Kayal, Nijhuma and Dey, Atanu and Chakrabarti, Omprakash (2012) Synthesis of mullite bonded porous SiC ceramics by a liquid precursor infiltration method: Effect of sintering temperature on material and mechanical properties. Materials Science and Engineering A-Structural Materials Properties Microstructure and Processing, 556. pp. 789-795. ISSN 0921-5093

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Abstract

Mullite bonded porous SiC ceramics were synthesized by infiltrating a SIC porous compact with a liquid precursor of mullite followed by sintering at 1300-1500 degrees C in air. Different volume fractions (0-0.26%) of petroleum coke powder were used as pore former. SIC particles bonded by mullite and oxidation derived SiO2 formed an interconnected porous network. Porosity varied in a range of 31-48 vol%. The flexural strength and the Young's modulus of the porous ceramics varied in the ranges of 19.3-43.8 MPa and 16.6-42.9 GPa respectively and the mechanical property-porosity relationship could be explained by the minimum solid area (MSA) model. (c) 2012 Elsevier B.V. All rights reserved.

Item Type:	Article
Uncontrolled Keywords:	Mullite bond; Infiltration; Porous SIC; Material property; Mechanical property
Subjects:	Engineering Materials
Divisions:	Non-Oxide Ceramics & Composites
Depositing User:	Bidhan Chaudhuri
Date Deposited:	16 Jan 2013 07:34
Last Modified:	16 Jan 2013 07:34
URI:	http://cgcri.csircentral.net/id/eprint/1845

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