2.3 Effect of Furnace Atmosphere There was no significant difference in the experimental results when the slag alkalinity of the samples prepared using the sintered magnesia as raw material was 4.
3 Conclusions When the carbon content is in the range of 10% to 20%, the denser layer of MgO formed will increase as the carbon content decreases.
The oxygen that oxidizes Mg(g) to form a dense layer of MgO is provided by molten slag through the molten metal. Therefore, all factors that affect the oxygen activity in molten slag and molten metal will affect the formation of dense MgO layers.
The atmosphere in the furnace has no significant effect on the formation of the Mg dense layer.
Compared with fused magnesia, when sintered magnesia is used as raw material, MgO dense layer is more easily formed on the surface of the refractory material.
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