Characterization of cellular ceramics for high-temperature applications

被引：22

作者：

Acchar, W. ^{[1
,2
,3
]}

Ramalho, E. G. ^{[2
]}

Souza, F. B. M. ^{[2
]}

Torquato, W. L. ^{[3
]}

Rodrigues, V. P. ^{[4
]}

Innocentini, M. D. M. ^{[4
]}

机构：

[1] Univ Fed Rio Grande do Norte, Dept Phys, BR-59072970 Natal, RN, Brazil

[2] Univ Fed Rio Grande do Norte, Pos Grad Program Mech Engn, BR-59072970 Natal, RN, Brazil

[3] Univ Fed Rio Grande do Norte, Pos Grad Program Sci & Mat Engn, BR-59072970 Natal, RN, Brazil

[4] Univ Ribeirao Preto, UNAERP, Course Chem Engn, Ribeirao Preto, SP, Brazil

来源：

JOURNAL OF MATERIALS SCIENCE | 2008年 / 43卷 / 19期

关键词：

D O I：

10.1007/s10853-008-2585-2

中图分类号：

T [工业技术];

学科分类号：

08 ;

摘要：

Polymeric sponge replication technique is the most used process to obtain ceramic foams with a cellular structure for filtration applications. This technique is based on an impregnation of a polymeric sponge with ceramic slurry, removal by squeezing, followed by burning out polymer and high temperature sintering. Ceramic filters must present high permeability and strength. However, these parameters are influenced in different ways by the processing method and the consequent cellular structure. In this work the relationship between permeability and strength has been investigated for 10- and 40-ppi (pores per linear inch) Al2O3-ZrO2 filter materials. Characterization included the evaluation of the permeability and strength as well as the microstructural analyses of the fracture surface.

引用

页码：6556 / 6561

页数：6

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