Residual strength of hot pressed zirconium diboride (ZrB2) after exposure to high temperatures

Patel, Manish and Reddy, JJ and Prasad, Bhanu VV and Subrahmanyam, J and Jayaram, Vikram (2012) Residual strength of hot pressed zirconium diboride (ZrB2) after exposure to high temperatures. In: Materials Science and Engineering: A, 535 . pp. 189-196.

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Abstract

ZrB2 with different amounts of B4C additive (0-5 wt.%) has been hot pressed at 2000 degrees C and 25 MPa for 1 h. By addition of B4C, density as well as micro-hardness increased. For lower B4C content (0.5 and 1 wt.%), hot pressed ZrB2 shows considerable improvement in flexural strength after exposure in air at 1000 C for 5 h, while higher B4C content (3 and 5 wt.%) leads to marginal or no improvement. For any content of B4C, flexural strength after exposure in air at 1500 degrees C for 5 h is lower than as-hot pressed ZrB2. (C) 2011 Elsevier B.V. All rights reserved.

Item Type:	Journal Article
Publication:	Materials Science and Engineering: A
Publisher:	Elsevier Science
Additional Information:	Copyright of this article belongs to Elsevier Science.
Department/Centre:	Division of Mechanical Sciences > Materials Engineering (formerly Metallurgy)
Date Deposited:	18 Apr 2012 05:19
Last Modified:	18 Apr 2012 05:19
URI:	http://eprints.iisc.ac.in/id/eprint/44309

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