| 摘要 |
Disclosed herein is a refractory brick batch mix which consists essentially of, by weight, about 85 to 95 percent alumina, about 2.99 to 12.99 percent silica, about 0.01 to 0.5 percent of a lithium compound capable of oxidizing to lithium oxide, and about 2 to 7 percent volatilized silica. Refractories prepared from these mixtures exhibit increased strength, higher density, lower porosity and higher refractoriness compared to those previously available.
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