CRYSTALLIZATION AND PHASE TRANSFORMATION IN TIO2-OPACIFIED PORCELAIN ENAMELS .2. COMPARISON OF THEORY WITH EXPERIMENT

被引:19
作者
EPPLER, RA
机构
[1] Ceramics Group, Glidden Durkee Division, SCM Corporation, Baltimore, Maryland
关键词
D O I
10.1111/j.1151-2916.1969.tb13349.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
Equations were developed to predict the concentrations of anatase and rutile in a TiO2opacified porcelain enamel as a function of the time and temperature of firing. These equations were applicable over the entire useful firing range: from 660° to 940°C and from 1 to 64 min. The constants in these equations yield solubility data as well as the appropriate rates. The solubility versus temperature curve is bimodal. The activation energies are 87.4 kcal/mol for inversion of anatase to rutile, 32.0 kcal/mol for crystallization of anatase, and 28.3 kcal/mol for crystallization of rutile. Copyright © 1969, Wiley Blackwell. All rights reserved
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页码:94 / &
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