Synthesis and phase stability of cotunnite-type zirconia

Journal Article · Sat Oct 01 04:00:00 EDT 1988 · J. Am. Ceram. Soc.; (United States)

DOI:https://doi.org/10.1111/j.1151-2916.1988.tb07525.x· OSTI ID:6265870

Ohtaka, O; Kume, S; Ito, E

The phase boundary between two high-pressure phases (ortho I and ortho II) of ZrO/sub 2/ was obtained by synthesis experiments using a 6-8 anvil-type device. The phase boundary was linearly approximated, its slope being +400 K/GPa. The phase with cotunnite (PbCl/sub 2/) structure (ortho II) appeared above 15 GPa. A single phase of Y-doped ZrO/sub 2/ with the cotunnite structure was also synthesized, but the stabilized tetragonal phase remained unchanged after the treatments at conditions where the ortho I phase forms in pure ZrO/sub 2/.

• Research Organization: College of General Education, Osaka Univ., Toyonaka (JP); Institute for Study of the Earth's Interior, Okayama Univ., Misasa (JP)
• OSTI ID: 6265870
• Journal Information: J. Am. Ceram. Soc.; (United States), Journal Name: J. Am. Ceram. Soc.; (United States) Vol. 71:10; ISSN JACTA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
CHALCOGENIDES
CHLORIDES
CHLORINE COMPOUNDS
CRYSTAL LATTICES
CRYSTAL STRUCTURE
DOPED MATERIALS
ELEMENTS
HALIDES
HALOGEN COMPOUNDS
HIGH PRESSURE
LEAD CHLORIDES
LEAD COMPOUNDS
LEAD HALIDES
MATERIALS
METALS
OXIDES
OXYGEN COMPOUNDS
PHASE STUDIES
SYNTHESIS
TETRAGONAL LATTICES
TRANSITION ELEMENT COMPOUNDS
TRANSITION ELEMENTS
YTTRIUM
ZIRCONIUM COMPOUNDS
ZIRCONIUM OXIDES