The Non-ferrous Pyrometallurgy
Best Paper Award
2009 winner-
B. Zhao, E. Jak, P.C. Hayes - High Temperature softening behaviour of Imperial Smelting Furnace sinters in Air - published in the CMQ Vol 47, no.2 pp. 139-148, 2008
Abstract
The high temperature softening characteristics of synthetic zinc sinters
in air have been measured. The deformation characteristics of these
complex multi-phase materials are shown to be related directly to the bulk
chemical compositions of the samples and the microstructures. It is shown
that the strain rate of the samples under constant stress decreases with
increasing aspect ratio of the refractory zincite crystals. High aspect ratio
zincite is formed by obtaining high iron in solid solution in zincite, this
condition is favoured by high iron in the liquid phase, high CaO/SiO2 ratio
and high sintering temperature. The study confirms the importance of
aspect ratio of the zincite in obtaining high softening temperatures in
sinter materials used in Imperial Smelting Furnaces (ISF).
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