THERMAL-BEHAVIOR OF CASTING INVESTMENT DURING SETTING

被引：2
|
作者：
WAKASA, K
YAMAKI, M
机构：
[1] Department of Dental Materials, Hiroshima University, School of Dentistry, Hiroshima
来源：
JOURNAL OF ORAL REHABILITATION | 1995年 / 22卷 / 05期
关键词：
D O I：
10.1111/j.1365-2842.1995.tb00787.x
中图分类号：
R78 [口腔科学];
学科分类号：
1003 ;
摘要：
The aim of this study was to examine the thermal reactions of silica-sol liquids for mixing investment powders using differential thermal analysis (DTA) and also the setting behaviour of the mixed powders using differential scanning calorimetry (DSC). The silica-sol liquids showed the appearance of vapourization (around 100 degrees C as a peak temperature) and combustion (200-300 degrees C) in DTA measurement. Mixed silica-sol investment exhibited the setting behaviour with an exotherm in the DSC measurement representing that greater peak time, setting time and heat in mixed investment than with gypsum-bonded investment.
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页码：371 / 375
页数：5
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