EFFECT OF CHLORINE ATMOSPHERE ON THE ANATASE RUTILE TRANSFORMATION

被引：95
作者：
GAMBOA, JA
PASQUEVICH, DM
机构：
[1] Centro Atömico Bariloche, Comisiöon Nacional de Energía Atömica, Bariloche, 8400, Rio Negro
来源：
JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1992年 / 75卷 / 11期
关键词：
D O I：
10.1111/j.1151-2916.1992.tb04367.x
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 anatase-rutile phase transformation in Ar-Cl2 atmosphere has been investigated by X-ray powder diffraction, thermogravimetry, and scanning electron microscopy. At 950-degrees-C the phase transformation in Ar-Cl2 atmosphere is about 300 times faster than in air. The growth of crystals of rutile from the vapor phase has been observed. We also determined that anatase powders with adsorbed chlorine rapidly transformed to rutile and underwent a color change from white to gray when they were heated in Ar atmosphere.
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页码：2934 / 2938
页数：5
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