Bearings produced from silicon nitride substances containing sintering additives and SiO2

The present invention is directed to bearings produced from a silicon nitride material. The silicon nitride material consists of a sintering aid selected from the group consisting of Al2O3 and Y2O3, silicon dioxide, and optionally, up to 10 mole %, based on the amount of silicon nitride, of an addit...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser:	SIEGEL STEFAN, MICHAEL GRIT, FRASSEK LUTZ, HERRMANN MATHIAS, WOTTING GERHARD
Format:	Patent
Sprache:	eng
Schlagworte:	ARTIFICIAL STONE BEARINGS BLASTING CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE ELEMENTS OR CRANKSHAFT MECHANISMS ENGINEERING ELEMENTS AND UNITS FLEXIBLE SHAFTS GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVEFUNCTIONING OF MACHINES OR INSTALLATIONS HEATING LIGHTING LIME, MAGNESIA MECHANICAL ENGINEERING METALLURGY REFRACTORIES ROTARY BODIES OTHER THAN GEARING ELEMENTS SHAFTS SLAG THERMAL INSULATION IN GENERAL TREATMENT OF NATURAL STONE WEAPONS
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Beschreibung
Zusammenfassung:	The present invention is directed to bearings produced from a silicon nitride material. The silicon nitride material consists of a sintering aid selected from the group consisting of Al2O3 and Y2O3, silicon dioxide, and optionally, up to 10 mole %, based on the amount of silicon nitride, of an additive that reacts with silicon nitride, said additive selected from the group consisting of TiO2, WO3, MoO3 and mixtures thereof.