准分子激光预处理对硬质合金表面沉积金刚石薄膜结合强度的影响

金属学报, 1996, 32(9): 966-970.

准分子激光预处理对硬质合金表面沉积金刚石薄膜结合强度的影响

北京科技大学

EFFECT OF EXCIMER LASER PRETREATMENT ON DIAMOND FILM DEPOSITED ON HARD ALLOY SUBSTRATE

LI Chengming , WANG Jianming , XU Zhong (Taijuan University of Technology , Taiyuan 030024)LU Fanxiu , WANG Jianjun (University of Science and Technology Beijing

Keywords： : laser pretreatment; WC-Co; diamond film , 金刚石薄膜 , 准分子激光

研究了不同表面预处理条件下，硬质合金表面沉积金刚石薄膜的附着强度和破坏方式．结果表明，准分子激光预处理可以大幅度提高金刚石薄膜的附着强度，其作用机理是由于准分子激光辐照处理使硬质合金表面层的Ｃｏ选择性蒸发，避免了Ｃｏ对金刚石薄膜沉积的有害影响，以及由于高能激光束引起的表面改性（粗糙化）所产生的对金刚石薄膜的“锚链效应”．

Adhesion strength of diamond film with substrate WC-6% Co (YG6) subjected to different pre-treatments was studied. It was found that the adhesion was greatly increased by excimer laser irradiation pre-treatment. The mechanisms responsible for this adhesion enhancement are due to the selective evaporation of cobalt and, to a larger extent, due to the "anchoring effect" resulted from the surface modification (roughening) by the energetic excimer laser beam.

参考文献

[1]
[2]
[3]
[4]	MurakawaM．SurCoatTechnol,1988

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