Crystal structures of two orthorhombic zirconias
- Australian Nuclear Science and Technology Organization, Menai, New South Wales 2234 (AU)
- Division of Science and Technology, Griffith Univ., Nathan, Queensland 4111 (AU)
- Osaka Univ. (Japan)
The crystal structures of orthorhombic zirconias formed by cooling magnesia-partially-stabilized zirconia (Mg-PSZ) (space group Pbc2{sub 1}) and by quenching zirconia powder from 600{degrees} C and 6 GPa (space group Pbca) are compared and contrasted. It is demonstrated that the two structures are easily distinguished by the neutron powder diffraction techniques used to establish them. The occurrence of two distinct phases is hence proved. Structural relationships between these two phases and also with the in situ high-pressure structure proposed from x-ray diffraction (XRD) are discussed. In this paper the three structures are virtually indistinguishable by XRD and so the structure of the high-pressure form in situ is considered to remain unknown.
- OSTI ID:
- 5845608
- Journal Information:
- Journal of the American Ceramic Society; (United States), Journal Name: Journal of the American Ceramic Society; (United States) Vol. 74:9; ISSN JACTA; ISSN 0002-7820
- Country of Publication:
- United States
- Language:
- English
Similar Records
Pro- and subeutectoid behavior of the tetragonal phase in magnesia-partially-stabilized zirconia
Structural analysis of orthorhombic hafnia by neutron powder diffraction
Related Subjects
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400101 -- Activation
Nuclear Reaction
Radiometric & Radiochemical Procedures
665300 -- Interactions Between Beams & Condensed Matter-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
CHALCOGENIDES
COHERENT SCATTERING
COOLING
CRYSTAL LATTICES
CRYSTAL STRUCTURE
DIFFRACTION
DISPERSIONS
HIGH PRESSURE
MIXTURES
NEUTRON DIFFRACTION
ORTHORHOMBIC LATTICES
OXIDES
OXYGEN COMPOUNDS
POWDERS
SCATTERING
SOLID SOLUTIONS
SOLUTIONS
TRANSITION ELEMENT COMPOUNDS
X-RAY DIFFRACTION
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES