Silicon nitride bonded magnesia refractory and method
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United States of America Patent
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Jul 2, 1991
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N/A
app pub date -
Jun 15, 1990
filing date -
Jun 15, 1990
priority date (Note) -
Expired
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Abstract
A mix for forming a silicon nitride bonded magnesia refractory shape consisting essentially of; for each 100 wt. % thereof at least, about 3 to 20 wt. % of a high purity silicon powder containing no more than about 0.2 wt. % metallic impurities and, correspondingly, 97 to 80 wt. % of a high purity magnesite; and the resultant refractory shape formed after shaping of the mix and nitriding thereof and the method of making such shape.
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