Change in Thermophysical Properties and Melting Temperature of Niobium with Increasing Pressure
| Autor: | S. P. Kramynin, E. N. Akhmedov |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
010302 applied physics
Materials science Isochoric process Niobium Thermodynamics chemistry.chemical_element Condensed Matter Physics 01 natural sciences Heat capacity Thermal expansion Isothermal process symbols.namesake chemistry 0103 physical sciences Materials Chemistry symbols Melting point Isobaric process 010306 general physics Debye model |
| Zdroj: | Physics of Metals and Metallography. 120:1027-1032 |
| ISSN: | 1555-6190 0031-918X |
| DOI: | 10.1134/s0031918x19110097 |
| Popis: | Based on the Mie–Lennard-Jones interatomic pair potential and the Einstein crystal model, the thermal equation of state and the pressure dependences of the thermophysical properties of niobium are obtained. The pressure dependences of the Debye temperature, the first, second, and third Gruneisen parameters, isothermal compression modulus, isochoric and isobaric heat capacity, thermal expansion coefficient, and the pressure derivatives of these parameters along the 300 and 3000 K isotherms are studied. The calculations showed good agreement with experimental data. Based on the results obtained, the pressure dependence of the melting point of niobium and its pressure derivative are calculated. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
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