Determination of the Grüneisen Parameter and the Explicit Part of the Anharmonicity of the Cu-Ni System by the X-ray Method

Authors D.I. Vadets1, V.I. Garashchenko1, O.V. Garashchenko1, O.Y. Romaniv1, Y.I. Fedyshyn2

1National University of Water and Environmental Engineering, 11, Soborna Str., 33028 Rivne, Ukraine

2Stepan Gzhytskyi Lviv National University of Veterinary Medicine and Biotechnologies, 50, Pekars'ka Str., 79010 Lviv, Ukraine

Issue Volume 10, Year 2018, Number 5
Dates Received 15 August 2018, revised manuscript received 20 October 2018, published online 29 October 2018
Citation D.I. Vadets, V.I. Garashchenko, O.V. Garashchenko, et al., J. Nano- Electron. Phys. 10 No 5, 05040 (2018)
PACS Number(s) 61.66.Dk, 65.40.De
Keywords Grüneisen parameter, X-ray (44) , Anharmonism, Crystalline lattice.

The temperature and concentration dependence of the nanometric parameter of the crystalline lattice of solid solutions of the Cu-Ni system within the limits of 293-1073 K, the X-ray characteristic temperature, the actual linear and volumetric expansion factor of the Grüneisen parameter, the universal measure of anharmonicity and the explicit part of the generalization of the anharmonic oscillation measure of atoms of the crystalline lattice of alloys based on Cu and Ni were investigated by X-ray method. The discrepancy between the individual values and the mean values of the Grüneisen parameter was explain. One part of the research results were presented analytically, and the other were presented graphically. Analyzed correlation and discrepancy of experimental results with literary data. The prospect of using a high-temperature X-ray method for determining the Grüneisen parameter in studying the structure and interatomic bonds of solids was substantiated.

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