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Structural Transformation in Cubic Zirconia
Author(s) -
Usha Devi Subba Rao,
Ming Li Chung,
Manghnani Murli H.
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.tb05747.x
Subject(s) - orthorhombic crystal system , materials science , diffraction , cubic zirconia , phase (matter) , lattice constant , cubic crystal system , diamond cubic , lattice (music) , x ray crystallography , crystal structure , diamond anvil cell , diamond , crystallography , analytical chemistry (journal) , chemistry , optics , composite material , ceramic , physics , organic chemistry , chromatography , acoustics
The structure of CaO‐stabilized cubic zirconia has been investigated by X‐ray diffraction at high temperatures and pressures up to 1000°C and ∼35 GPa, using a diamond‐anvil cell interfaced with aYAG laser heating system. At ∼1000°C and 15 GPa, the cubic phase transforms directly into an orthorhombic phase with the PbCl 2 structure. This high‐pressure phase is quenchable. The zero‐pressure lattice parameters are a=0.3327±0.0004 nm, b=0.5566±0.0003 nm, and c =0.6487±0.0005 nm, the volume change being 10.5%.