B.S., Majumdar and A H , Yegneshwaran and P K , Rohtagi and Dr., A H Yegneshwaran (1984) Strength and fracture behaviour of metal/matrix particulate composites. Materials Science and Engineering A, 68. pp. 85-96. ISSN 0921-5093

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Abstract

The fracture strengths of various metal matrix particulate composites prepared by a liquid metallurgy technique were analysed. Data on composites from other investigations in which a powder metallurgy or precipitation technique was employed were also included for comparison. The particulate composites were categorized and micromechanical modelling was carried out with due emphasis on fracture mechanisms. It was found that the strength versus volume fraction relation follows a two-thirds power law in the aluminium-graphite system. In the AlAl2O3 system the classical strengthening theory of short-fibre-reinforced composites was found to hold good. In aluminium-glass and AlSiC systems the experimentally determined strengths are higher than the theoretical estimates, while in aluminium-zircon and dual-phase steels the law of mixtures is obeyed. The important roles played by particle-matrix bonding and microstructure are emphasized with a view to improving the development of composites.

Item Type:	Article
Subjects:	Lightweight Materials
Divisions:	UNSPECIFIED
Depositing User:	Mr. B.K. Prasad
Date Deposited:	13 Aug 2013 06:53
Last Modified:	22 Apr 2014 08:54
URI:	http://ampri.csircentral.net/id/eprint/302

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