GROWTH OF ANATASE (TIO2) CRYSTALS BY CHEMICAL-TRANSPORT REACTIONS WITH HBR AND HCL

被引：14

作者：

IZUMI, F

KODAMA, H

ONO, A

机构：

[1] National Institute for Researches in Inorganic Materials, Niihari-gun, Ibaraki, 300-31, Namiki 1-1, Sakura-mura

来源：

JOURNAL OF CRYSTAL GROWTH | 1979年 / 47卷 / 02期

关键词：

D O I：

10.1016/0022-0248(79)90234-3

中图分类号：

O7 [晶体学];

学科分类号：

0702 ; 070205 ; 0703 ; 080501 ;

摘要：

The influence of Group IIIB metals on the polymorphic crystallization of TiO2 from vapor has been investigated. When highly pure rutile was used as a starting material, TiO2 was transported to colder zones of closed tubes by means of HBr and HCl to give only rutile. By contrast, the addition of a small amount of Al2O3, Ga2O3, or In2O3 to the starting material produced anatase crystals. Al3+ was incorporated into growing anatase crystals far more readily than Ga3+ and In3+. Two possible mechanisms have been proposed for the metastable formation of anatase in the presence of the foreign metals. © 1979.

引用

页码：139 / 144

页数：6

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