063
2. 中南大学粉末冶金国家重点实验室,长沙,410083 |
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| 基金项目： | 江西省自然科学基金
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江西省材料科学与工程中心资助项目
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航空基础科学基金
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江西省教育厅科研项目 |
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| 摘 要： | 以Cu粉和Cr2Nb粉为原材料,分别采用真空烧结和真空热压工艺制备新型Cu/Cr2Nb触头材料.研究了制备工艺、材料成分对Cu/Cr2Nb触头材料的组织和性能的影响规律.结果表明,采用一般烧结工艺难以制备出致密度高的Cu/Cr2Nb材料,而采用热压工艺不仅可制备出致密度高的Cu/Cr2Nb材料,而且与CuCr50触头材料相比,在硬度相当的前提下,Cu/Cr2Nb材料的导电性能显著提高.
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| 关 键 词： | Cu/Cr2Nb触头材料 烧结和热压 组织与性能 |
| 收稿时间： | 2006-04-03 |
| 修稿时间： | 2006年4月3日 |
Fabrication and properties of new-type Cu/Cr2Nb contact materials for vacuum switching mechanism |
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| Lu Shiqiang,Hu Chunwen,Wang Kelu,Li Xin,Dong Xianjuan,He Yuehui.Fabrication and properties of new-type Cu/Cr2Nb contact materials for vacuum switching mechanism[J].Powder Metallurgy Technology,2007,25(2):109-113. |
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| Authors: | Lu Shiqiang Hu Chunwen Wang Kelu Li Xin Dong Xianjuan He Yuehui |
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| Affiliation: | School of Material Science and Engineering, Nanehang Institute of Aeronautical Technology, Nanehang 330063, China; State Key Laboratory for Powder Metallurgy, Central South Univesity, Changsha 410083, China |
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| Abstract: | The new- type Cu/Cr2Nb contact materials were fabricated from the mixture of Cu and Cr2Nb powders by the vacuum sintering and hot - pressing, respectively. The effects of fabrication processes and composition on the microstructures and properties were investigated. The results show that the Cu/Cr2Nb materials with high relative density are difficult to be obtained by the pressureless sintering, the Cu/Cr2Nb materials with high relative density can be fabricated by hot - pressing, compared with CuCr50 contact materials, the conductive behaviours of the hot - pressed Cu/Cr2Nb materials are greatly improved under the condition of the hardness of both materials being comparable. |
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| Keywords: | Cu/Cr2Nb contact materials aintering and hot- pressing microstructures and properties |
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