首页|The Influence of BaTiO_3 Tetragonality by Solid State Synthesis on MLCC's Dielectric Characteristics
The Influence of BaTiO_3 Tetragonality by Solid State Synthesis on MLCC's Dielectric Characteristics
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Trans Tech Publications Ltd
BaTiO_3 powders with particle size 0.1 μm were made by solid state synthesis. To make high tetragonality BaTiO_3 powder, mixture of TiO_2 and BaCO_3 was calcined in vacuum condition. And to make low tetragonality BaTiO_3 powder, the mixture was calcined in air condition. With each powder, MLCCs with Ni-internal electrode were fabricated. Relationships between temperature and relative dielectric constant of MLCCs' dielectric layers were analyzed and their dielectric grains were observed by TEM-EDS. As the result, MLCC made from high tetragonality BaTiO_3 powder had good temperature characteristics and core-shell dielectric grains.
MLCCBaTiO_3solid state synthesistetragonalityc/arelative dielectric constantcore-shell structure
Masayuki Hogiri、Hiroshi Kagata
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Corporate Components Development Center, Panasonic Electronic Devices Co., Ltd. 1006 Kadoma, Kadoma City, Osaka 571-8506, Japan
NETL
NSTL
Trans Tech Publications Ltd
