Microstructure and performances of MoN/CrMoN bi-layer coatings

IF 2.1 4区 材料科学 Q2 MATERIALS SCIENCE, CERAMICS
Chih-Fu Yang, Chih-Chung Hu, Chih-Tsung Chang, Chun-Chih Hsu, Kun-Yuan Lin, Chun-Yao Hsu
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Abstract

This study utilized direct current (DC) magnetron sputtering to produce a MoN/CrMoN bi-layer film. The impact of the MoN buffer layer thickness, varying Mo DC power, and substrate plasma etching pre-treatment on the structural and mechanical properties of MoN/CrMoN bi-layer films was investigated. With fixed CrMoN film deposition parameters an increase in the thickness of the MoN buffer layer led to a reduction in the grain size of the MoN/CrMoN bi-layer film and an enhancement in the surface hardness of the film coating. Fixed MoN buffer, Cr DC power and change the Mo DC power, the results show that as the Mo power increases, the crystal position of the (111) crystal plane diffraction peak of the MoN/CrMoN bi-layer film shifted to a higher angle along with changes in internal stress. Substrates pre-treated by plasma etching showed increased surface roughness, hydrophilic tendency, and good film coating adhesion. By increasing the plasma etching power of the substrate pre-treated, the MoN/ZrMoN bi-layer film has better mechanical properties. The H, E, H/E ratio H3/E2 ratio, Re, and the coefficient of friction of the MoN/CrMoN bi-layer films are 14.59 GPa, 144.8 GPa, 0.101, 0.148, 65.2%, and 0.39, respectively.

Abstract Image

MoN/CrMoN双层涂层的微观结构与性能
本研究利用直流磁控溅射技术制备了MoN/CrMoN双层薄膜。研究了MoN缓冲层厚度、不同的Mo直流功率和基底等离子体刻蚀预处理对MoN/CrMoN双层膜结构和力学性能的影响。在固定的CrMoN膜沉积参数下,MoN缓冲层厚度的增加导致MoN/CrMoN双层膜的晶粒尺寸减小,膜层涂层的表面硬度提高。固定MoN缓冲器、Cr直流功率和改变Mo直流功率,结果表明,随着Mo功率的增大,MoN/CrMoN双层膜(111)晶面衍射峰的晶体位置随着内应力的变化而向更高角度移动。经等离子体蚀刻预处理的基材表面粗糙度、亲水性和膜层附着力均有所提高。通过提高预处理基底的等离子体刻蚀功率,使MoN/ZrMoN双层膜具有更好的力学性能。MoN/CrMoN双层膜的H、E、H/E比、H3/E2比、Re和摩擦系数分别为14.59 GPa、144.8 GPa、0.101、0.148、65.2%和0.39。
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来源期刊
Journal of the Australian Ceramic Society
Journal of the Australian Ceramic Society Materials Science-Materials Chemistry
CiteScore
3.70
自引率
5.30%
发文量
123
期刊介绍: Publishes high quality research and technical papers in all areas of ceramic and related materials Spans the broad and growing fields of ceramic technology, material science and bioceramics Chronicles new advances in ceramic materials, manufacturing processes and applications Journal of the Australian Ceramic Society since 1965 Professional language editing service is available through our affiliates Nature Research Editing Service and American Journal Experts at the author''s cost and does not guarantee that the manuscript will be reviewed or accepted
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