The Sintering of Silica Aerogels Studied by Thermoporometry

被引：20

作者：

Woignier, T. ^{[1
]}

Phalippou, J. ^{[1
]}

Quinson, J. F. ^{[2
]}

Pauthe, M. ^{[2
]}

Lacroix, M. Repellin ^{[2
]}

Scherer, G. W. ^{[2
]}

机构：

[1] Univ Montpellier 2, LSMV, F-34095 Montpellier, France

[2] Univ Lyon 1, Lab Chim Appl & Genie Chim, F-69622 Villeurbanne, France

来源：

JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY | 1994年 / 2卷 / 1-3期

关键词：

thermoporometry; densification of aerogels; PDA: Partially densified aerogels; impregnation;

D O I：

10.1007/BF00486256

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 evolution of the texture of silica aerogels during sintering is studied by thermoporometry for both neutral and base catalysed materials. During the densification the macroporous volume drops and the analysis of the mesopore size distribution evolution shows that the collapse of the smallest mesopores is responsible for the macropore volume transformation. However, corrections of the measured volumes are necessary to characterize the most compliant materials.

引用

页码：277 / 281

页数：5

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