Sintering of alumina green sheet with TiO2 and Cr2O3 in reducing atmosphere

Toshiya Watanabe; Chiaki Nakayama

doi:10.2109/jcersj.101.556

Sintering of alumina green sheet with TiO₂ and Cr₂O₃ in reducing atmosphere

Toshiya Watanabe, Chiaki Nakayama

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Abstract

Alumina green sheets with the additions of TiO₂ and Cr₂O₃ were prepared by doctor blade process and sintered at temperatures from 1500 to 1600°C in reducing atmosphere. Densification, electrical properties and microstructure were investigated. TiO₂ addition decreases the resistivity, however, it decreases the density of sintered bodies and results in porous microstructure. Chromium and titanium metals and small amounts of carbon were detected in the porous ceramics. The evolution of gas produced by the reaction of carbon during sintering was considered to cause the deterioration in densification and the decrease in electrical resistivity.

Original language	English
Pages (from-to)	556-563
Number of pages	8
Journal	Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan
Volume	101
Issue number	1173
DOIs	https://doi.org/10.2109/jcersj.101.556
Publication status	Published - 1993

ASJC Scopus subject areas

Ceramics and Composites
Chemistry(all)
Condensed Matter Physics
Materials Chemistry

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10.2109/jcersj.101.556

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abstract = "Alumina green sheets with the additions of TiO2 and Cr2O3 were prepared by doctor blade process and sintered at temperatures from 1500 to 1600°C in reducing atmosphere. Densification, electrical properties and microstructure were investigated. TiO2 addition decreases the resistivity, however, it decreases the density of sintered bodies and results in porous microstructure. Chromium and titanium metals and small amounts of carbon were detected in the porous ceramics. The evolution of gas produced by the reaction of carbon during sintering was considered to cause the deterioration in densification and the decrease in electrical resistivity.",

author = "Toshiya Watanabe and Chiaki Nakayama",

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AB - Alumina green sheets with the additions of TiO2 and Cr2O3 were prepared by doctor blade process and sintered at temperatures from 1500 to 1600°C in reducing atmosphere. Densification, electrical properties and microstructure were investigated. TiO2 addition decreases the resistivity, however, it decreases the density of sintered bodies and results in porous microstructure. Chromium and titanium metals and small amounts of carbon were detected in the porous ceramics. The evolution of gas produced by the reaction of carbon during sintering was considered to cause the deterioration in densification and the decrease in electrical resistivity.

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JO - Nippon Seramikkusu Kyokai Gakujutsu Ronbunshi/Journal of the Ceramic Society of Japan

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Sintering of alumina green sheet with TiO₂ and Cr₂O₃ in reducing atmosphere

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