射频PECVD方法生长含氢非晶碳膜的结构及摩擦学性能

利用射频等离子体增强化学气相沉积技术在不锈钢表面制备了含氢非晶碳膜.采用Raman光谱、红外光谱、X射线光电子能谱和原子力显微镜等研究了薄膜的微观结构和表面形貌,在栓盘摩擦磨损试验机上考察了薄膜在不同载荷与滑动速度下的摩擦学性能.结果表明:所制备的含氢非晶碳膜具有典型的类金刚石结构特征,薄膜均匀、致密,表面粗糙度小;薄膜与不锈钢球对磨时显示出良好的抗磨减摩性能;薄膜的抗磨减摩性能同对磨件表面上形成的转移膜以及摩擦过程中薄膜结构的石墨化相关.

Structure and Tribological Properties of a-C:H Films Deposited by RF PECVD

The hydrogenated amorphous carbon(a-C:H) thin films were successfully deposited on stainless steel substrate by radio frequency plasma enhanced chemical vapor deposition(RF PECVD).The microstructure and morphology of the film were investigated by means of Raman spectroscopy,X-ray photoelectron spectroscopy,infrared spectrometry and atomic force microscopy.The friction and wear behavior of the film sliding against a stainless steel ball under different loads and at different velocities were examined on a pin-on-disc tester.It was found that the film prepared by RF PECVD has typical hydrogenated diamond-like characteristics and is very smooth and compact,and it shows good friction-reducing and wearable behavior when sliding against a stainless steel ball.The results also revealed that the films wearability is in relation to the graphite transfer film formed on the worn surface and the graphitization of the film in tribological process.