Laminated composite ceramics and elements using same

Stock material or miscellaneous articles – Composite – Of metal

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428472, 428688, 428689, 338 22R, B32B 1800, B32B 1504

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active

058209956

ABSTRACT:
A laminated composite ceramic is formed with a positive temperature coefficient (PTC) ceramic element and either a negative temperature coefficient (NTC) ceramic element or a fixed resistance ceramic element, laminated and integrated with each other as a laminated ceramic body. An inner electrode is at least on the boundary between these ceramic elements. These elements have barium titanate as main constituents. A laminated composite ceramic element has similar ceramic elements with inner electrodes buried in parts and connected to outer electrodes formed on different side surfaces of the ceramic body. The molar % of barium and titanate Ba/Ti is preferably 0.99-1.05 for the PTC ceramic element and 0.95-1.01 for the NTC and fixed resistance ceramic elements.

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