Evaluating elastic modulus and strength of hard coatings by relative method

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	Evaluating elastic modulus and strength of hard coatings by relative method
	Y. W. Bao; Y. C. Zhou; X. X. Bu; Y. Qiu
	2007
发表期刊	Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing
ISSN	0921-5093
卷号	458 期号:1-2 页码:268-274
摘要	A simple approach named relative method is developed for determining the elastic modulus and strength of hard coatings. Analytical relationship among the moduli of the film, the substrate, and the film/substrate system was derived based on bending model, from which the elastic modulus of the coating can be determined uniquely via the measured moduli of the samples before and after coating. Furthermore, the relationship between the strength of the films and the bending strength of the coated sample is derived, thus both the modulus and the strength of coating can be evaluated via traditional tests on coated samples. Mathematic expressions of those calculations were derived, respectively for rectangular beam samples with three types of coating configurations: single face coating, sandwich coating and around coating. Experimental results using various brittle coatings demonstrated the validity and convenience of this method. (c) 2007 Published by Elsevier B.V.
部门归属	china bld mat acad, beijing 100024, peoples r china. chinese acad sci, met res inst, shenyang natl lab mat sci, shenyang 110016, peoples r china.;bao, yw (reprint author), china bld mat acad, beijing 100024, peoples r china;ywbao@imr.ac.cn
关键词	Relative Method Hard Coating Strength Elastic Modulus Practical Property Hertzian Indentation Residual-stresses Thermal-expansion Youngs Moduli Thin-films Nanoindentation Substrate Fracture Diamond
URL	查看原文
WOS记录号	WOS:000246407600037
引用统计	被引频次：32[WOS] [WOS记录] [WOS相关记录]
文献类型	期刊论文
条目标识符	http://ir.imr.ac.cn/handle/321006/33426
专题	中国科学院金属研究所
推荐引用方式 GB/T 7714	Y. W. Bao,Y. C. Zhou,X. X. Bu,et al. Evaluating elastic modulus and strength of hard coatings by relative method[J]. Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,2007,458(1-2):268-274.
APA	Y. W. Bao,Y. C. Zhou,X. X. Bu,&Y. Qiu.(2007).Evaluating elastic modulus and strength of hard coatings by relative method.Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing,458(1-2),268-274.
MLA	Y. W. Bao,et al."Evaluating elastic modulus and strength of hard coatings by relative method".Materials Science and Engineering a-Structural Materials Properties Microstructure and Processing 458.1-2(2007):268-274.