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Oxidation Kinetics of Lead Babbit BLi (PbSb15Sn10Li) Modified by Lithium in the Solid State

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Abstract—The results of studying the oxidation kinetics of lithium-modified lead babbit BLi (PbSb15Sn10Li) in a temperature range of 373–473 K are considered. The formed products of alloy oxidation are reveled, and the alloy microstructure is studied. Experiments are carried out using thermogravimetry in air under atmospheric pressure in a temperature range of 373–473 K. In the whole temperature range, the oxidation can be described with a high accuracy by the fourth-order polynomial. A periodical change in the oxidation rate in time is observed in the experiments. The kinetic and energy parameters of the oxidation of the alloys are determined. Lithium additives are found to increase the oxidizability of lead babbit BLi (PbSb15Sn10Li) in the temperature range from 373 to 473 K. Additives of an alloying component substantially refine the alloy microstructure. The products of alloy oxidation are revealed (by X-ray diffraction) to consist of such oxides as PbO, Li2SnO3, Pb2Sb2O7, Sb2O3, Pb3O4, and Sb2O4.

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Correspondence to I. N. Ganiev.

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Translated by E. Yablonskaya

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Ganiev, I.N., Khodzhanazarov, K.M., Odinazoda, K.O. et al. Oxidation Kinetics of Lead Babbit BLi (PbSb15Sn10Li) Modified by Lithium in the Solid State. Russ. Metall. 2023, 347–353 (2023). https://doi.org/10.1134/S0036029523030059

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  • DOI: https://doi.org/10.1134/S0036029523030059

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