Cu–Ni nanoalloy phase diagram – Prediction and experiment

0420992 - ÚFM 2015 RIV GB eng J - Journal Article
Sopoušek, J. - Vřešťál, J. - Pinkas, J. - Brož, P. - Buršík, Jiří - Stýskalík, A. - Škoda, D. - Zobač, O. - Lee, J.
Cu–Ni nanoalloy phase diagram – Prediction and experiment.
Calphad - Computer Coupling of Phase Diagrams and Thermochemistry. Roč. 45, June (2014), s. 33-39. ISSN 0364-5916. E-ISSN 1873-2984
Institutional support: RVO:68081723
Keywords : nanoalloy * phase diagram * thermodynamic modeling
Subject RIV: BJ - Thermodynamics
Impact factor: 1.370, year: 2014

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.
Permanent Link: http://hdl.handle.net/11104/0228203