ISSN   1004-0595

CN  62-1224/O4

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直流法制备类富勒烯碳氢薄膜的摩擦学性能研究

Tribological Performance of Fullerene-like Hydrogenated Carbon Films Prepared by Direct Current Method

  • 摘要: 采用直流等离子体化学气相沉积(dc-PECVD)技术,以甲烷为前驱体,在单晶硅表面制备了含氢类富勒烯(FL-C:H)薄膜.简化了含氢类富勒烯(FL-C:H)薄膜的脉冲偏压协助等离子体化学气相制备过程(mc-PECVD),通过高分辨率透射电镜和拉曼光谱确定了FL-C:H薄膜的微观结构和薄膜内的富勒烯含量;通过纳米压痕和往复摩擦试验对比了两种方法制备的FL-C:H与传统的DLC薄膜的硬度及摩擦性能.结果表明:与用脉冲偏压协助方案制备的含氢类富勒烯薄膜相比,直流方案制备的FL-C:H薄膜具有相似的微观结构,更优异的机械特性及摩擦学性能,同时该薄膜表现出对载荷、频率和相对湿度的低敏感性.

     

    Abstract: Hydrogenated fullerene-like carbon (FL-C:H) films were deposited on Si(100) substrates by a direct current plasma enhanced chemical vapor deposition(dc-PECVD) technique using pure CH4 as feedstock. Simplify the hydrogen fullerene (FL-C: H) films prepared by pulsed bias-assisted plasma chemical vapor process (mc-PECVD). The microstructures and the FL content of the FL-C:H films were characterized by high transmission electron microscopy and Raman spectrum. The mechanical properties and friction behaviors of the films were investigated by using a Nano-indenter and a ball-on-disk tester. Results show that compared with the hydrogen-containing fullerene-like films prepared by pulse bias-assisted method,FL-C:H films prepared by dc method that exhibited a similar microstructure,superior excellent mechanical properties and tribological performance,and these films showed low sensitivity to load,frequency and relative humidity.

     

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