Processing and Dielectric Properties of TiO2 Thick Films for High-Energy Density Capacitor Applications

被引：25

作者：

Chao, Sheng ^{[1
]}

Dogan, Fatih ^{[1
]}

机构：

[1] Missouri Univ Sci & Technol, Dept Mat Sci & Engn, Rolla, MO 65401 USA

来源：

INTERNATIONAL JOURNAL OF APPLIED CERAMIC TECHNOLOGY | 2011年 / 8卷 / 06期

关键词：

PHOSPHATE ESTER; TAPE; DISPERSANT; CERAMICS; TITANATE; SOLVENT; SHEETS; POWDER; SLIP;

D O I：

10.1111/j.1744-7402.2010.02592.x

中图分类号：

TQ174 [陶瓷工业]; TB3 [工程材料学];

学科分类号：

0805 ; 080502 ;

摘要：

Nanosized titanium dioxide (TiO2) powders (similar to 40 nm) were used for preparation of tape-casting slurries. Effect of various solvents and dispersants on the dispersability of TiO2 slurries was studied by sedimentation tests and rheology measurements. TiO2 green tapes were prepared by tape-casting method and densified at 1000 degrees C with a sintered density > 95%. Dielectric properties of TiO2 tapes were studied by measuring of dielectric constant, loss factor and dielectric breakdown strength (BDS) with respect to their microstructural development. BDS values as high as similar to 1400 kV/cm were obtained for sintered tapes so that energy densities up to 14 J/cm3 could be achieved.

引用

页码：1363 / 1373

页数：11

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