Synthesis of nanocrystalline titania films by micro-arc oxidation

被引：89

作者：

Han, Y

Hong, SH

Xu, KW

机构：

[1] Seoul Natl Univ, Sch Mat Sci & Engn, Kwanak Gu, Seoul 151742, South Korea

[2] Xi An Jiao Tong Univ, State Key Lab Mech Behav Mat, Xian 71004, Peoples R China

来源：

MATERIALS LETTERS | 2002年 / 56卷 / 05期

基金：

中国国家自然科学基金;

关键词：

micro-arc oxidation; titania film; nanocrystalline; adhesive strength;

D O I：

10.1016/S0167-577X(02)00606-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Nanocrystalline titania films were synthesized by micro-arc oxidation of titanium substrates in an electrolytic solution using a pulsed power supply. X-ray diffraction (XRD) indicated that the deposited films consisted of a high crystalline anatase phase. Field emission scanning electron microscopy (FESEM) showed that the films were macro-porous with 1-2 mum pores and the matrix was composed of 10-20 nm grains. The adhesion-tension test showed that the films had an adhesive strength of 20 +/- 2MPa. Such firmly adhesive, porous and nanocrystalline anatase films are expected to have significant applications as orthopaedic/dental implants and catalysts. (C) 2002 Elsevier Science B.V. All rights reserved.

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页码：744 / 747

页数：4

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