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Evaluation of Fracture Toughness Determination Methods as Applied to Ceria‐Stabilized Tetragonal Zirconia Polycrystal
Author(s) -
Matsumoto Roger L. K.
Publication year - 1987
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.1151-2916.1987.tb04921.x
Subject(s) - materials science , fracture toughness , indentation , cubic zirconia , composite material , vickers hardness test , monoclinic crystal system , yield (engineering) , toughening , tetragonal crystal system , toughness , phase (matter) , microstructure , ceramic , crystallography , crystal structure , chemistry , organic chemistry
A comparison of several fracture toughness determination methods based upon the use of cracks emanating from a Vickers hardness indent to the bulk techniques of double cantilever beam and single edge notch beam is made in a tough zirconia material which shows little evidence of transformation toughening based on the amount of monoclinic phase detected by XRD on ground surfaces. Results indicate that some indentation methods yield values close to those obtained by bulk methods, in contrast to results obtained on zirconia materials which show large effects of transformation toughening.