Interfacial reactions and diffusion during the thermal oxidation of titanium in water vapour

被引：22

作者：

Galerie, A ^{[1
]}

Wouters, Y ^{[1
]}

Petit, JP ^{[1
]}

机构：

[1] Inst Natl Polytech Grenoble, Ecole Natl Super Electrochim & Electromet, F-38402 St Martin Dheres, France

来源：

HIGH TEMPERATURE CORROSION AND PROTECTION OF MATERIALS 4, PTS 1 AND 2 | 1997年 / 251-2卷

关键词：

titanium; water vapour; oxidation mechanisms;

D O I：

10.4028/www.scientific.net/MSF.251-254.113

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

The oxidation at 850 degrees C of metallic titanium is faster in water vapour than in oxygen. This reaction proceeds by subtitutional hydroxide ion diffusion through TiO2 from the gas-oxide interface to the oxide-metal interface. Atomic hydrogen is produced at this interface and mainly dissolves in the metallic subtrate, stabilizing the beta-Ti phase. Oxygen rapid transport in this phase induces the formation, at least at the beginning of the reaction, of lower valence oxides (Ti3O5, Ti2O3) at the metal-scale interface.

引用

页码：113 / 118

页数：6