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By the method of the equilibrium vapor saturation there was determined the arsenic activity in the liquid diluted Cu-Fe-As and Cu-Fe-As-Mischmetal alloys a the temperature 1823 K. The measurements were carried out for the following concentrations of components: arsenic from x = 0.008 to x = 0.23: Mischmetal from x = 0.0059 to x = 0.036: iron from x. = 0.05 to x = 0.016. The Cu-As alloy was accepted...
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