Catastrophic oxidation of copper: A brief reviewстатья

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[1] Belousov V. V., Klimashin A. A. Catastrophic oxidation of copper: A brief review // Metallurgical and Materials Transactions A. — 2012. — Vol. 43, no. 10. — P. 3715–3723. A brief review of the current understanding of copper accelerated oxidation in the presence of low-melting oxides (Bi 2O 3, MoO 3, and V 2O 5) is given. Special attention is paid to the kinetics, thermodynamics, and mechanisms of accelerated oxidation of copper. The mechanisms of two stages (fast and superfast) of the copper accelerated oxidation are considered. It is shown that the fast oxidation of copper occurs by a diffusion mechanism. Oxygen diffusion along the liquid channels in the oxide scale is the rate-limiting step in the overall mechanism. The superfast oxidation of copper occurs by a fluxing mechanism. Realization of the particular mechanism depends on the mass ratio of low-melting oxide to the metal. The mass ratios of low-melting oxide to the metal and the oxygen partial pressures for superfast oxidation of copper are established. A model of the fast oxidation of copper is discussed. © 2012 The Minerals, Metals & Materials Society and ASM International. [ DOI ]

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