Fabrication, properties, and cytocompatibility of ZrC film on electropolished NiTi shape memory alloy

被引：28

作者：

Chu, C. L. ^{[1
,2
]}

Ji, H. L. ^{[1
,2
]}

Yin, L. H. ^{[3
]}

Pu, Y. P. ^{[3
]}

Lin, P. H. ^{[1
,2
]}

Chu, Paul K. ^{[4
]}

机构：

[1] Southeast Univ, Sch Mat Sci & Engn, Nanjing 211189, Peoples R China

[2] Southeast Univ, Jiangsu Key Lab Adv Met Mat, Nanjing 211189, Peoples R China

[3] Southeast Univ, Sch Publ Hlth, Nanjing 210096, Peoples R China

[4] City Univ Hong Kong, Dept Phys & Mat Sci, Hong Kong, Hong Kong, Peoples R China

来源：

MATERIALS SCIENCE & ENGINEERING C-MATERIALS FOR BIOLOGICAL APPLICATIONS | 2011年 / 31卷 / 02期

关键词：

NiTi shape memory alloy; ZrC film; Mechanical properties; Cytocompatibility; MECHANICAL-PROPERTIES; THIN-FILMS; SURFACE; MICROSTRUCTURE; TEMPERATURE; DEPOSITION; TITANIUM; IMPLANTS; BEHAVIOR; GROWTH;

D O I：

10.1016/j.msec.2010.10.023

中图分类号：

TB3 [工程材料学]; R318.08 [生物材料学];

学科分类号：

082905 [生物质能源与材料]; 100103 [病原生物学];

摘要：

The microstructural characteristics, mechanical properties, and cytocompatibility of ZrC films deposited on electropolished NiTi shape memory alloy (SMA) by magnetron sputtering are investigated by scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), X-ray diffraction (XRD), nanoindentation, and MTT test The deposition rate of the ZrC film is smaller than the pure Zr film. Although ZrC is the only phase in the film, the pure ZrC film with small oxygen content is non-stoichiometric. The hardness and modulus increase initially with larger nanoindentation depths, reach maximum values, and then gradually decrease afterwards as a result of the composite effects of the ZrC film and NiTi substrate. Deposition of the ZrC film promotes proliferation of fibroblasts revealing enhanced cytocompatibility compared to uncoated NiTi. (C) 2010 Elsevier B.V. All rights reserved.

引用

页码：423 / 427

页数：5

共 22 条

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