Magnesia-based sintered body and process for preparing same
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United States of America Patent
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Oct 27, 1992
Grant Date -
N/A
app pub date -
Jan 17, 1991
filing date -
Jan 19, 1990
priority date (Note) -
Expired
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Abstract
A magnesia-based sintered body of a homogeneous composition having a porosity lower than 1% and a hydrateability lower than 0.3%, said sintered body having a chemical composition comprising 70 to 99.9% by weight of magnesia and 30 to 0.1% by weight of at least one oxide selected from the group consisting of titanium oxide, aluminum oxide, ferric oxide, phosphorus pentoxide, yttrium oxide, barium oxide, boron oxide, calcium oxide and lithium oxide. The sintered body is obtained by molding a powdery mixture of magnesia and the oxide other than magnesia.
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