Published May 1977 | Version v1
Journal article Metadata-only

Fluorite related ordered compounds in the ZrO2--CaO and ZrO2--Y2O3 systems

Creators

  • 1. Pennsylvania State Univ., University Park

Description

ZrO2:CaO and ZrO2:Y2O3 systems have been examined for possible ordered compounds. Fluorite related ordered compounds CaZr4O9 and Zr3Y4O12 have been successfully prepared and identified. While it is believed that the former is monoclinic with a = 17.813 +- 0.005A, b = 14.612 +- .004A, c = 12.065 +- .003A and β = 119.5 +- .020 and isostructural with CaHf4O9, the latter appears to be isostructural with M7O12 type of compounds with a = 9.723 +- .001A and c = 9.090 +- 0.002A, which is formed commonly in compounds containing tri and tetravalent cations and is characterized by a chain oxygen vacancy along a [111] of the original fluorite. No other fluorite related ordered compound could be detected in these systems

Additional details

Identifiers

DOI
10.1016/0025-5408(77)90122-2;

Publishing Information

Journal Title
Materials Research Bulletin
Journal Volume
12
Journal Issue
5
Series
Mater. Res. Bull.
Journal Page Range
549-556
ISSN
0025-5408

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
9365208
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
CRYSTAL STRUCTURE; SYNTHESIS; YTTRIUM OXIDES; ZIRCONIUM OXIDES
Descriptors DEC
CHALCOGENIDES; OXIDES; OXYGEN COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS; ZIRCONIUM COMPOUNDS

Optional Information

Notes
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