Effect of surface modification on the rheological behavior of concentrated, aqueous SiC suspensions

被引：22

作者：

Huang, Q ^{[1
]}

Chen, P ^{[1
]}

Gu, MY ^{[1
]}

Jin, YP ^{[1
]}

Sun, K ^{[1
]}

机构：

[1] Shanghai Jiao Tong Univ, State Key Lab MMCs, Shanghai 200030, Peoples R China

来源：

MATERIALS LETTERS | 2002年 / 56卷 / 04期

基金：

中国国家自然科学基金;

关键词：

SiC; surface modification; FT-IR; suspension; viscosity;

D O I：

10.1016/S0167-577X(02)00550-5

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Surface modification of SiC powder leached by deionized water, acid, and base leaching and the effect on the rheological behavior of concentrated aqueous SiC suspensions were investigated. The SiC powders were well dispersed irrespective of the surface treatment. However, the viscosity was affected by the surface treatment. The experimental results indicated that base leaching caused a lower viscosity. The reason of the leaching effect on viscosity was discussed. The influence of SiC oxidative thermal treatment was determined for SiC suspensions. It was found that calcination of the SiC powder was observed to result in partial oxidation of SiC to amorphous SiO2 and effectively reduced the viscosity of SiC suspensions. (C) 2002 Published by Elsevier Science B.V.

引用

页码：546 / 553

页数：8

共 20 条

[1]

Adar J, 1998, ADV CERAM MATER, V3, P231

[2] SURFACE-CHEMISTRY OF SILICON-NITRIDE POWDERS - ELECTROKINETIC BEHAVIOR AND ESCA STUDIES [J].

BERGSTROM, L ;

BOSTEDT, E .

COLLOIDS AND SURFACES, 1990, 49 (3-4) :183-197

[3] INTRINSIC EQUILIBRIUM-CONSTANTS OF ETA-SILICON CARBIDE OBTAINED FROM SURFACE-CHARGE DATA [J].

CEROVIC, LS ;

MILONJIC, SK ;

KOSTICGVOZDENOVIC, L .

JOURNAL OF THE AMERICAN CERAMIC SOCIETY, 1995, 78 (11) :3093-3096

[4]

CRIMP MJ, 1986, SCI CERAMIC CHEM PRO, P539

[5]

Ferreira J. M. F., 1992, Journal of the European Ceramic Society, V10, P59, DOI 10.1016/0955-2219(92)90119-X

[6] Reaction between SiC surface and aqueous solutions containing Al ions [J].

Hirata, Y ;

Miyano, K ;

Sameshima, S ;

Kamino, Y .

COLLOIDS AND SURFACES A-PHYSICOCHEMICAL AND ENGINEERING ASPECTS, 1998, 133 (03) :183-189

[7]

Laarz E., 1997, Key Engineering Materials, V132-1361, P285

[8]

LAN SP, 1995, PHILOS MAG B, V72, P323

[9] Colloidal processing of ceramics [J].

Lewis, Jennifer A. .

2000, American Ceramic Soc, Westerville (83)

[10]

Liden E., 1991, Journal of the European Ceramic Society, V7, P361, DOI 10.1016/0955-2219(91)90059-9

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