ALUMINA SINTERED COMPACT, AND MEMBER FOR TREATMENT APPARATUS USING THE SAME, TREATMENT APPARATUS, AND TREATMENT METHOD

PROBLEM TO BE SOLVED: To solve the problem of the alumina sintered compact that various components, such as SiO2, CaO, and MgO, are contained as assistants in the alumina sintered compact composed of the α type alumina alone and, many of the crystals other than the α-alumina crystal existing after s...

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Hauptverfasser:	ASANO JUN, YASUNAGA KANA
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 the problem of the alumina sintered compact that various components, such as SiO2, CaO, and MgO, are contained as assistants in the alumina sintered compact composed of the α type alumina alone and, many of the crystals other than the α-alumina crystal existing after sintering are left and sufficient mechanical strength has been hardly obtained. SOLUTION: The alumina sintered compact is characterized by containing ≥99 mass% α type alumina, and containing ≤0.5 mass% (excluding 0 mass%) hibonite (CaAl12O19). COPYRIGHT: (C)2008,JPO&INPIT