Phani, Kalyan Kumar (1996) Porosity-dependence of elastic properties and ultrasonic velocity in polycrystalline alumina - A model based on cylindrical pores. Journal of Materials Science, 31 (1). pp. 262-266. ISSN 0022-2461

PDF - Published Version Restricted to Registered users only Download (435Kb) | Request a copy

Abstract

Effective elastic moduli and ultrasonic velocity of materials having aligned cylindrical pores have been derived using a series expansion in terms of the difference between the upper and lower bounds of elastic moduli obtained by the variational method. The theoretical results for polycrystalline alumina agree well with the experimental data, confirming the suggestion of previous researchers that a matrix containing parallel cylindrical pores orientated perpendicular to the applied stress, provide a better model than a spherical one in describing the porosity-dependence of elastic moduli in sintered specimens.

Item Type:	Article
Subjects:	Engineering Materials
Divisions:	UNSPECIFIED
Depositing User:	Bidhan Chaudhuri
Date Deposited:	30 Jul 2012 10:13
Last Modified:	23 Mar 2016 13:14
URI:	http://cgcri.csircentral.net/id/eprint/1695

Actions (login required)

View Item