Dependence of the crystal structure on particle size in barium titanate

Journal Article · Tue Aug 01 04:00:00 EDT 1989 · Journal of the American Ceramic Society; (USA)

DOI:https://doi.org/10.1111/j.1151-2916.1989.tb07706.x· OSTI ID:5374146

Uchino, K; Hirose, T ^[1]; Sadanaga, E ^[2]

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1. Dept. of Physics, Sophia Univ., Kioi-cho 7-1, Chiyoda-ku, Tokyo 102 (JP)
2. Titan Kogyo Kabushiki Kaisha, Oaza Ogushi 1978, Ube-shi, Yamaguchi 755 (JP)

The authors discuss the effect of the sample particle size on the crystal structure and the Curie temperature of BaTiO/sub 3/ powder investigated in the particle size range 0.1 to 1.0 {mu}m. The transformation from tetragonal to cubic symmetry occurs at a critical particle size of 0.12 {mu}m at room temperature, and the Curie temperature drops below room temperature at the critical particle size.

• OSTI ID: 5374146
• Journal Information: Journal of the American Ceramic Society; (USA), Journal Name: Journal of the American Ceramic Society; (USA) Vol. 72:8; ISSN 0002-7820; ISSN JACTA
• Country of Publication: United States
• Language: English

Related Subjects

36 MATERIALS SCIENCE
360202* -- Ceramics
Cermets
& Refractories-- Structure & Phase Studies
ALKALINE EARTH METAL COMPOUNDS
BARIUM COMPOUNDS
BARIUM OXIDES
CHALCOGENIDES
CRYSTAL LATTICES
CRYSTAL STRUCTURE
OXIDES
OXYGEN COMPOUNDS
PARTICLE SIZE
PHASE TRANSFORMATIONS
PHONONS
QUASI PARTICLES
SIZE
TETRAGONAL LATTICES
TITANATES
TITANIUM COMPOUNDS
TITANIUM OXIDES
TRANSITION ELEMENT COMPOUNDS