Abstract
AbstractThe effects of particles size, sample‐to‐flux ratio, fusion temperature and fusion period on the speed of lattice decomposition of three different iron ores were tested. Russian Krivoj Rog (hematite), Jugok concentrate (magnetite) and Polish siderite were used for structural investigations. In order to estimate the degree of crystallographic destruction of the material, x‐ray diffractometry was used. Contrary to the usual large dilution associated with fusion, experiments with minimum flux contribution were carried out. The heat treatment (fusion) of samples was performed in graphite crucibles. The minimum flux technique was compared with dilution fusion (Pt‐Au crucibles) on 32 iron ore standards.
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