采用多靶反应磁控溅射设备制备了一系列不同基体负偏压的W-C-N复合膜.采用X射线衍射仪、扫描电镜、能量色散谱仪、纳米压痕仪和摩擦磨损仪对薄膜进行表征.结果表明:当负偏压小于等于80 V时,薄膜表现出六方α-WCN相结构,增加到120 V时,转变为立方β-WCN相,薄膜硬度、弹性模量和膜基结合力出现对应最佳性能点的峰值；随着负偏压的增大,薄膜质量得到改善,磨损率和摩擦系数明显降低,负偏压达到200 V时,磨损率和摩擦系数分别出现最低值4.22×10-6 mm3·N-1 ·m-1和0.27；薄膜的磨损机制主要是磨粒磨损.
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