Reinforced ceramic refractory
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United States of America Patent
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Jan 10, 2012
Grant Date -
Sep 17, 2009
app pub date -
Mar 6, 2009
filing date -
Mar 11, 2008
priority date (Note) -
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Abstract
The disclosed invention relates to a reinforced ceramic refractory made from an as-batched composition comprising alumina; a rare earth oxide; an oxide of a transition metal comprising Sc, Zn, Ga, Y, Cd, In, Sn, Tl or a mixture of two or more thereof; and chopped ceramic fibers containing nanofibrils; the refractory exhibiting a modulus of rupture measured at 2500° F. (1371° C.) of at least about 2500 psi, as determined by the test method ASTM C583. A process for making the reinforced ceramic refractory is disclosed.
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