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Grain Boundaries, Fracture, and Heat Treatment of Commercial Partially Stabilized Zirconia
Author(s) -
Rice R. W.,
Mckinney K. R.,
Ingel R. P.
Publication year - 1981
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.1151-2916.1981.tb15905.x
Subject(s) - fractography , grain boundary , transgranular fracture , materials science , crystallite , fracture (geology) , cubic zirconia , stoichiometry , grain size , composite material , metallurgy , ceramic , intergranular fracture , microstructure , chemistry , organic chemistry
Studies of commercial PSZ show that fractography is quite feasible. Although the fracture was predominately transgranular, it commonly originated from grain‐boundary facets. This behavior indicates that strengths are controlled by energies less than those for polycrystalline fracture and are limited by grain boundaries. Appropriate heat treatment under reducing conditions gave strengths up to ≅ 600 MPa; Stoichiometry appears to be important .