INFLUENCE OF SELECTED ADDITIVES AND CaO:SiO2 RATIO ON HIGH-TEMPERATURE STRENGTH OF MgO REFRACTORIES.

被引：0
|
作者：
Raymon, Nancy S.
机构：
来源：
Report of Investigations - United States, Bureau of Mines | 1982年
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中图分类号：
TQ17 [硅酸盐工业];
学科分类号：
0805 ; 080502 ;
摘要：
The Bureau of Mines investigated the effect of controlled additions of selected metal oxides as well as the adjustment of the calcia-to-silica ratio on the high-temperature strength of refractory-grade periclase. Increases in the hot flexural strength were obtained with additions of ZrO//2 and by adjustment of the CaO:SiO//2 ratio to the 2. 5 to 3. 0 level. For each material, there exists a combination that optimizes strength. The improved strengths can be attributed to high-temperature secondary phases.
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