Premium
Effect of BaF 2 Addition on Crystallization Kinetics and Dielectric Properties of B 2 O 3 –Nb 2 O 5 –SrO–BaO Glass–Ceramics
Author(s) -
Zeng Yike,
Qin Xiaoye,
Jiang Shenglin,
Zhang Guangzu,
Zhang Ling
Publication year - 2011
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.1551-2916.2010.04223.x
Subject(s) - crystallization , materials science , dielectric , ceramic , microstructure , activation energy , nucleation , strontium barium niobate , barium , glass ceramic , composite material , mineralogy , kinetics , chemical engineering , analytical chemistry (journal) , metallurgy , thermodynamics , chemistry , ferroelectricity , physics , optoelectronics , engineering , chromatography , quantum mechanics
A series of strontium barium niobate‐based B 2 O 3 system glass–ceramics have been prepared by conventional melting and heat‐treated crystallization method. The effect of BaF 2 addition in nucleation and crystallization kinetics has been explored for dielectric applications. BaF 2 addition decreased the activation energy of crystallization obviously and changed microstructure of glass–ceramics significantly. The dielectric constant and breakdown strength of glass–ceramics were improved significantly by adding BaF 2 . The glass–ceramic with a relative dielectric constant of 337 and a breakdown strength of 52.7 kV/mm was achieved.