ISSN 0004-881X

PRECISION CAST SIALON-BONDED SILICON CARBIDE FOR MOLTEN METAL REFRACTORY APPLICATIONS

by G.V. White^*, C.M. Sheppard^*, M. Bowden^*, M. Ryan^*, G.C. Barris^*, M. Cooper^# and C. Yu Chen^#
*Industrial Research Limited, Gracefield Rd, Lower Hutt 5040, New Zealand
^#Pyrotek Products Limited, Cryers Rd., East Tamaki, Auckland

Abstract

A crack initiated perpendicular to a stiffness gradient deflects as it propagates due to inherent mode mixity. A model experiment, finite element modelling and an analytical model are used to shown that when crack bridging occurs that the extent of crack deflection may be reduced.

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