Thermophysical Properties of Solid Yttrium–Holmium Solutions in the Temperature Range from Room Temperature to 1400 K
| Autor: | V. V. Meshkov, A. D. Ivliev, A. A. Kurichenko, M. Yu. Chernoskutov |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2020 |
| Předmět: |
Materials science
HEAT TRANSFER ELECTRON SCATTERING RARE EARTHS YTTRIUM chemistry.chemical_element Thermodynamics Thermal diffusivity 01 natural sciences 010305 fluids & plasmas Condensed Matter::Materials Science Thermal conductivity ENERGY SPECTRA HEAT RESISTANCE Impurity 0103 physical sciences MAGNETIC SCATTERING 010302 applied physics RARE EARTH METALS Scattering IMPURITY SCATTERING SPECIFIC HEAT General Engineering DIFFERENT MECHANISMS Yttrium HOLMIUM ALLOYS Condensed Matter Physics ELECTRONS chemistry Heat transfer TEMPERATURE RANGE THERMAL CONDUCTIVITY Holmium RARE EARTH ELEMENTS Solid solution |
| Zdroj: | High Temperature |
| Popis: | The thermophysical properties (thermal diffusivity, specific heat, and thermal conductivity) and resistance of solid solutions (alloys) of rare-earth metals (yttrium and holmium) have been experimentally studied. It is established that, on the whole, these properties obey the same laws as pure rare-earth metals. Heat transfer in Y–Ho alloys at the considered temperatures is mainly performed by electrons as well. The existing quantitative differences between the properties are due to the different influences of the different mechanisms of carrier (electron) scattering. A procedure to separate the contributions to electron scattering based on the Mott model is considered. The roles of phonon-, magnetic-, and impurity-scattering mechanisms are determined. It is established that the magnetic-scattering intensity monotonically decreases upon heating and with a decrease in the holmium concentration. Nordheim’s rule is valid for impurity scattering, which indicates stability of the energy spectrum structure of collective alloy electrons. © 2020, Pleiades Publishing, Ltd. Russian Foundation for Basic Research, РФФИ: 11-08-00275, 14-08-00228 This study was supported by the Russian Foundation for Basic Research, project nos. 11-08-00275 and 14-08-00228. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|