Dielectric properties and aging of fast-fired barium titanate

被引：0
作者：
Alles, AB [1 ]
Vanalstine, R
Schulze, W
机构：
[1] Univ Republica, Inst Ingn Quim, Fac Ingn, Dept Ceram, Montevideo, Uruguay
[2] Alfred Univ, New York State Coll Ceram, Alfred, NY 14802 USA
来源：
LATIN AMERICAN APPLIED RESEARCH | 2005年 / 35卷 / 01期
关键词：
fast-firing; sintering; barium titanate; dielectric; aging;
D O I：
暂无
中图分类号：
TQ [化学工业];
学科分类号：
0817 ;
摘要：
The dielectric properties and their aging rate of three chemically prepared BaTiO3 Compositions, from Ba-rich to Ti-rich fast fired to 1450degreesC, were measured from 470 K down to 225 K. Ba-rich samples, in spite of their similar sintering behavior when compared to stoichiometric samples, exhibited the highest dielectric constant values of all compositions. The 1 kHz dissipation factor values in Ba-rich and stoichiometric samples were not observed to decrease with increasing fired density of the samples. High density samples of all three stoichiometries exhibited fairly small losses just above the Curie temperature, while Ba-rich and stoichiometric samples exhibited a marked decrease in the dissipation factor below 260 K.
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页码：29 / 35
页数：7
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