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首页> 外文期刊>Surface Engineering >Tribological characterisation of electrodeposited nickel-titania nanocomposite coatings sliding against silicon nitride in high vacuum
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Tribological characterisation of electrodeposited nickel-titania nanocomposite coatings sliding against silicon nitride in high vacuum

机译：高真空下氮化硅滑动的电沉积镍-二氧化钛纳米复合涂层的摩擦学表征

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摘要

Tribological characterisation of electrodeposited nickel-titania nanocomposite coatings sliding against silicon nitride in high vacuum was investigated by means of a ball on disk tribometer in a chamber at the pressure less than 5 × 10−3 Pa. An X-ray diffractometer, a scanning electron microscope, a Vickers microhardness tester and a surface profilometer were utilised to characterise the microstructure, morphology and mechanical properties respectively. The experimental results showed that the tribological characterisation of nanocystalline nickel in high vacuum was affected obviously by incorporating titania nanoparticles. Comparatively, the friction coefficient and wear rate of the coatings in vacuum are slightly higher than those in ambient air at room temperature.
机译：通过在小于5×10 -3 Pa的压力室内，通过圆盘摩擦计上的球在高真空下研究了在高真空下滑动沉积在氮化硅上的电沉积镍-二氧化钛纳米复合涂层的摩擦学特性。用射线衍射仪，扫描电子显微镜，维氏显微硬度测试仪和表面轮廓仪分别表征了组织，形态和力学性能。实验结果表明，掺入二氧化钛纳米粒子对纳米晶镍在高真空下的摩擦学特性有明显的影响。相比之下，真空中涂层的摩擦系数和磨损率略高于室温下环境空气中的摩擦系数和磨损率。

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