METHOD FOR PRODUCING SILICON CARBIDE SINTERED COMPACT

METHOD FOR PRODUCING SILICON CARBIDE SINTERED COMPACT

PROBLEM TO BE SOLVED: To solve a problem that, though there are methods by using elements Al, B and C or an Al8B4C7compound as sintering aids for sintering means to make SiC sintered compact, however the elements Al, B and C hardly form a suspension causing trouble in mixing, while the Al8B4C7compou...

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Hauptverfasser: NISHIMURA SATOYUKI, SAKKA YOSHIO, RI SEIKUN, TANAKA HIDEHIKO
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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Zusammenfassung:PROBLEM TO BE SOLVED: To solve a problem that, though there are methods by using elements Al, B and C or an Al8B4C7compound as sintering aids for sintering means to make SiC sintered compact, however the elements Al, B and C hardly form a suspension causing trouble in mixing, while the Al8B4C7compound is difficult to be synthesized, or actually cannot be synthesized as a single phase. SOLUTION: Powder molding and sintering have caused drawbacks in conventional processes. The inventors have found out a sintering aid Al3BC3compound which is stable at high temperatures. Further it easily forms a suspension with SiC powder so that it facilitates the molding process and sintering process. COPYRIGHT: (C)2009,JPO&INPIT