A comparative study of the grain size effects on ferro-para phase transition in barium titanate ceramics

Authors
Mitoseriu, L Tura, V Papusoi, C Osaka, T Okuyama, M
Citation
L. Mitoseriu et al., A comparative study of the grain size effects on ferro-para phase transition in barium titanate ceramics, FERROELECTR, 223(1-4), 1999, pp. 99-106
Citations number
13
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
FERROELECTRICS
ISSN journal
00150193 → ACNP
Volume
223
Issue
1-4
Year of publication
1999
Pages
99 - 106
Database
ISI
SICI code
0015-0193(1999)223:1-4<99:ACSOTG>2.0.ZU;2-U
Abstract
Barium titanate ceramics having grain sizes between 0.5 mu m and 20 mu m we re used in a comparative investigation of the ferro-para phase transition, by recording the temperature dependencies of the heat capacity and pyrochar ge. The experimental results and the theoretical approach suggest that inte rnal stresses are the main cause of the observed grain size effects.