Cu–Ni nanoalloy phase diagram – Prediction and experiment

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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	CuNo_NPs__Sopousek_a_kol_CALPHAD_final_off_print.pdf
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.
Related projects:	Fázové diagramy nanoslitin, jejich výpočty a ověření. CEITEC - Central European Institute of Technology