Dey, Atanu and Kayal, Nijhuma and Chakrabarti, Omprakash and Innocentini, Murilo D M and Chacon, Welton S and Coury, Jose R (2013) Evaluation of air permeation behavior of porous SiC ceramics synthesized by oxidation-bonding technique. International Journal of Applied Ceramic Technology, 10 (6). pp. 1023-1033. ISSN 1546-542X

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Abstract

Porous SiC ceramics were synthesized by oxidation bonding of compacts of commercial -SiC powder at 1300 degrees C. Different volume fractions of petroleum coke powder were used for variation of porosity of ceramics from 36% to 56%. The material exhibited variations of pore size from 3 to 15m, flexural strength from 5.5 to 29.5 MPa, and elastic modulus from 3.3 to 27.6 GPa. Air permeation behavior was studied at 26-650 degrees C. At room temperature Darcian (k(1)) and non-Darcian (k(2)) permeability parameters vary from 1.64 to 18.42x10(-13)m(2) and 0.58 to 2.95x10(-7)m, respectively. Temperature dependence of permeability was explained from structural changes occurring during test conditions.

Item Type:	Article
Subjects:	Engineering Materials
Divisions:	Non-Oxide Ceramics & Composites
Depositing User:	Bidhan Chaudhuri
Date Deposited:	05 Feb 2014 11:40
Last Modified:	05 Feb 2014 11:40
URI:	http://cgcri.csircentral.net/id/eprint/2469

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