- Tytuł:
- Structural Properties of Some Alkali Metal Hydrides at High Temperature and Pressure
- Autorzy:
-
Thakre, V.
Singh, S. - Powiązania:
- https://bibliotekanauki.pl/articles/1030544.pdf
- Data publikacji:
- 2018-01
- Wydawca:
- Polska Akademia Nauk. Instytut Fizyki PAN
- Tematy:
-
hydrides
phase transition
three-body interaction
volume collapse
elastic constants
cohesive energy - Opis:
- In this paper we have developed a realistic interaction potential model to study the high pressure phase transition of ionic alkali-metal compounds KH and NaH, having B₁ structure at room temperature. We have theoretically investigated phase transition pressures and volume collapses of KH and NaH at high temperatures, and found results well suited with available experimental data. The elastic constants and their pressure derivatives are reported first time. The thermodynamical properties of B₁ phase of KH and NaH are also predicted. The inclusion of temperature effect in TBIP makes the present model realistic and suitable for theoretical high-pressure studies.
- Źródło:
-
Acta Physica Polonica A; 2018, 133, 1; 186-193
0587-4246
1898-794X - Pojawia się w:
- Acta Physica Polonica A
- Dostawca treści:
- Biblioteka Nauki
Artykuł