HIGH STRENGTH SINTERED SILICON CARBIDE ARTICLE

HIGH STRENGTH SINTERED SILICON CARBIDE ARTICLE

A method for producing a sintered silicon carbide article of high density and mechanical strength comprising sintering in an inert atmosphere at a temperature of from 1900 to 2300 DEG C a shaped mixture of 100 parts by weight of finely divided silicon carbide powder, tar pitch in an amount of 2-10 p...

Ausführliche Beschreibung

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Bibliographische Detailangaben
Hauptverfasser: YOSHISABURO NOMURA, MASAHIDE MOURI, KOICHI YAMADA
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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Beschreibung
Zusammenfassung:A method for producing a sintered silicon carbide article of high density and mechanical strength comprising sintering in an inert atmosphere at a temperature of from 1900 to 2300 DEG C a shaped mixture of 100 parts by weight of finely divided silicon carbide powder, tar pitch in an amount of 2-10 parts by weight, boron component in an amount corresponding to 0.03-0.15 parts by weight of boron, and silicon powder in an amount of 0.3 - 3 parts by weight.