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Plastic Deformation of Partially Stabilized Zirconia
Author(s) -
Lankford James
Publication year - 1983
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.1151-2916.1983.tb10577.x
Subject(s) - materials science , plasticity , cubic zirconia , deformation (meteorology) , tetragonal crystal system , diffusionless transformation , deformation bands , martensite , composite material , compression (physics) , stress (linguistics) , metallurgy , crystallography , crystal structure , microstructure , ceramic , chemistry , linguistics , philosophy
The results of room‐temperature compression experiments conducted on poly‐crystalline Mg partially stabilized zirconia are described. It is shown that, in addition to prefuilure axial microfracture, the material exhibits significant plasticity. This plasticity arises from deformation bands formed by cooperative martensitic transformation of melastable tetragonal precipitates; the deformation bands lead to significant surface rumpling. It is suggested that both stress‐ and strain‐induced martensitic transformations may be involved in the deformation process .