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中文摘要：
穿并且当 50CC 油添加剂被学习，表面的磨擦性质修改了 Cu nanoparticles。Cu nanoparticles 的 tribological 性质上的温度的效果在一个四球的测试者上被调查。形态学，典型元素分发和穿的表面的化学状态被 SEM，版本和 XPS 分别地描绘。为了推进，调查 Cu nanoparticles 的 tribological 机制，一个 nano 缩进测试者被利用测量穿的表面的微机械性质。结果显示那油温度使用了越多高， Cu nanoparticles 的 tribological 性质是越多更好。这能被推断薄铜有更低的有弹性的模量和坚硬的保护的电影在穿的表面上被形成，它导致 Cu nanoparticles 的好 tribological 表演，特别当油温度更高时。
英文摘要：
Wear and friction properties of surface modified Cu nanoparticles as 50CC oil additive were studied. The effect of temperature on tribological properties of Cu nanoparticles was investigated on a four-ball tester. The morphologies, typical element distribution and chemical states of the worn surfaces were characterized by SEM, EDS and XPS, respectively. In order to further investigate the tribological mechanism of Cu nanoparticles, a nano-indentation tester was utilized to measure the micro mechanical properties of the worn surface. The results indicate that the higher the oil temperature applied, the better the tribological properties of Cu nanoparticles are. It can be inferred that a thin copper protective film with lower elastic modulus and hardness is formed on the worn surface, which results in the good tribological performances ofCu nanoparticles, especially when the oil temperature is higher.
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