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PTCR Characteristics in Barium Titanate Ceramics with Curie Points Between 60° and 360°C
Authors:Makoto,Kuwabara&#   Kenji,Kumamoto
Affiliation:Kyushu Institute of Technology, Tobata, Kitakyushu, 804 Japan
Abstract:PTCR characteristics in porous semiconducting barium titanate ceramics with Curie points from 60° to 360°C were investigated. The magnitude of the PTCR effect in these cerumics decreases self-onsistently with increasing Curie point within this temperature range. A PTCR efSect of more than 4 orders of magnitude was ahserved, for a Ba0.44Pb0.6TiO3 ceramic with a Curie point of 360°C .
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