Processing of porous cordierite bodies by starch consolidation

被引：110

作者：

Alves, HM ^{[1
]}

Tari, G ^{[1
]}

Fonseca, AT ^{[1
]}

Ferreira, JMF ^{[1
]}

机构：

[1] Univ Aveiro, Dept Ceram & Glass Engn, P-3810 Aveiro, Portugal

来源：

MATERIALS RESEARCH BULLETIN | 1998年 / 33卷 / 10期

关键词：

ceramics; porous materials; structural materials; thermal conductivity; thermal expansion;

D O I：

10.1016/S0025-5408(98)00131-7

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Porous cordierite ceramics, formed from a mixture of ball clay, talc, alumina, and silica sand, were developed by a new direct consolidation method based on the properties of starch in water. The gelling capability of starch granules in warm water allows the transformation of a stable suspension into a rigid and stiff body that can be machined in the green state. Starch consolidation can be performed in nonporous molds, enabling materials with controlled porosity to be obtained by varying the starch content in the slip composition. The simplicity of the process as well as the low price of starches makes this new consolidation technique very promising from an industrial point of view. The results showed good agreement with the expected porosities of the cordierite sintered bodies, thus enabling the design of porous textures and tailoring of the material to applications. (C) 1998 Elsevier Science Ltd.

引用

页码：1439 / 1448

页数：10

共 16 条

[11]

MORRELL R, 1996, MAT SCI TECHNOLOGY A, V17, P1

[12] INTERACTION BETWEEN SOME OXIDES AND CORDIERITE [J].

NEGRO, A ;

MONTANARO, L ;

DEMAESTRI, PP ;

GIACHELLO, A ;

BACHIORRINI, A .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 1993, 12 (06) :493-498

[13]

RUTENBERG MW, 1979, HDB WATER SOLUBLE GU, P1

[14]

SACKS MD, 1984, AM CERAM SOC BULL, V63, P1510

[15]

SAGGIOWOYANSKY J, 1992, AM CERAM SOC B, V71, P16

[16] Influence of particle size distribution on colloidal processing of alumina [J].

Tari, G ;

Ferreira, JMF ;

Fonseca, AT ;

Lyckfeldt, O .

JOURNAL OF THE EUROPEAN CERAMIC SOCIETY, 1998, 18 (03) :249-253

← 1 2 →