Cu-Ni nanoalloy phase diagram - Prediction and experiment

Jiri Sopousek, Jan Vrestal, Jiri Pinkas, Pavel Broz, Jiri Bursik, Ales Styskalik, David Skoda, Ondrej Zobac, Joonho Lee

Research output: Contribution to journalArticle

52 Citations (Scopus)

Abstract

The Cu-Ni nanoalloy phase diagram respecting the nanoparticle size as an extra variable was calculated by the CALPHAD method. The samples of the Cu-Ni nanoalloys were prepared by the solvothermal synthesis from metal precursors. The samples were characterized by means of dynamic light scattering (DLS), infrared spectroscopy (IR), inductively coupled plasma optical emission spectroscopy (ICP/OES), transmission electron microscopy (TEM, HRTEM), and differential scanning calorimetry (DSC). The nanoparticle size, chemical composition, and Cu-Ni nanoparticles melting temperature depression were obtained. The experimental temperatures of melting of nanoparticles were in good agreement with the theoretical CALPHAD predictions considering surface energy.

Original languageEnglish
Pages (from-to)33-39
Number of pages7
JournalCalphad: Computer Coupling of Phase Diagrams and Thermochemistry
Volume45
DOIs
Publication statusPublished - 2014 Jun

Keywords

  • Characterization
  • Nanoalloy
  • Phase diagram
  • Surface energy
  • Thermodynamic modeling

ASJC Scopus subject areas

  • Chemistry(all)
  • Chemical Engineering(all)
  • Computer Science Applications

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  • Cite this

    Sopousek, J., Vrestal, J., Pinkas, J., Broz, P., Bursik, J., Styskalik, A., Skoda, D., Zobac, O., & Lee, J. (2014). Cu-Ni nanoalloy phase diagram - Prediction and experiment. Calphad: Computer Coupling of Phase Diagrams and Thermochemistry, 45, 33-39. https://doi.org/10.1016/j.calphad.2013.11.004