劣化したステアタイトの過熱異状伸縮特性とその化学組成について : ステアタイトの劣化現象に関する研究 (第1報)

概要

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Although the studies of steatite body were made by a number of investigators, those on the basic problem of deterioration phenomena are only a few. The author has carried out the experiments on the expansion characteristics of steatite with the following results:(1) The deteriorated steatite showed two abnormal expansions in the temperature range 950°-1350°C, i.e., the first at 950°-1200°, and the second at 1200°-1350°C.(2) The steatite without deterioration showed only one abnormal expansion at 1200°-1350°C.This difference in the expansion characteristics is attributed by the author to the occurence of devitrification in the glassy phase formed during the maturing process.
社団法人日本セラミックス協会の論文
1959-05-01