Publication details

Cu–Ni nanoalloy phase diagram – Prediction and experiment

Authors

SOPOUŠEK Jiří VŘEŠŤÁL Jan PINKAS Jiří BROŽ Pavel BURŠÍK Jiří STÝSKALÍK Aleš ŠKODA David ZOBAČ Ondřej LEE Joonho

Year of publication 2014
Type Article in Periodical
Magazine / Source CALPHAD-COMPUTER COUPLING OF PHASE DIAGRAMS AND THERMOCHEMISTRY
MU Faculty or unit

Central European Institute of Technology

Citation
Web http://yadda.icm.edu.pl/yadda/element/bwmeta1.element.elsevier-10d0e0df-971c-36d4-9d50-3d8102c58420
Doi http://dx.doi.org/10.1016/j.calphad.2013.11.004
Field Physical chemistry and theoretical chemistry
Keywords nanoalloy; phase diagram;thermodynamic modeling;characterization;surface energy
Attached files
Description 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.
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