Compositions: ceramic – Ceramic compositions – Titanate – zirconate – stannate – niobate – or tantalate or...
Patent
1989-02-13
1990-09-11
Bell, Mark L.
Compositions: ceramic
Ceramic compositions
Titanate, zirconate, stannate, niobate, or tantalate or...
501139, C04B 3546
Patent
active
049563203
ABSTRACT:
A positive temperature coefficient semiconductor ceramic is prepared by adding from 0.2 to 12 mole % of silicon monoxide to a barium titanate family semiconductor ceramic which has been made into a semiconductor by the addition of a trace amount of a semiconductor agent.
REFERENCES:
patent: 4096098 (1978-06-01), Umeya et al.
patent: 4483933 (1984-11-01), Kobayashi et al.
patent: 4736230 (1988-04-01), Kumagai et al.
Asakura Masahiro
Igawa Akihiko
Bell Mark L.
Jones Deborah
Kurabe Industrial Co., Ltd.
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