ELASTIC PROPERTIES OF POROUS SILICA DERIVED FROM COLLOIDAL GELS

被引：39

作者：

ASHKIN, D

HABER, RA

WACHTMAN, JB

机构：

[1] Center for Ceramics Research, Rutgers University, Piscataway, New Jersey

来源：

JOURNAL OF THE AMERICAN CERAMIC SOCIETY | 1990年 / 73卷 / 11期

关键词：

elasticity; gels; porosity; silica; Young's modulus;

D O I：

10.1111/j.1151-2916.1990.tb06464.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：

The elastic properties were determined for gel‐derived vitreous silica sintered from a relative density of 0.15 to full density. The gels were made from colloidal silica, potassium soluble silicate, and formamide. The soluble silicate was found to reinforce the gel network during gelation and its concentration relative to the colloidal silica affected Young's modulus for samples of relative density, 0.15 to 0.6 Young's modulus varied from 300 to 700 MPa at a relative density of 0.15 as a function of the soluble silicate concentration. Young's modulus at full density was measured to be 72.6 GPa. Poisson's ratio was found to be a function of relative density. Copyright © 1990, Wiley Blackwell. All rights reserved

引用

页码：3376 / 3381

页数：6

共 35 条

[1]

[Anonymous], 1979, CHEM SILICA

[2] PREPARATION AND SINTERING OF COLLOIDAL SILICA POTASSIUM SILICATE GELS [J].

CAO, WQ ;

GERHARDT, R ;

WACHTMAN, JB .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1988, 71 (12) :1108-1113

[3]

Duckworth W., 1953, J AM CERAM SOC, V36, P68, DOI DOI 10.1111/11151-2916.1953.TB12838.X

[4] THE DETERMINATION OF THE ELASTIC FIELD OF AN ELLIPSOIDAL INCLUSION, AND RELATED PROBLEMS [J].

ESHELBY, JD .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL AND PHYSICAL SCIENCES, 1957, 241 (1226) :376-396

[5]

Gent AN, 1963, RUBBER CHEM TECHNOL, V36, P597, DOI [10.5254/1.3539591, DOI 10.5254/1.3539591]

[6]

Gibson L.J., 1988, CELLULAR SOLIDS

[7] THE MECHANICS OF 3-DIMENSIONAL CELLULAR MATERIALS [J].

GIBSON, LJ ;

ASHBY, MF .

PROCEEDINGS OF THE ROYAL SOCIETY OF LONDON SERIES A-MATHEMATICAL PHYSICAL AND ENGINEERING SCIENCES, 1982, 382 (1782) :43-&

[8]

Green D. J., 1988, MATER RES SOC S P, V119, P43

[9]

GREEN DJ, 1990, CERAM TRANS, V7, P345

[10]

GREEN DJ, 1986, MECHANICAL BEHAVIOR, V8, P39

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