NOTES ON REACTION BETWEEN MgO AND VARIOUS TYPES OF REFRACTORIES * |
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| Authors: | C. L. Norton Jr. Bradford Hooper |
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| Affiliation: | The Babcock & Wilcox Company Refractories Division 85 Liberty Street New York 6, N. Y. |
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| Abstract: | Samples of high-heat duty, superduty, 60% Al2O3, 70% Al2O3, 90% Al2O3, fused-alumina, kaolin base, kyanite base, chrome magnesite, silicon carbide, zircon, and chrome-magnesite compositions were tested for reaction with MgO at temperatures of 2200°, 2600°, and 2800°F. (1205°, 1425°, and 1540°C.). Silicon carbide and zircon refractories showed a slight reaction at 2800°F. and none at 2600°F. or at 2200°F. Commercial grades of firebrick containing 60% or more of Al2O3 in contact with powdered magnesia showed no reaction up to 2800°F. |
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