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Дата последнего поиска статьи во внешних источниках: 18 июля 2013 г.
Аннотация:Using mechanochemical processing, we prepared nonequilibrium Co–C solid solutions super
saturated with carbon to above 7 at %. Xray diffraction characterization showed that the formation of fcc Co1 – xCx solid solutions was accompanied by an increase in the probability of deformation stacking faults.
In Co + C mixtures containing more than 10 at % carbon, the fcc solid solution converted to the metastable cobalt carbide Co3C with an orthorhombic structure. We assessed the thermal stability of the nonequilibrium Co1 – xCx solid solutions and the heat effect of the decomposition of the cobalt carbide Co3C: –ΔH = 23 kJ/mol.