SINTERED SILICON CARBIDE BODIES WITH OPTIMISED TRIBOLOGICAL PROPERTIES FOR THE SLIDE AND SEALING SURFACES THEREOF

SINTERED SILICON CARBIDE BODIES WITH OPTIMISED TRIBOLOGICAL PROPERTIES FOR THE SLIDE AND SEALING SURFACES THEREOF

The material silicon carbide possesses not just extraordinarily good thermal, chemical and mechanical properties, as a result of an adjustable porosity it is also possible to apply the material in conditions with difficult tribological relationships. As the porosity influences not only the friction...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: KÄFER, DIETER, MEIER, GERD, STEINER, MATTHIAS, ELTERLEIN, KONSTANTIN, SIMMERL, MATTHIAS, BÖTTCHER, JÜRGEN
Format: Patent
Sprache:eng ; fre ; ger
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 material silicon carbide possesses not just extraordinarily good thermal, chemical and mechanical properties, as a result of an adjustable porosity it is also possible to apply the material in conditions with difficult tribological relationships. As the porosity influences not only the friction between two workpieces, but also the rigidity of a material, a careful selection of pore diameter, number of pores per unit volume of material and the distribution of the pores in the material is necessary. According to the invention, with a porosity of the sintered silicon carbide body of 2 to 12 vol. %, comprised of non-communicating closed pores, evenly distributed in the material, the pores are spherical and have a nominal diameter of from 10 mum to 48 mum.