HIGH FIELD STRENGTH VARISTOR MATERIAL

PROBLEM TO BE SOLVED: To provide a high field strength varistor material having a low power loss level, and further having another electric characteristic, that is, excellent performance related to, in particular, a nonlinear current-voltage curve (or each current density-field strength curve), impu...

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Hauptverfasser:	KESSLER RETO, HAGEMEISTER MICHAEL, BECK OLIVER, GREUTER FELIX, OSTERLUND RAGNAR
Format:	Patent
Sprache:	eng
Schlagworte:	ARTIFICIAL STONE BASIC ELECTRIC ELEMENTS CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE ELECTRICITY LIME, MAGNESIA METALLURGY REFRACTORIES RESISTORS SLAG TREATMENT OF NATURAL STONE
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creator	KESSLER RETO HAGEMEISTER MICHAEL BECK OLIVER GREUTER FELIX OSTERLUND RAGNAR
description	PROBLEM TO BE SOLVED: To provide a high field strength varistor material having a low power loss level, and further having another electric characteristic, that is, excellent performance related to, in particular, a nonlinear current-voltage curve (or each current density-field strength curve), impulse behavior, and stability of useful life. SOLUTION: This varistor material for a surge arrester contains ZnO forming a ZnO phase and Bi expressed as Bi2O3forming an intergranular bismuth oxide phase. The varistor material further includes a spinel phase, wherein the amount of a pyrochlore phase included in the varistor material is such that the ratio of the pyrochlore phase to the spinel phase is less than 0.15. COPYRIGHT: (C)2011,JPO&INPIT
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SOLUTION: This varistor material for a surge arrester contains ZnO forming a ZnO phase and Bi expressed as Bi2O3forming an intergranular bismuth oxide phase. The varistor material further includes a spinel phase, wherein the amount of a pyrochlore phase included in the varistor material is such that the ratio of the pyrochlore phase to the spinel phase is less than 0.15. 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SOLUTION: This varistor material for a surge arrester contains ZnO forming a ZnO phase and Bi expressed as Bi2O3forming an intergranular bismuth oxide phase. The varistor material further includes a spinel phase, wherein the amount of a pyrochlore phase included in the varistor material is such that the ratio of the pyrochlore phase to the spinel phase is less than 0.15. 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SOLUTION: This varistor material for a surge arrester contains ZnO forming a ZnO phase and Bi expressed as Bi2O3forming an intergranular bismuth oxide phase. The varistor material further includes a spinel phase, wherein the amount of a pyrochlore phase included in the varistor material is such that the ratio of the pyrochlore phase to the spinel phase is less than 0.15. COPYRIGHT: (C)2011,JPO&INPIT</abstract><oa>free_for_read</oa></addata></record>
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subjects	ARTIFICIAL STONE BASIC ELECTRIC ELEMENTS CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE ELECTRICITY LIME, MAGNESIA METALLURGY REFRACTORIES RESISTORS SLAG TREATMENT OF NATURAL STONE
title	HIGH FIELD STRENGTH VARISTOR MATERIAL
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