SEMICONDUCTOR PORCELAIN COMPOSITION AND ITS PRODUCTION

PROBLEM TO BE SOLVED: To obtain a semiconductor porcelain composition small in specific resistance and high in voltage resistance by adding a fine amount of ZrO2 to a barium titanate porcelain composition containing Ba, Sr, Ca, Pb, rare earth elements, Ti, Mn, and Si. SOLUTION: This semiconductor po...

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Hauptverfasser:	HISHINUMA KAZUMICHI, ABE MOTOSHI
Format:	Patent
Sprache:	eng
Schlagworte:	ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE LIME, MAGNESIA METALLURGY REFRACTORIES SLAG TREATMENT OF NATURAL STONE
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Zusammenfassung:	PROBLEM TO BE SOLVED: To obtain a semiconductor porcelain composition small in specific resistance and high in voltage resistance by adding a fine amount of ZrO2 to a barium titanate porcelain composition containing Ba, Sr, Ca, Pb, rare earth elements, Ti, Mn, and Si. SOLUTION: This semiconductor porcelain composition comprises (Ba1- P- Q- R- SSrPCaQPbRMS)TiXO3 (M is an element selected from rare earth elements), MnO2 and SiO2 , and further 100-2,000ppm of ZrO2 . The semiconductor porcelain composition is obtained by grinding the raw materials of the porcelain composition into particles having an average particle diameter of