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Ambient and High‐Temperature Stable Fracture Tests in Ceramics: Applications to Yttria‐Partially‐Stabilized Zirconia
Author(s) -
Pastor Jose Ygnacio,
Planas Jaime,
Elices Manuel
Publication year - 1993
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.1993.tb04041.x
Subject(s) - materials science , fracture toughness , ceramic , composite material , cubic zirconia , yttria stabilized zirconia , fracture (geology) , extensometer , brittleness , displacement (psychology) , psychology , psychotherapist
A new technique that provides stable fracture tests in brittle ceramic materials at room and at high temperature is presented. This technique uses the crack mouth opening displacement signal from a laser extensometer to feed the servo control of a hydraulic testing machine. In this way it is possible to obtain—in addition to the fracture toughness—the fracture energy and the R ‐curve, in a single test.