Abstract
Ion-plasma sputtering and codeposition of Mo and Pb ultrafine particles have been used for the first time to prepare solid solutions that are alloys over the whole composition range of the binary system, which were obtained in the form of coatings; this confirms the thermal-fluctuation melting and coalescence of small particles. When coatings are formed by molybdenum and lead nanolayers less than 1 nm thick, the mutual dissolution of the components with the formation of solid solutions in each other takes place; in this case, beginning from a concentration of ∼25 at % Pb in the alloy, lead atoms give their crystal symmetry for the formed lattice. A new phase was found that was prepared directly in the course formation; it was identified as the Mo3Pb compound with the A15 body-centered cubic structure. X-ray diffraction data for the identification of the phases were determined. The upper temperature limit of the existence of the Mo3Pb compound has been found and the unit cell whose volume is 0.1290 nm3 has been constructed.
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