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Research Article Open access CC BY 4.0

Review on Oxide Bonded Porous SiC Ceramics: Processing, Properties and Applications

Dulal Das, Nijhuma Kayal

Journal of Materials Science Research and Reviews · pp. 42–66 · Published 24 Dec 2018

10.9734/jmsrr/2019/v2i132

Abstract

Recently the use of porous SiC ceramics is increasing tremendously for various industrial applications due to its excellent properties. Various processing techniques are tried to develop porous SiC ceramics. The fabrication of porous SiC ceramics by an oxidation bonding technique offers several advantages like good oxidation resistance because of air sintering of the ceramics, low sintering temperature, cost effectiveness and easy control over the porosity and other properties of the resultant ceramics. This review deals with processing strategies of oxidation bonding technique. The effect of pore former, powder size, sintering temperature and sintering additives on the properties of the oxide bonded porous SiC ceramics are discussed in detail. The available literatures are thoroughly reviewed with emphasis on mechanical properties, thermal shock resistance properties, gas permeability behavior and separation of particulate from off gas. This review has also enlightened future scope on processing of oxide bonded porous SiC and its usage in various applications.

Porous SiC oxide bond mechanical properties gas permeabilty thermal shock resistance

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