Textural properties and thermal stability of silica-zirconia aerogels

被引：8

作者：

Pirard, R ^{[1
]}

Bonhomme, D ^{[1
]}

Kolibos, S ^{[1
]}

Pirard, JP ^{[1
]}

Lecloux, A ^{[1
]}

机构：

[1] SOLVAY DEUTSCHLAND,D-30173 HANNOVER,GERMANY

来源：

JOURNAL OF SOL-GEL SCIENCE AND TECHNOLOGY | 1997年 / 8卷 / 1-3期

关键词：

aerogel; silica-zirconia; synthesis; sintering; pore distribution;

D O I：

10.1023/A:1018306728864

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：

A solution of zirconium propoxide stabilized by methoxyethanol is mixed with silicon ethoxide in ethanol and hydrolyzed by small amounts of neutral, basified or acidified water. The obtained silica-zirconia gel is dried in supercritical conditions, yielding an aerogel. The modifications of the aerogel porous texture as a function of chemical composition and thermal treatment are investigated using adsorption-desorption isotherms analysis, mercury porosimetry, electron-microscopy and X-ray diffraction.

引用

页码：831 / 836

页数：6

共 14 条

[1]

BRODSKY CJ, 1995, J NON-CRYST SOLIDS, V186, P88

[2] INVESTIGATION OF THE THERMAL DISSOCIATION, REASSOCIATION, AND SYNTHESIS OF ZIRCON [J].

CURTIS, CE ;

SOWMAN, HG .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1953, 36 (06) :190-198

[3]

FRANCOIS E, 1992, J NONCRYST SOLIDS, V147, P389

[4] AEROGELS AND THEIR APPLICATIONS [J].

FRICKE, J .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1992, 147 :356-362

[5] Ethanol-water system - Vapor-liquid properties at high pressures [J].

Griswold, J ;

Haney, JD ;

Klein, VA .

INDUSTRIAL AND ENGINEERING CHEMISTRY, 1943, 35 :701-704

[6]

LEGRAND F, Patent No. 263544

[7]

LEGRAND F, Patent No. 238103

[8]

LEGRAND F, Patent No. 286155

[9] A THERMAL STUDY OF THE SIO2-ZRO2 SOL-GEL SYSTEM [J].

LOPEZ, T ;

ASOMOZA, M ;

GOMEZ, R .

THERMOCHIMICA ACTA, 1993, 223 :233-240

[10] SOL-GEL FORMATION OF SILICA ZIRCONIA GLASSES [J].

PALLADINO, M ;

PIRINI, F ;

BEGHI, M ;

CHIURLO, P ;

COGLIATI, G ;

COSTA, L .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1992, 147 :335-339

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