Preparation and Relaxor Behavior of Barium Strontium Titanate Glass-Ceramics Doped Si-B-O Sintered from Sol-Gel Derived Powders
The structural and dielectric properties of Si-B-O doped Ba0.60Sr0.40TiO3 (BST) glass-ceramics prepared by using sol-gel derived powders have been investigated. The secondary phase of BaTi2Si2O8 is clearly observable in BST glass-ceramics when the concentration of Si-B-O is equal to or more than 20mol％. The samples with high Si-B-O doping levels can be sintered into dense microstructure in low sintering temperature (below 1000℃). The dielectric peaks of BST glass-ceramics are markedly suppressed, broadened and shifted to low temperature with increasing the concentration of Si-B-O, accompanying an increased diffuseness of the dielectric peak due to the ionic substitution, which follows well the Lorenz-type relation.
Sol-gel synthesis Barium strontium titanate (BST) Relaxor behavior
Jiangying Wang Jingji Zhang
College of Materials Science and Engineering, China Jiliang University, Hangzhou, China 310018
国际会议
11th IUMRS International Conference in Asia(第十一届国际材联亚洲材料大会 IUMRS-ICA 2010)
青岛
英文
370-374
2010-09-25（万方平台首次上网日期，不代表论文的发表时间）