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Crack Branching in Transformation‐Toughened Zirconia
Author(s) -
KIRCHNER H.P.,
GRUVER R.M.,
SWAIN M. V.,
GARVIE R. C.
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.tb10319.x
Subject(s) - materials science , branching (polymer chemistry) , cubic zirconia , composite material , fracture mechanics , stress intensity factor , ceramic
Crack propagation and branching were investigated in calcia partially stabilized zirconia aged at 1300°C for various times. The crack‐branching radii were measured and used to calculate the apparent stress intensity factors at crack branching ( K 8 ) which increase with increasing aging time. The K B /K IC ratios increased with aging time with a maximum of 5.3. This maximum ratio is much greater than the ratios previously observed for ceramics.