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А. И. Устинов, С. А. Демченков, В. А. Теличко, С. С. Полищук
«Фазовые превращения при нагреве наноструктурированных вакуумных конденсатов Al63Cu26Fe11»
369–378 (2012)

PACS numbers: 61.05.cp, 61.44.Br, 64.70.Nd, 68.60.Dv, 81.07.Bc, 81.15.Jj, 81.40.Wx

Nanostructured vacuum Al63Cu26Fe11 condensates are prepared by electron-beam physical vapour deposition (EB-PVD). Phase transformations forming in the nanostructured vacuum Al63Cu26Fe11 condensates during heating are studied by means of in-situ high-temperature x-ray diffractometry. The nanostructured state of the vacuum condensates is found to transform to the icosahedral phase through intermediate crystalline phases during heating. As shown, the thermal instability of the nanostructured vacuum condensates is caused by its nanoscale composition heterogeneity. Possible reasons of the appearance of such nanoscale composition heterogeneity during electron-beam vacuum deposition of the multicomponent alloy onto substrate at temperature below 300?C???0.5Тm are discussed (here, Тm???872?C is the melting point of the alloy).