ZrCuFeAlAg thin film metallic glass for potential dental applications

被引：41
作者：
Cai, Chu-Ning [1 ]
Zhang, Cheng [1 ]
Sun, Ying-Sui [2 ]
Huang, Her-Hsiung [1 ,2 ]
Yang, Cong [1 ]
Liu, Lin [1 ]
机构：
[1] Huazhong Univ Sci & Technol, Sch Mat Sci & Engn, State Key Lab Mat Proc & Die & Mould Technol, Wuhan 430074, Peoples R China
[2] Natl Yang Ming Univ, Dept Dent, Taipei, Taiwan
来源：
INTERMETALLICS | 2017年 / 86卷
关键词：
Zr-based thin film metallic glass; Fretting; Biocorrosion; Biocompatibility; Dental applications; MECHANICAL-PROPERTIES; CORROSION-RESISTANCE; TITANIUM; WEAR; ALLOY; TI-6AL-4V; BEHAVIOR; TI; BIOCOMPATIBILITY; PROPERTY;
D O I：
10.1016/j.intermet.2017.03.016
中图分类号：
O64 [物理化学（理论化学）、化学物理学];
学科分类号：
070304 ; 081704 ;
摘要：
In this study, the application of a Ni-free Zr60.14Cu22.31Fe4.85Al9.7Ag3 thin film metallic glass (TFMG) was examined as an approach to retard the poor tribological properties of Ti-alloys for dental applications. The TFMGs were coated on biomedical Ti6Al4V substrate by single-target magnetron sputtering. The fretting resistance was assessed using a reciprocating tribo-tester against Si3N4 counterpart in air and in artificial saliva. Bio-corrosion resistance of TFMG-coated Ti6Al4V samples was tested via electrochemical polarizations and electrochemical impedance spectroscopy in artificial saliva. Biocompatibility of the TFMG was tested in vitro, in comparison with that of the Ti6Al4V alloy. The results showed that this TFMG not only possessed 1.8-2.8 times higher fretting resistance than the Ti6Al4V alloy under various tribological conditions, but also lower bio-corrosion rate and superior passive film. In-vitro assessments of cytotoxicity and cell adhesion indicated that the TFMG has no any cytotoxicity and well-flattened cell adhesion morphology, as good as the Ti6Al4V alloy. The present Ni-free Zr-based TFMG is expected to improve the lifetime and quality of biomedical implants or devices for dental applications. (C) 2017 Elsevier Ltd. All rights reserved.
引用
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页码：80 / 87
页数：8
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