MECHANICAL-PROPERTIES OF SILICA XEROGELS

被引：4
作者：
ABRAMOFF, B
KLEIN, LC
机构：
[1] Cermics Department, Rutgers, State University of New Jersey, Piscataway, New Jersey
来源：
JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1991年 / 74卷 / 06期
关键词：
XEROGELS; SILICA; BENDING; STRENGTH; STORAGE;
D O I：
10.1111/j.1151-2916.1991.tb04134.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：
Strengths have been measured for silica xerogels using four-point bending. The silica xerogels studied are microporous with open porosity of 53 vol%. Strengths were measured on fresh samples, samples which had been outgassed at 250-degrees-C, samples which were exposed to ambient conditions for 2 d, and samples stored in ethanol. Fresh samples had strengths about 20 MPa which increased to 32 MPa with outgassing but returned to 20 MPa after exposure. The loss of strength could be arrested, but not reversed, by storing the samples in ethanol.
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页码：1469 / 1471
页数：3
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