Surface characterization of new non-toxic titanium alloys for use as biomaterials

被引：59
作者：
López, MF
Gutiérrez, A
Jiménez, JA
机构：
[1] CSIC, Ctr Nacl Invest Met, Dept Ingn Mat Degradac & Durabilidad, E-28040 Madrid, Spain
[2] Univ Miguel Hernandez, Dept Ciencia & Tecnol Mat, E-03202 Elche, Spain
来源：
SURFACE SCIENCE | 2001年 / 482卷
关键词：
X-ray photoelectron spectroscopy; corrosion; oxidation; alloys; polycrystalline surfaces;
D O I：
10.1016/S0039-6028(00)01005-0
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：
The surface oxide layers formed spontaneously through air contact on three new, non-toxic titanium alloys have been investigated by X-ray photoelectron spectroscopy (XPS). The alloys investigated were Ti-7Nb-6Al, Ti-13Nb-13Zr and Ti-15Zr-4Nb. The results show a large surface enrichment in Al oxides and Zr oxides, respectively, which indicates a considerable outwards diffusion of these two elements. However, an analysis of the Nb 3d spectra reveals that the formation of Nb oxides at the surface is less favoured than in the case of the other alloying elements. The XPS data show for all three Ti alloys a passive layer formed by a mixture of Ti. Al or Zr and Nb oxides. (C) 2001 Elsevier Science B.V. All rights reserved.
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收藏
页码：300 / 305
页数：6
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