L10 ordered phase formation at solid state reactions in Cu/Au and Fe/Pd thin films

Тип публикации: статья из журнала

Год издания: 2019

Идентификатор DOI: 10.1016/j.jssc.2018.09.009

Ключевые слова: In situ ED, Intermetallic compound, L10 type ordered structure, Order/disorder transformation, Thin film solid state reaction, In situ ED, Intermetallic compound, L10 type ordered structure, Order/disorder transformation, Thin film solid state reaction

Аннотация: To understand the mechanism of mass transfer during solid state reactions and order-disorder transitions the formation processes of CuAuI and L10-FePd ordered structures at solid state reactions in Cu/Au и Fe/Pd bilayer thin films have been carried out using the method of in situ electron diffraction (ED). The value of the long-range order (LRO) parameter has been estimated for the L10 type ordered structures being formed; the order-disorder transition temperatures have been determined. The formation mechanism of the L10 type ordered structures formed at the initial stages of the solid state reaction in the Cu/Au and Fe/Pd thin films has been suggested. In the case of Cu/Au it has been shown that the interdiffusion of copper and gold at the initial stage of the solid state reaction results in the reduced size of the grains of the initial materials, as a result, nanocrystalites of the Cu-Au solid solution are formed, and further, grains of the CuAuI ordered solid solution appear and their growth begins. © 2018 Elsevier Inc.

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Издание

Журнал: Journal of Solid State Chemistry

Выпуск журнала: Vol. 269

Номера страниц: 36-42

ISSN журнала: 00224596

Издатель: Academic Press Inc.

Авторы

  • Zharkov Sergey M. (RAS, Fed Res Ctr KSC SB, Kirensky Inst Phys, Akademgorodok 50-38, Krasnoyarsk 660036, Russia; Siberian Fed Univ, 79 Svobodny Pr, Krasnoyarsk 660041, Russia)
  • Moiseenko Evgeny T. (Siberian Fed Univ, 79 Svobodny Pr, Krasnoyarsk 660041, Russia)
  • Altunin Roman R. (Siberian Fed Univ, 79 Svobodny Pr, Krasnoyarsk 660041, Russia)

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