葛月鑫,杨正海,孙乐民,张永振,张军伟

• 1:河南科技大学高端轴承摩擦学技术与应用国家地方联合工程实验室
• 2:中科院兰州化学物理研究所固体润滑国家重点实验室

摘要(Abstract)：

采用放电等离子烧结技术(SPS)制备铜基石墨复合材料,研究不同烧结温度对铜-石墨复合材料的致密度、维氏硬度、电导率和载流摩擦磨损性能的影响。结果表明:在所制备的铜-石墨复合材料中,石墨均匀分布,铜与石墨界面结合紧密;随着烧结温度的升高,复合材料的致密度、维氏硬度和电导率均升高,但摩擦系数和磨损率均先减小后增大,其中烧结温度为780℃时,摩擦系数和磨损率同时达到最小值;同时,在设定的烧结温度范围内,载流效率和载流稳定性在很小的范围内波动。在设定工况下,载流摩擦损伤机理主要为磨粒磨损,烧结温度在780℃左右时摩擦损伤较轻,烧结温度超过780℃时所制备的材料,磨损时伴有严重电弧烧蚀现象。综合考虑,780℃为制备铜-石墨复合材料的最优烧结温度。

关键词(KeyWords)： 放电等离子烧结;烧结温度;铜-石墨复合材料;载流摩擦磨损;磨粒磨损

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金面上项目(51375147);; 河南省自然科学基金(162300410091);; 中科院兰州化学物理研究所固体润滑国家重点实验室开放课题(LSL-1601)

作者(Author): 葛月鑫,杨正海,孙乐民,张永振,张军伟

DOI: 10.13289/j.issn.1009-6264.2018-0409

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