The effect of grain size on dielectric behavior of BaTiO3 based X7R materials

被引：63
作者：
Park, Y
Kim, YH
Kim, HG
机构：
[1] KOREA INST SCI & TECHNOL,DEPT CERAM,CHEONGRYANG,SEOUL,SOUTH KOREA
[2] KOREA ADV INST SCI & TECHNOL,DEPT MAT SCI & ENGN,TAEJON 305701,SOUTH KOREA
来源：
MATERIALS LETTERS | 1996年 / 28卷 / 1-3期
关键词：
barium titanate; powder; sol-gel; synthesis; grain size; dielectric properties;
D O I：
10.1016/0167-577X(96)00054-7
中图分类号：
T [工业技术];
学科分类号：
08 ;
摘要：
Using high purity BaTiO3 powders of various particle size, we investigated the temperature dependence of the dielectric constant in BaTiO3 based X7R ceramic capacitor materials. The sintered grain size was almost proportional to the particle size of the starting BaTiO3 powder. The sharp peak intensity at 130 degrees C and the broad peak intensity around the lower temperature were determined by the volume fraction of the grain cores and by the volume fraction of grain shells, respectively.
引用
收藏
页码：101 / 106
页数：6
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