Phase diagram of calcium at high pressure and high temperature

S. Anzellini; D. Errandonea; S. G. MacLeod; P. Botella; D. Daisenberger; J. M. De'Ath; J. Gonzalez-Platas; J. Ibanez; M. I. McMahon; K. A. Munro; C. Popescu; J. Ruiz-Fuertes; C. W. Wilson

doi:10.1103/PhysRevMaterials.2.083608

Phase diagram of calcium at high pressure and high temperature

S. Anzellini^*, D. Errandonea, S. G. MacLeod, P. Botella, D. Daisenberger, J. M. De'Ath, J. Gonzalez-Platas, J. Ibanez, M. I. McMahon, K. A. Munro, C. Popescu, J. Ruiz-Fuertes, C. W. Wilson

^*Corresponding author for this work

School of Physics and Astronomy

Research output: Contribution to journal › Article › peer-review

Abstract / Description of output

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.

Original language	English
Article number	083608
Number of pages	8
Journal	Physical Review Materials
Volume	2
Issue number	8
DOIs	https://doi.org/10.1103/PhysRevMaterials.2.083608
Publication status	Published - 30 Aug 2018

Keywords / Materials (for Non-textual outputs)

ALKALINE-EARTH METALS
X-RAY-DIFFRACTION
EQUATION-OF-STATE
TRANSITIONS
SYNCHROTRON

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CaPhaseDiagramHPHT_reviewedAccepted author manuscript, 1.05 MB

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Anzellini, S., Errandonea, D., MacLeod, S. G., Botella, P., Daisenberger, D., De'Ath, J. M., Gonzalez-Platas, J., Ibanez, J., McMahon, M. I., Munro, K. A., Popescu, C., Ruiz-Fuertes, J., & Wilson, C. W. (2018). Phase diagram of calcium at high pressure and high temperature. Physical Review Materials, 2(8), Article 083608. https://doi.org/10.1103/PhysRevMaterials.2.083608

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title = "Phase diagram of calcium at high pressure and high temperature",

abstract = "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.",

keywords = "ALKALINE-EARTH METALS, X-RAY-DIFFRACTION, EQUATION-OF-STATE, TRANSITIONS, SYNCHROTRON",

author = "S. Anzellini and D. Errandonea and MacLeod, {S. G.} and P. Botella and D. Daisenberger and De'Ath, {J. M.} and J. Gonzalez-Platas and J. Ibanez and McMahon, {M. I.} and Munro, {K. A.} and C. Popescu and J. Ruiz-Fuertes and Wilson, {C. W.}",

year = "2018",

month = aug,

day = "30",

doi = "10.1103/PhysRevMaterials.2.083608",

language = "English",

volume = "2",

journal = "Physical Review Materials",

issn = "2475-9953",

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T1 - Phase diagram of calcium at high pressure and high temperature

AU - Anzellini, S.

AU - Errandonea, D.

AU - MacLeod, S. G.

AU - Botella, P.

AU - Daisenberger, D.

AU - De'Ath, J. M.

AU - Gonzalez-Platas, J.

AU - Ibanez, J.

AU - McMahon, M. I.

AU - Munro, K. A.

AU - Popescu, C.

AU - Ruiz-Fuertes, J.

AU - Wilson, C. W.

PY - 2018/8/30

Y1 - 2018/8/30

N2 - 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.

AB - 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.

KW - ALKALINE-EARTH METALS

KW - X-RAY-DIFFRACTION

KW - EQUATION-OF-STATE

KW - TRANSITIONS

KW - SYNCHROTRON

U2 - 10.1103/PhysRevMaterials.2.083608

DO - 10.1103/PhysRevMaterials.2.083608

M3 - Article

SN - 2475-9953

VL - 2

JO - Physical Review Materials

JF - Physical Review Materials

IS - 8

M1 - 083608

ER -

Phase diagram of calcium at high pressure and high temperature

Abstract / Description of output

Keywords / Materials (for Non-textual outputs)

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