ALUMINA-FIBER-REINFORCED CERAMIC MATERIAL AND METHOD OF MANUFACTURING SAID MATERIAL

A method of manufacturing an alumina-fiber-reinforced ceramic material which is large in filament content and strength, excellent in resistance to heat, corrosion, and thermal impact, and high in purity of alumina. Sintering is applied to a molded product obtained through the process that: filament...

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Bibliographische Detailangaben
Hauptverfasser:	ITOU, SHINICHI MITSUI MINING CO., LTD, KOMATSUBARA, YOSHINOBU MITSUI MINING CO., LTD, KAWASHIMA, TERUO MITSUI MINING CO., LTD, IWANAGA, KATSUSUKE MITSUI MINING CO., LTD, YAMAUCHI, JIN MITSUI MINING CO., LTD, NONAKA, SHINPEI MITSUI MINING CO., LTD
Format:	Patent
Sprache:	eng
Schlagworte:	ARTIFICIAL STONE BLASTING CEMENTS CERAMICS CHEMISTRY COMPOSITIONS THEREOF, e.g. MORTARS, CONCRETE OR LIKE BUILDINGMATERIALS CONCRETE DETAILS OF HEAT-EXCHANGE AND HEAT-TRANSFER APPARATUS, OFGENERAL APPLICATION HEAT EXCHANGE IN GENERAL HEATING LIGHTING LIME, MAGNESIA MECHANICAL ENGINEERING METALLURGY REFRACTORIES SLAG TREATMENT OF NATURAL STONE WEAPONS
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Beschreibung
Zusammenfassung:	A method of manufacturing an alumina-fiber-reinforced ceramic material which is large in filament content and strength, excellent in resistance to heat, corrosion, and thermal impact, and high in purity of alumina. Sintering is applied to a molded product obtained through the process that: filament yarns of continuous long filaments of a-alumina with high content of alumina are impregnated with slurry in which a water-soluble aluminum compound, an acid such as acetic acid or lactic acid, and a water-soluble organic binder are dissolved and alumina powder having particles each 1 m or smaller in primary particle diameter is dispersed; and the filament yarns impregnated with said slurry are wound around the core material and then dried. Because of filament yarns wound around the core material, a product in an intended shape and less contractible when sintered thanks to large filament content can easily be molded, whereby a fiber-reinforced ceramic material stable in quality can be obtained.