Preparation and Microstructure Study of Borosilicate Coatings Produced by Sol-Gel

被引：9

作者：

Pellegri, N. ^{[1
]}

de Sanctis, O. ^{[1
]}

Duran, A. ^{[2
]}

机构：

[1] UNR, IFIR, Lab Mat Ceram, RA-2000 Rosario, Santa Fe, Argentina

[2] CSIC, Inst Ceram & Vidrio, Arganda Del Rey 28500, Madrid, Spain

来源：

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

关键词：

borosilicate coatings; solution parameters; humidity conditions; phase separation process;

D O I：

10.1007/BF00486301

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：

Borosilicate coatings in the systems (100-x)SiO2-xB(2)O(3) (x = 20, 30) and 75SiO(2)-20B(2)O(3)-5Na(2)O have been obtained using the dip-coating procedure. Stable solutions were prepared from TEOS and trimethylborate, H2O/TEOS ratios being changed from 2 to 6. Sodium acetate in aqueous solution was used as Na2O precursor. Coatings were prepared in an airtight glove-chamber with humidity and temperature control. Good and transparent films were obtained only for RH < 20%. Microstructure evolution and phase separation phenomena were investigated by TEM studying their dependence on the water content of the solution, temperature and time of the heat treatment and thickness of the coatings. A comparison with similar melted glasses and bulk glasses prepared by sol-gel has been also established.

引用

页码：519 / 523

页数：5

共 12 条

[1] ON SPINODAL DECOMPOSITION [J].

CAHN, JW .

ACTA METALLURGICA, 1961, 9 (09) :795-801

[2] LATER STAGES OF SPINODAL DECOMPOSITION AND BEGINNINGS OF PARTICLE COARSENING [J].

CAHN, JW .

ACTA METALLURGICA, 1966, 14 (12) :1685-+

[3] DEPENDENCE OF THICKNESS ON THE WITHDRAWAL SPEED FOR SIO2 AND TIO2 COATINGS OBTAINED BY THE DIPPING METHOD [J].

GUGLIELMI, M ;

COLOMBO, P ;

PERON, F ;

ESPOSTI, LMD .

JOURNAL OF MATERIALS SCIENCE, 1992, 27 (18) :5052-5056

[4] THE THICKNESS OF SOL-GEL SILICA COATINGS OBTAINED BY DIPPING [J].

GUGLIELMI, M ;

ZENEZINI, S .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1990, 121 (1-3) :303-309

[5] MISCIBILITY GAPS IN ALKALI-SILICATE BINARIES - DATA AND THERMODYNAMIC INTERPRETATION [J].

HALLER, W ;

BLACKBURN, DH ;

SIMMONS, JH .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1974, 57 (03) :120-126

[6]

MUKHERJEE SP, 1976, J MATER SCI, V11, P341, DOI 10.1007/BF00551446

[7] CRYSTALLIZATION OF GELS AND GLASSES MADE FROM HOT-PRESSED GELS [J].

PHALIPPOU, J ;

PRASSAS, M ;

ZARZYCKI, J .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1982, 48 (01) :17-30

[8] VISCOUS-FLOW IN GLASS DURING PHASE SEPARATION [J].

SIMMONS, JH ;

MILLS, SA ;

NAPOLITANO, A .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1974, 57 (03) :109-117

[9]

Togue N., 1984, J NONCRYST SOLIDS, V63, P81

[10] PREPARATION OF B2O3-SIO2 AND ZNO-B2O3-SIO2, MGO-B2O3-SIO2 GLASS-FILMS BY THE SOL-GEL METHOD [J].

TOHGE, N ;

MINAMI, T .

JOURNAL OF NON-CRYSTALLINE SOLIDS, 1989, 112 (1-3) :432-436

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