Published August 1993 | Version v1
Journal article Metadata-only

Influence of metal ions on the order-disorder transition temperature of the Ba-M-O (M: La, Y, In, or Ga) system

Creators

  • 1. Saitama Univ., Urawa (Japan). Dept. of Applied Chemistry
  • 2. TOSOH Co., Ltd., Tsukuba (Japan). Tsukuba Research Lab.

Description

Preparation of BaLa2O4, Ba3Y4O9, Ba2In2O5, and Ba3Ga2O6 powders and their sintering were investigated in Ar or air. These sintered bodies with perovskite-related structure were synthesized by reaction sintering, using mixed powders in the atomic ratios of Ba/La = 1, Ba/Y = 0.75, Ba/In = 1, and Ba/Ga = 1.5. The order-disorder transition temperatures of the BaLa2O4, Ba3Y4O9, Ba2In2O5, and Ba3Ga2O6, sintered bodies were 270, 350, 880, and 1,230 C, respectively. It was found that the temperatures were influenced by the ionic radius of cations in B sites, and the transition temperatures decreased with increasing ionic radius

Additional details

Publishing Information

Journal Title
Journal of the American Ceramic Society
Journal Volume
76
Journal Issue
8
Journal Page Range
p. 2127-2128.
ISSN
0002-7820
CODEN
JACTAW

INIS

Country of Publication
United States
Country of Input or Organization
United States
INIS RN
25008707
Subject category
S36: MATERIALS SCIENCE; S36: MATERIALS SCIENCE;
Resource subtype / Literary indicator
Numerical Data
Descriptors DEI
BARIUM OXIDES; DIFFERENTIAL THERMAL ANALYSIS; ELECTRIC CONDUCTIVITY; EVAPORATION; EXPERIMENTAL DATA; GALLIUM OXIDES; INDIUM OXIDES; LANTHANUM OXIDES; ORDER-DISORDER TRANSFORMATIONS; PEROVSKITE; SINTERING; STOICHIOMETRY; TRANSITION TEMPERATURE; X-RAY DIFFRACTION; YTTRIUM OXIDES
Descriptors DEC
ALKALINE EARTH METAL COMPOUNDS; BARIUM COMPOUNDS; CHALCOGENIDES; COHERENT SCATTERING; DATA; DIFFRACTION; ELECTRICAL PROPERTIES; FABRICATION; GALLIUM COMPOUNDS; INDIUM COMPOUNDS; INFORMATION; LANTHANUM COMPOUNDS; MINERALS; NUMERICAL DATA; OXIDE MINERALS; OXIDES; OXYGEN COMPOUNDS; PHASE TRANSFORMATIONS; PHYSICAL PROPERTIES; RARE EARTH COMPOUNDS; SCATTERING; THERMAL ANALYSIS; THERMODYNAMIC PROPERTIES; TRANSITION ELEMENT COMPOUNDS; YTTRIUM COMPOUNDS