叶喜葱,肖克强,曹如心,林咸参,吴海华,赵光伟

• 1:三峡大学水电机械设备设计与维护湖北省重点实验室

摘要(Abstract)：

利用选择性激光烧结(SLS)技术制备蜂窝结构石墨骨架,对蜂窝结构石墨骨架进行固化、浸渍、碳化和镀铜处理,制备蜂窝骨架结构石墨/铝基自润滑复合材料,并研究浸渍工艺和石墨含量对复合材料摩擦系数的影响。研究表明:浸渍工艺使石墨骨架中的孔隙明显减少,随着浸渍次数的增加,骨架中的固化树脂从断链状向网状和面状发展,有利于石墨骨架强度的提高,其中第一次浸渍强化效果最为显著;石墨的添加使复合材料的摩擦系数低于铝基体合金,但随着石墨含量的增加,复合材料稳定磨损阶段的摩擦系数先减少后增加,当石墨含量为10%时,摩擦系数最小,为0.3左右。

关键词(KeyWords)： 蜂窝;石墨;摩擦;铝;金属基复合材料;自润滑

Abstract:

Keywords:

基金项目(Foundation): 国家自然科学基金(51604161,51604162);; 湖北省自然科学基金(2016CFB236);; 水电机械设备设计与维护湖北省重点实验室开放基金(2016KJX11)

作者(Author): 叶喜葱,肖克强,曹如心,林咸参,吴海华,赵光伟

DOI: 10.13289/j.issn.1009-6264.2018-0048

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