朱顺新,刘勇,李国辉,田保红,张毅,宋克兴

• 1:河南科技大学材料科学与工程学院
• 2:有色金属共性技术河南省协同创新中心
• 3:河南省有色金属材料科学与加工技术重点实验室

摘要(Abstract)：

抗电弧侵蚀性能是衡量电接触材料性能的重要指标,本文对采用放电等离子烧结技术(简称SPS法)制备出的Cu-10Cr复合材料进行电接触试验,研究了其在直流、阻性负载条件下材料的损失、转移情况,通过扫描电镜观察材料电弧侵蚀后的形貌并对形貌特征进行了表征。结果表明:在电流强度小于30 A条件下,材料未发生明显转移,但触头阴极和阳极均有一定的损耗;当电流强度大于35 A时,材料从阴极向阳极转移,并且随电流强度增大转移量随之增加;电弧侵蚀后触头表面呈现如气孔、裂缝和凹坑等形貌特征,且随电流强度增大而越明显;电流增加,熔焊力增大,接触电阻则有所降低。

关键词(KeyWords)： Cu-10Cr复合材料;电弧侵蚀;材料转移;熔焊力;接触电阻

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51101052);; 河南省高校重点科研项目(15A430006)

作者(Author): 朱顺新,刘勇,李国辉,田保红,张毅,宋克兴

DOI: 10.13289/j.issn.1009-6264.2016.07.003

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