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Tetragonality of Nanosized 3Y‐TZP Powders
Author(s) -
Luo Jie,
Stevens Ronald
Publication year - 1999
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.1151-2916.1999.tb02017.x
Subject(s) - calcination , cubic zirconia , crystallite , tetragonal crystal system , materials science , chemical engineering , phase (matter) , mineralogy , hydroxide , metallurgy , ceramic , chemistry , catalysis , biochemistry , organic chemistry , engineering
The tetragonality of small zirconia particles has been established by accurately measuring the tetragonality ratio ( c/a ) of decomposed zirconyl hydroxide, which was then calcined over a range of temperatures to produce a range of average‐sized zirconia crystallite particles. The zirconia initially crystallized as a finely divided cubic phase, which, as the calcination temperature increased, gradually developed an increase in c/a. At temperatures >800°C, the c/a value reached a critical value; thereafter, the tetragonal symmetry was stabilized.