期刊
APPLIED SURFACE SCIENCE
卷 253, 期 12, 页码 5302-5305出版社
ELSEVIER SCIENCE BV
DOI: 10.1016/j.apsusc.2006.12.002
关键词
r.f. magnetron sputtering; ZrC/ZrB2; multilayered coatings; nanoscale
ZrC/ZrB2 multilayered coatings with bilayer periods ranging from 4.4 to 35.5 nm were synthesized by r.f. magnetron sputtering. X-ray diffraction, scanning electron microscopy and nanoindention were employed to investigate the microstructure and mechanical properties of the nanoscale multilayers. The results indicated that all coatings had the clear multilayered structure with mixed ZrB2(0 0 1), ZrB2(0 0 2) and ZrC(1 1 1) preferred orientations. The maximum hardness (41.7 GPa) was observed in the multilayer with 27.5-nm thick period, which is about 25% higher than the rule-of-mixture value of the monolithic ZrC and ZrB2 coatings. It also exhibited the best adhesion. Its critical load was over 70 mN. While through insert ZrB2 into ZrC layer periodically, higher residual stress built in ZrC layer can be released. (c) 2006 Elsevier B.V. All rights reserved.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据