提出了一种新的铜-塑自润滑复合材料的设计方法,导出了其极限承载力与摩擦系数的关系.在此设计理论基础上研制出新型铜-塑复合材料NTS-100.自润滑复合材料承受的弹性模量越小、接触应力越大,其承载力越大;接触面的剪切强度越小,摩擦系数越小.铜-塑自润滑纳米滑块的承载能力高、摩擦系数小.填充纳米Al2O3在保持低摩擦系数同时,提高承载力,抑制聚四氟乙烯(PTFE)塑料的蠕变,减少实际接触面积,降低时效摩擦系数.
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