Densification mechanisms during hot pressing of ZrB2-20 vol.% SiC composite

Patel, Manish and Singh, V and Reddy, JJ and Prasad, Bhanu VV and Jayaram, Vikram (2013) Densification mechanisms during hot pressing of ZrB2-20 vol.% SiC composite. In: SCRIPTA MATERIALIA, 69 (5). pp. 370-373.

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Abstract

The dominant densification mechanisms for hot pressing of ZrB2-20 vol.% SiC composite at different hot-pressing temperatures and pressures was identified. The dominant densification mechanisms were found to change over a very short temperature range. For hot pressing at 1700 degrees C, the dominant densification mechanism was found to be mechanically driven particle fragmentation and rearrangement only, whereas at 1850 degrees C a plastic flow mechanism started to become dominant after initial particle fragmentation and rearrangement. At 2000 degrees C, the dominant mechanism changed from plastic flow to grain boundary diffusion. (c) 2013 Acta Materialia Inc. Published by Elsevier Ltd. All rights reserved.

Item Type:	Journal Article
Publication:	SCRIPTA MATERIALIA
Publisher:	PERGAMON-ELSEVIER SCIENCE LTD
Additional Information:	Copyright of this article is belongs PERGAMON-ELSEVIER SCIENCE LTD
Keywords:	Hot pressing; Mechanism; Plastic flow; Diffusion
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	23 Sep 2013 12:09
Last Modified:	23 Sep 2013 12:09
URI:	http://eprints.iisc.ac.in/id/eprint/47284

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