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Effects of B 2 O 3 Addition on the Dielectric and Ferroelectric Properties of Ba 0.7 Sr 0.3 TiO 3 Ceramics
Author(s) -
Rhim Sung Min,
Hong Seokmin,
Bak Heungjin,
Kim Ok Kyung
Publication year - 2000
Publication title -
journal of the american ceramic society
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.9
H-Index - 196
eISSN - 1551-2916
pISSN - 0002-7820
DOI - 10.1111/j.1151-2916.2000.tb01345.x
Subject(s) - ferroelectricity , dielectric , sintering , materials science , ceramic , dielectric loss , mineralogy , phase (matter) , ferroelectric ceramics , analytical chemistry (journal) , composite material , chemistry , optoelectronics , organic chemistry
The effects of B 2 O 3 addition on the sintering behavior and the dielectric and ferroelectric properties of Ba 0.7 Sr 0.3 TiO 3 (BST) ceramics were investigated. The dielectric and ferroelectric properties of a BST sample with 0.5 wt% B 2 O 3 sintered at <1150°C were as good as those of undoped BST sintered at 1350°C, and the dielectric loss was better. When >1.0 wt% B 2 O 3 was added to BST, the overdoped B 2 O 3 did not form a liquid phase or volatilize; it remained in the samples and formed a secondary phase that lowered the sintering behavior and the dielectric and ferroelectric properties of the BST.