Article ID Journal Published Year Pages File Type
1474909 Journal of the European Ceramic Society 2014 6 Pages PDF
Abstract

A new fracture toughness test for discs and plates is presented, which can be applied to small specimens (>5 mm diameter). A semi-elliptical surface crack is made into the centre of the top plane using a Knoop intender. Then the layer containing the plastically deformed zone is ground off and the crack is loaded in tension using the Ball-on-3-Balls test.Applied to five different ceramic materials the results gained with the new method agree well with those of standardised methods.

Related Topics
Physical Sciences and Engineering Materials Science Ceramics and Composites
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