Discontinuous dissolution of a liquid phase in Ba(Ni1/3Nb2/3)O-3 ceramics

Authors
Park, JK Kim, DY Yoon, DY
Citation
Jk. Park et al., Discontinuous dissolution of a liquid phase in Ba(Ni1/3Nb2/3)O-3 ceramics, J AM CERAM, 84(1), 2001, pp. 218-220
Citations number
17
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science","Material Science & Engineering
Journal title
JOURNAL OF THE AMERICAN CERAMIC SOCIETY
ISSN journal
00027820 → ACNP
Volume
84
Issue
1
Year of publication
2001
Pages
218 - 220
Database
ISI
SICI code
0002-7820(200101)84:1<218:DDOALP>2.0.ZU;2-V
Abstract
Discontinuous dissolution of a liquid phase accompanied by diffusion-induce d grain-boundary migration (DIGM) in Ba(Ni1/3Nb2/3)O-3 (BNN) ceramics has b een studied. When the liquid-phase-sintered BNN specimens are heat-treated at low temperatures, the liquid phase formed during sintering is dissolved discontinuously and during the reaction grain boundaries migrate. As the he at-treatment temperature is lowered, the degree of grain boundary migration and dissolution of the liquid phase increase. These results are qualitativ ely consistent with the coherency strain energy model proposed for the driv ing force for DIGM.