CVD deposition of nanocrystalline diamond coatings on implant alloy materials with CrN/Al interlayer

被引：12

作者：

Li, Y. S. ^{[1
]}

Ye, F. ^{[1
]}

Corona, J. ^{[1
]}

Taheri, M. ^{[1
]}

Zhang, C. ^{[1
]}

Sanchez-Pasten, M. ^{[2
]}

Yang, Q. ^{[1
]}

机构：

[1] Univ Saskatchewan, Dept Mech Engn, Saskatoon, SK S7H 5A9, Canada

[2] Inst Politecn Nacl, Dept Ingn Quim Ind, ESIQIE, Mexico City 07738, DF, Mexico

来源：

SURFACE & COATINGS TECHNOLOGY | 2018年 / 353卷

基金：

加拿大健康研究院; 加拿大自然科学与工程研究理事会; 加拿大创新基金会;

关键词：

CVD; Diamond; Steel; Adhesion; Interlayer; CHEMICAL-VAPOR-DEPOSITION; WC-CO; STAINLESS-STEEL; FILMS; WEAR;

D O I：

10.1016/j.surfcoat.2018.07.108

中图分类号：

TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Integration of smooth nanocrystalline diamond coatings on biomedical implant substrates (CoCr, SS316) for enhanced biomedical performances has great application potentials due to their extraordinary wear/corrosion resistance and biocompatibility. However, chemical vapor deposition (CVD) of adherent diamond coatings on such substrates encounters a major technical barrier of weak interface bonding strength. In this study, single CrN interlayer of different thickness and duplex CrN/Al interlayer have been prepared on CoCr alloy and SS316 steel substrates to improve the adhesion of diamond coatings. The diamond coating produced with a single CrN interlayer up to 1 pm thick still shows insufficient adhesion ability to the substrates. A combination of CrN and Al, with a total thickness of 0.45 mu m, significantly enhances the diamond coating/substrate bonding strength. The fundamental mechanism of enhanced interfacial adhesion is discussed in terms of the individual role the two kinds of interlayer materials play.

引用

页码：364 / 369

页数：6

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