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Título: | Phase diagram of calcium at high pressure and high temperature |
Autor: | Anzellini, S.; Errandonea, D.; MacLeod, S. G.; Botella, P.; Daisenberger, D.; De'Ath, J. M.; González-Platas, Javier; Ibáñez Insa, Jordi CSIC ORCID ; McMahon, M. I.; Munro, K. A.; Popescu, C.; Ruiz-Fuertes, J.; Wilson, C. W. | Palabras clave: | Alkaline-earth metals X-Ray-diffraction Equation of state Transitions Synchrotron |
Fecha de publicación: | 2018 | Editor: | American Physical Society | Citación: | Physical Review Materials, 2(8): 083608 (2018) | Resumen: | Resistively heated diamond-anvil cells have been used together with synchrotron x-ray diffraction to investigate the phase diagram of calcium up to 50 GPa and 800 K. The phase boundaries between the Ca-I (fcc), Ca-II (bcc), and Ca-III (simple cubic, sc) phases have been determined at these pressure-temperature conditions, and the ambient temperature equation of state has been generated. The equation of state parameters at ambient temperature have been determined from the experimental compression curve of the observed phases by using third-order Birch-Murnaghan and Vinet equations. A thermal equation of state was also determined for Ca-I and Ca-II by combining the room-temperature Birch-Murnaghan equation of state with a Berman-type thermal expansion model. | Versión del editor: | https://doi.org/10.1103/PhysRevMaterials.2.083608 | URI: | http://hdl.handle.net/10261/169878 | DOI: | 10.1103/PhysRevMaterials.2.083608 | E-ISSN: | 2475-9953 |
Aparece en las colecciones: | (Geo3Bcn) Artículos |
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Ibañez_PhysRevMaterials_2_083608.pdf | 1,91 MB | Adobe PDF | Visualizar/Abrir |
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