Cu/La2NiO4电接触材料的制备及电弧烧蚀性能研究PREPARATION OF CU/LA2NIO4 ELECTRICAL CONTACT MATERIALS AND STUDY ON ARC EROSION PERFORMANCE
王博文,陈瑞华,常凯歌,董文琪,郭永利,童童
摘要(Abstract)：
解决铜基触点材料因易氧化而生成不导电物质导致触点失效的关键在于提高材料的导电性能，基于导电陶瓷La_2NiO_4因其具有导电性能，论文采用溶胶凝胶法制备获得了导电陶瓷La_2NiO_4粉体，用粉末冶金法制备出致密Cu/La_2NiO_4复合材料并进行微观形貌观察和物相分析。经过电弧烧蚀后，观察表面烧蚀形貌，探讨氧化层的微观组织，并进行温升测试。研究结果表明，电弧烧蚀后的Cu/La_2NiO_4复合材料表面有裂纹并且触点表面有多种侵蚀形貌特征并存，氧化层可能因接触力的作用而脱落以提高导电性能。本论文的研究工作表明，采用铜掺杂导电陶瓷La_2NiO_4的方法，可以有效提高电触点材料电弧烧蚀后的导电性。
关键词(KeyWords)： 电弧烧蚀;温升;导电陶瓷La_2NiO_4;复合材料
基金项目(Foundation): 2022年西安交通大学本科教学改革研究青年项目(2022Q-19);; 2023国家级大学生创新训练项目SJ202310698003资助
作者(Author): 王博文,陈瑞华,常凯歌,董文琪,郭永利,童童
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