Title:
SINTERED SILICON CARBIDE BODIES WITH OPTIMISED TRIBOLOGICAL PROPERTIES FOR THE SLIDE AND SEALING SURFACES THEREOF
Document Type and Number:
WIPO Patent Application WO2004022507
Kind Code:
A8
Abstract:
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 µm to 48 µm.
Inventors:
MEIER GERD (DE)
BOETTCHER JUERGEN (DE)
ELTERLEIN KONSTANTIN (DE)
STEINER MATTHIAS (DE)
KAEFER DIETER (DE)
SIMMERL MATTHIAS (DE)
BOETTCHER JUERGEN (DE)
ELTERLEIN KONSTANTIN (DE)
STEINER MATTHIAS (DE)
KAEFER DIETER (DE)
SIMMERL MATTHIAS (DE)
Application Number:
PCT/EP2003/009748
Publication Date:
April 14, 2005
Filing Date:
September 02, 2003
Export Citation:
Assignee:
CERAMTEC AG (DE)
MEIER GERD (DE)
BOETTCHER JUERGEN (DE)
ELTERLEIN KONSTANTIN (DE)
STEINER MATTHIAS (DE)
KAEFER DIETER (DE)
SIMMERL MATTHIAS (DE)
MEIER GERD (DE)
BOETTCHER JUERGEN (DE)
ELTERLEIN KONSTANTIN (DE)
STEINER MATTHIAS (DE)
KAEFER DIETER (DE)
SIMMERL MATTHIAS (DE)
International Classes:
C04B35/565; C04B38/00; C04B38/06; F16C33/04; (IPC1-7): C04B35/576; C04B38/00; C04B38/06; F16C33/04
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