Sintering of PbO added (Pd, Ba) (Zn, Mg, Nb, Ti) O3 ceramics and their dielectric properties.
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- Tashiro Shinjiro
- 防衛大学校電気工学教室
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- Tsuji Yuji
- 防衛大学校電気工学教室
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- Yamashita Yohachi
- マルコン電子(株)
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- Igarashi Hideji
- 防衛大学校電気工学教室
Bibliographic Information
- Other Title
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- PbOを過剰に加えた(Pb,Ba)(Zn,Mg,Nb,Ti)O3の焼結と誘電的性質
- PbO オ カジョウ ニ クワエタ Pb Ba Zn Mg Nb Ti O3
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Abstract
The powder of (Pb, Ba) (Zn, Mg, Nb, Ti)O3 system ceramics developed as the multilayer capacitor material with the optimum firing temperature of 1100°C was mixed with small amount of excess PbO as a sintering aid and ground to submicron by ball-milling using the partially stabilized zirconia balls of 3 mmφ. Microstructures such as density, grain size or liquidus phase of the ceramics fabricated from the powders were examined as a function of excess PbO content by SEM and DTA. Densification was enhanced by addition of excess PbO at the firing temperature lower than 1000°C, and the dense ceramic bodies above 7.7 g/cm3 with small grain were obtained at firing temperature of 750°C. Temperature dependence of dielectric constants were measured by a LF inpedance analyzer at 1 kHz. For the 2 mol%PbO added ceramics sintered at 800°C, relative permittivity at room temperature higher than 10000 was successfully attained without remarkable change of loss factor and insulation resistance from those of the stoichiometric ceramics sintered at 1100°C.
Journal
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- Journal of the Japan Society of Powder and Powder Metallurgy
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Journal of the Japan Society of Powder and Powder Metallurgy 35 (6), 538-542, 1988
Japan Society of Powder and Powder Metallurgy
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Keywords
Details 詳細情報について
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- CRID
- 1390001206307749888
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- NII Article ID
- 130000813351
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- NII Book ID
- AN00222724
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- ISSN
- 18809014
- 05328799
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- NDL BIB ID
- 3655441
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- Text Lang
- ja
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- Data Source
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- JaLC
- NDL
- Crossref
- CiNii Articles
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- Abstract License Flag
- Disallowed