CARBON FIBER-REINFORCED CARBON COMPOSITE CRUCIBLE AND METHOD FOR PRODUCING THE CRUCIBLE

PROBLEM TO BE SOLVED: To provide a carbon fiber-reinforced carbon composite crucible which is used for supporting and holding a crucible containing a melt material in an apparatus for producing a single crystal or a polycrystal of a semiconductor material, a solar cell material or the like, wherein...

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Hauptverfasser:	SOTODANI EIICHI, TSUSHIMA EIKI, OKAWA MASAYUKI, MORI TAKAKAZU, YOSHIMITSU DAISHI
Format:	Patent
Sprache:	eng
Schlagworte:	AFTER-TREATMENT OF SINGLE CRYSTALS OR A HOMOGENEOUSPOLYCRYSTALLINE MATERIAL WITH DEFINED STRUCTURE APPARATUS THEREFOR ARTIFICIAL STONE CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE CRYSTAL GROWTH LIME, MAGNESIA METALLURGY PRODUCTION OF A HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE REFINING BY ZONE-MELTING OF MATERIAL REFRACTORIES SINGLE CRYSTALS OR HOMOGENEOUS POLYCRYSTALLINE MATERIAL WITHDEFINED STRUCTURE SINGLE-CRYSTAL-GROWTH SLAG TREATMENT OF NATURAL STONE UNIDIRECTIONAL SOLIDIFICATION OF EUTECTIC MATERIAL ORUNIDIRECTIONAL DEMIXING OF EUTECTOID MATERIAL
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Beschreibung
Zusammenfassung:	PROBLEM TO BE SOLVED: To provide a carbon fiber-reinforced carbon composite crucible which is used for supporting and holding a crucible containing a melt material in an apparatus for producing a single crystal or a polycrystal of a semiconductor material, a solar cell material or the like, wherein in a bottom curved portion, a stepped part of a wrinkle or an overlap is eliminated to improve durability. SOLUTION: The carbon fiber-reinforced carbon composite crucible 1 includes a bottom portion 3 having a curved portion in a circumference portion and a straight body portion 2 extended upward from the curved portion of the bottom portion. The bottom portion 3 and the straight body portion 2 are formed by laminating a plurality of sheets of carbon fiber cloths 11, 12, 13 (10) having alternately woven warps and woofs of carbon fibers. The axial lines of the warps and wefts of the carbon fiber cloths at the curved portion of the bottom portion are formed in a direction oblique to the circumference direction of the crucible. COPYRIGHT: (C)2011,JPO&INPIT