华南理工大学学报(自然科学版) ›› 2016, Vol. 44 ›› Issue (11): 97-102.doi: 10.3969/j.issn.1000-565X.2016.11.015

• 机械工程 • 上一篇    下一篇

自支撑金刚石厚膜片的HFCVD 法制备及摩擦学特性

冯伟1,2 杨斌1 卢文壮1†   

  1. 1. 南京航空航天大学 机电学院,江苏 南京 210016; 2. 盐城工学院 机械工程学院,江苏 盐城 224051
  • 收稿日期:2016-03-18 修回日期:2016-05-16 出版日期:2016-11-25 发布日期:2016-10-04
  • 通信作者: 冯伟( 1983-) ,女,博士生,讲师,主要从事表面工程、精密与超精密加工研究. E-mail:zhu5411492@163.com
  • 作者简介:冯伟( 1983-) ,女,博士生,讲师,主要从事表面工程、精密与超精密加工研究.
  • 基金资助:

    国家自然科学基金资助项目( 51275230) ; 江苏省科技计划项目( 2015057-22) ; 江苏省六大人才高峰项目( ZBZZ-002) ; 江苏省研究生培养创新工程项目( KYLX_0227) ; 南京航空航天大学中央高校基本科研业务费专项资金资助项目

Preparation and Tribological Properties of HFCVD-Based Freestanding Thick Diamond Film

FENG Wei1,2 YANG Bin1 LU Wen-zhuang1   

  1. 1.College of Mechanical and Electrical Engineering,Nanjing University of Aeronautics and Astronautics,Nanjing 210016,Jiangsu,China; 2.College of Mechanical Engineering,Yancheng Institute of Technology,Yancheng 224051,Jiangsu,China
  • Received:2016-03-18 Revised:2016-05-16 Online:2016-11-25 Published:2016-10-04
  • Contact: 冯伟( 1983-) ,女,博士生,讲师,主要从事表面工程、精密与超精密加工研究. E-mail:zhu5411492@163.com
  • About author:冯伟( 1983-) ,女,博士生,讲师,主要从事表面工程、精密与超精密加工研究.
  • Supported by:
    Supported by the National Natural Science Foundation of China( 51275230) and the Science and Technology Planning Project of Jiangsu Province,China( 2015057-22)

摘要: 探讨了自支撑金刚石厚膜片的晶体生长模型,并依据模型通过热丝化学气相沉积( HFCVD) 法制备了厚度为0. 6mm 的自支撑金刚石厚膜片. 采用球- 盘式摩擦磨损试验机进行摩擦学实验,借助扫描电镜、拉曼光谱仪等研究了自支撑金刚石厚膜片分别与钢球、陶瓷球以及铝球组成对偶副时的摩擦学特性. 结果表明: 铝球做对偶球时平均摩擦系数最大,在对磨初始阶段很快出现了金属转移层; 陶瓷球做对偶球时摩擦系数最小,球表面物质的微观形貌呈微细碎屑状分布; 对磨后自支撑金刚石厚膜片的磨损量非常小,是良好的耐磨材料.

关键词: 热丝化学气相沉积法, 自支撑金刚石厚膜, 摩擦系数, 磨损

Abstract:

A crystal growth model of freestanding thick diamond film was discussed,and on the basis of this model,a self-standing thick diamond film slice of a thickness of about 0.6mm was prepared by means of HFCVD ( Hot-Filament- Assisted Chemical Vapor Deposition) method.Then,a friction experiment of the film slice was conducted on a ball-disc tribometer,and the tribological properties of the film slices respectively with a steel ball,a ceramic ball and an aluminum ball as the friction pair were characterized by using a SEM and a Raman spectrometer.The results show that ( 1) when the friction pair is an aluminum ball,average friction coefficient is the biggest and metal transfer layer appears very fast in the initial stage of grinding; ( 2) when the friction pair is a ceramic ball,the average friction coefficient is the smallest and the ball surface material is in a fine clastic distribution; and ( 3) the wear of the film slice is very small after the experiment,which means that the film slice is a good wear-resistant material.

Key words: hot-filament-assisted chemical vapor deposition, self-standing thick diamond film, friction coefficient, wear