Conclusions
The possibility in principle is shown of obtaining pure forsterite by electric-arc melting of natural magnesium orthosilicate.
It was established that the oxides of iron, chromium, silicon, and manganese reduce easily and are concentrated in a ferroalloy the content of which is 6–8%. The product of fusion of dunite is 95–98% forsterite and an insignificant quantity of iron containing siliceous glass.
Parts produced from fused dunite have quality indices significantly exceeding the indices of those produced from fired dunite.
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Literature cited
P. P. Budnikov, The Technology of Ceramics and Refractories [in Russian], Gosizdat. Lit. po Stro. Mater., Moscow (1955).
A. A. Litvakovskii, Fused Cast Refractories [in Russian], Gosizdat. Lit. po Stro. Mater., Moscow (1959).
I. P. Bardin (ed.), Blast Furnace Production (Handbook) [in Russian], Metallurgizdat, Moscow (1963).
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Translated from Ogneupory, No. 8, pp. 31–34, August, 1985.