所属单位：材料科学与工程学院

发表刊物：Journal of Electroceramics

关键字：中文关键字：介电性能；弛豫行为；弥散相变；钛酸钡，英文关键字：Dielectric properties ；Relaxation behavior；Diffuse

摘要：Ferroelectric ceramics of BSCT (0≤x≤0.30) were prepared by a routine solid-state reaction technique. Co-substitution of Sr2+ and Ca2+ for Ba2+ with equal mole in BaTiO3 restrain the maximal dielectric constant Km strongly when 0.2≥x>0. However, composition BSCT(x=0.30)TiO3 shows the higher maximal dielectric constant. With increasing Sr and Ca content x, temperature Tm of the maximal dielectric constant Km shifts to low temperature and all selected compositions for study exhibit a broad phase transition temperature range. The composition (Ba0.4Sr0.3Ca0.3)TiO3 presents characteristics of ferroelectric relaxor, value of Km decreases and temperature Tm increases with increasing frequency.

备注：云斯宁

合写作者：xiaoliwang

第一作者：云斯宁

论文类型：期刊论文

卷号：卷：21

期号：期：1-4

页面范围：页：585-588

是否译文：否

发表时间：2008-12-01