THE EFFECT OF ALIOVALENT DOPANTS ON CATION DIFFUSION IN TIO2-SNO2

被引：28

作者：

DROBECK, DL

VIRKAR, AV

COHEN, RM

机构：

来源：

JOURNAL OF PHYSICS AND CHEMISTRY OF SOLIDS | 1990年 / 51卷 / 08期

关键词：

diffusion; doping; kinetics; Phase transformation; TiO[!sub]2[!/sub]-SnO[!sub]2[!/sub;

D O I：

10.1016/0022-3697(90)90041-D

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

The effect of aliovalent dopants on the kinetics of phase separation in the TiO2-SnO2 system was examined. Cation diffusion coefficients were estimated from the kinetics of phase transformation assuming transformation to be diffusion-controlled. Divalent and trivalent cation dopants accelerated while pentavalent dopants suppressed the kinetics of phase transformation. Independent measurements also showed that trivalent dopants enhanced and pentavalent dopants suppressed interdiffusion coefficients. © 1990.

引用

页码：977 / 988

页数：12

共 24 条

[1]

[Anonymous], 1933, JPN J PHYS

[2]

BARBANEL VI, 1970, FIZ TVERD TELA+, V11, P2160

[3] CHEMICAL DIFFUSIVITY OF OXYGEN IN OXYGEN DEFICIENT RUTILE FOR COMPOSITIONS CLOSE TO TIO2 [J].