BARIUM TITANATE SEMICONDUCTOR CERAMIC COMPOSITION AND BARIUM TITANATE SEMICONDUCTOR CERAMIC ELEMENT

BARIUM TITANATE SEMICONDUCTOR CERAMIC COMPOSITION AND BARIUM TITANATE SEMICONDUCTOR CERAMIC ELEMENT

The following composition and device are provided: a barium titanate-based semiconductor ceramic composition which can be used for PTC thermistors for temperature sensors and which has characteristics, including a linear characteristic, advantageous for such PTC thermistors and a barium titanate-bas...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KAWASE YOICHI, NABIKA YASUHIRO, OKUDA SYUNSUKE, HIRATA YUICHI
Format: Patent
Sprache:eng ; fre ; ger
Schlagworte:
ARTIFICIAL STONE
BASIC ELECTRIC ELEMENTS
CABLES
CEMENTS
CERAMICS
CHEMISTRY
COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS
CONCRETE
CONDUCTORS
ELECTRICITY
INSULATORS
LIME, MAGNESIA
METALLURGY
REFRACTORIES
RESISTORS
SELECTION OF MATERIALS FOR THEIR CONDUCTIVE, INSULATING ORDIELECTRIC PROPERTIES
SLAG
TREATMENT OF NATURAL STONE
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Beschreibung
Zusammenfassung:The following composition and device are provided: a barium titanate-based semiconductor ceramic composition which can be used for PTC thermistors for temperature sensors and which has characteristics, including a linear characteristic, advantageous for such PTC thermistors and a barium titanate-based semiconductor ceramic device. A barium titanate-based semiconductor ceramic composition is represented by the formula (Ba (1-v-w) Me v Sr w )Ti x O 3 + ySiO 2 , wherein Me is at least one selected from the group consisting of Er, Sm, Ce, and La and v, w, x, and y are within the ranges given by the inequalities 0.001 ‰¤ v ‰¤ 0.005, 0.42 ‰¤ w ‰¤ 0.49, 0.99 ‰¤ x ‰¤ 1.03, and 0.002 ‰¤ y ‰¤ 0.030, respectively.