Published February 1994 | Version v1
Journal article Metadata-only

Effective ionic radius of Y3+ determined from lattice parameters of fluorite-type HfO2 and ZrO2 solid solutions

Creators

  • 1. Korea Inst. of Science and Technology, Seoul (Korea, Republic of). Ceramics Division
  • 2. Yonsei Univ., Seoul (Korea, Republic of). Dept. of Ceramic Engineering
  • 3. Tokyo Inst. of Technology, Yokohama (Japan). Research Lab. of Engineering Materials

Description

Fluorite-type HfO2 and ZrO2 solid solutions were prepared by doping with 8 to 14 mol% of Ho2O3 and Y2O3, and their lattice parameters were determined. In both HfO2 and ZrO2 systems, the lattice parameters of the solid solutions containing Ho2O3 were consistently greater than those containing the same amounts of Y2O3. This indicated that the ionic radium of Ho3+ was larger than that of Y3+ in the fluorite structure solid solutions. The effective ionic radius of Y3+ in eightfold coordination was estimated to be 0.1011 nm by suing the measured lattice parameters and the empirical equations to predict the lattice parameters of the fluorite-type solid solutions

Additional details

Publishing Information

Journal Title
Journal of the American Ceramic Society
Journal Volume
77
Journal Issue
2
Journal Page Range
p. 597-599.
ISSN
0002-7820
CODEN
JACTAW

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
25054713
Subject category
S36: MATERIALS SCIENCE;
Descriptors DEI
DOPED MATERIALS; HAFNIUM OXIDES; LATTICE PARAMETERS; YTTRIUM OXIDES; ZIRCONIUM OXIDES
Descriptors DEC
CHALCOGENIDES; HAFNIUM COMPOUNDS; MATERIALS; OXIDES; OXYGEN COMPOUNDS; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS; ZIRCONIUM COMPOUNDS