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High-pressure phase diagrams of Na2CO3 and K2CO3. / Gavryushkin, Pavel N.; Bekhtenova, Altyna; Lobanov, Sergey S. et al.

In: Minerals, Vol. 9, No. 10, 599, 01.10.2019.

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

Harvard

Gavryushkin, PN, Bekhtenova, A, Lobanov, SS, Shatskiy, A, Likhacheva, AY, Sagatova, D, Sagatov, N, Rashchenko, SV, Litasov, KD, Sharygin, IS, Goncharov, AF, Prakapenka, VB & Higo, Y 2019, 'High-pressure phase diagrams of Na2CO3 and K2CO3', Minerals, vol. 9, no. 10, 599. https://doi.org/10.3390/min9100599

APA

Gavryushkin, P. N., Bekhtenova, A., Lobanov, S. S., Shatskiy, A., Likhacheva, A. Y., Sagatova, D., Sagatov, N., Rashchenko, S. V., Litasov, K. D., Sharygin, I. S., Goncharov, A. F., Prakapenka, V. B., & Higo, Y. (2019). High-pressure phase diagrams of Na2CO3 and K2CO3. Minerals, 9(10), [599]. https://doi.org/10.3390/min9100599

Vancouver

Gavryushkin PN, Bekhtenova A, Lobanov SS, Shatskiy A, Likhacheva AY, Sagatova D et al. High-pressure phase diagrams of Na2CO3 and K2CO3. Minerals. 2019 Oct 1;9(10):599. doi: 10.3390/min9100599

Author

Gavryushkin, Pavel N. ; Bekhtenova, Altyna ; Lobanov, Sergey S. et al. / High-pressure phase diagrams of Na2CO3 and K2CO3. In: Minerals. 2019 ; Vol. 9, No. 10.

BibTeX

@article{0a2a869ac0934af284ec404a005aa82e,
title = "High-pressure phase diagrams of Na2CO3 and K2CO3",
abstract = "The phase diagrams of Na 2 CO 3 and K 2 CO 3 have been determined with multianvil (MA) and diamond anvil cell (DAC) techniques. In MA experiments with heating, γ -Na 2 CO 3 is stable up to 12 GPa and above this pressure transforms to P63 /mcm-phase. At 26 GPa, Na2 CO3 - P63 /mcm transforms to the new phase with a diffraction pattern similar to that of the theoretically predicted Na2 CO3 - P21 /m. On cold compression in DAC experiments, γ -Na2 CO3 is stable up to the maximum pressure reached of 25 GPa. K2 CO3 shows a more complex sequence of phase transitions. Unlike γ Na2 CO3, γ -K2 CO3 has a narrow stability field. At 3 GPa, K2 CO3 presents in the form of the new phase, called K2 CO3 -III, which transforms into another new phase, K2 CO3 -IV, above 9 GPa. In the pressure range of 9–15 GPa, another new phase or the mixture of phases III and IV is observed. The diffraction pattern of K2 CO3 -IV has similarities with that of the theoretically predicted K2 CO3 - P21 /m and most of the diffraction peaks can be indexed with this structure. Water has a dramatic effect on the phase transitions of K2 CO3. Reconstruction of the diffraction pattern of γ -K2 CO3 is observed at pressures of 0.5–3.1 GPa if the DAC is loaded on the air.",
keywords = "Carbonate, Density functional theory, Diamond anvil cell, Global carbon cycle, Indexing, Laser heating, Multi anvil apparatus, Resistive heating, 6 GPA, laser heating, NYEREREITE, COMPRESSIBILITY, TOTAL-ENERGY CALCULATIONS, resistive heating, multi anvil apparatus, global carbon cycle, FUSION CURVE, TRANSITIONS, carbonate, OLDOINYO-LENGAI, indexing, CRYSTAL-STRUCTURE, SYSTEM NA2CO3-CACO3, SODIUM-CARBONATE, density functional theory, diamond anvil cell",
author = "Gavryushkin, {Pavel N.} and Altyna Bekhtenova and Lobanov, {Sergey S.} and Anton Shatskiy and Likhacheva, {Anna Yu} and Dinara Sagatova and Nursultan Sagatov and Rashchenko, {Sergey V.} and Litasov, {Konstantin D.} and Sharygin, {Igor S.} and Goncharov, {Alexander F.} and Prakapenka, {Vitali B.} and Yuji Higo",
note = "Funding Information: Funding: This research was funded by Russian Science Foundation (project No 14-17-00609-P). SSL was supported by Helmholtz Young Investigators Group CLEAR (VH-NG-1325). Publisher Copyright: {\textcopyright} 2019 by the authors. Licensee MDPI, Basel, Switzerland.",
year = "2019",
month = oct,
day = "1",
doi = "10.3390/min9100599",
language = "English",
volume = "9",
journal = "Minerals",
issn = "2075-163X",
publisher = "MDPI AG",
number = "10",

}

RIS

TY - JOUR

T1 - High-pressure phase diagrams of Na2CO3 and K2CO3

AU - Gavryushkin, Pavel N.

AU - Bekhtenova, Altyna

AU - Lobanov, Sergey S.

AU - Shatskiy, Anton

AU - Likhacheva, Anna Yu

AU - Sagatova, Dinara

AU - Sagatov, Nursultan

AU - Rashchenko, Sergey V.

AU - Litasov, Konstantin D.

AU - Sharygin, Igor S.

AU - Goncharov, Alexander F.

AU - Prakapenka, Vitali B.

AU - Higo, Yuji

N1 - Funding Information: Funding: This research was funded by Russian Science Foundation (project No 14-17-00609-P). SSL was supported by Helmholtz Young Investigators Group CLEAR (VH-NG-1325). Publisher Copyright: © 2019 by the authors. Licensee MDPI, Basel, Switzerland.

PY - 2019/10/1

Y1 - 2019/10/1

N2 - The phase diagrams of Na 2 CO 3 and K 2 CO 3 have been determined with multianvil (MA) and diamond anvil cell (DAC) techniques. In MA experiments with heating, γ -Na 2 CO 3 is stable up to 12 GPa and above this pressure transforms to P63 /mcm-phase. At 26 GPa, Na2 CO3 - P63 /mcm transforms to the new phase with a diffraction pattern similar to that of the theoretically predicted Na2 CO3 - P21 /m. On cold compression in DAC experiments, γ -Na2 CO3 is stable up to the maximum pressure reached of 25 GPa. K2 CO3 shows a more complex sequence of phase transitions. Unlike γ Na2 CO3, γ -K2 CO3 has a narrow stability field. At 3 GPa, K2 CO3 presents in the form of the new phase, called K2 CO3 -III, which transforms into another new phase, K2 CO3 -IV, above 9 GPa. In the pressure range of 9–15 GPa, another new phase or the mixture of phases III and IV is observed. The diffraction pattern of K2 CO3 -IV has similarities with that of the theoretically predicted K2 CO3 - P21 /m and most of the diffraction peaks can be indexed with this structure. Water has a dramatic effect on the phase transitions of K2 CO3. Reconstruction of the diffraction pattern of γ -K2 CO3 is observed at pressures of 0.5–3.1 GPa if the DAC is loaded on the air.

AB - The phase diagrams of Na 2 CO 3 and K 2 CO 3 have been determined with multianvil (MA) and diamond anvil cell (DAC) techniques. In MA experiments with heating, γ -Na 2 CO 3 is stable up to 12 GPa and above this pressure transforms to P63 /mcm-phase. At 26 GPa, Na2 CO3 - P63 /mcm transforms to the new phase with a diffraction pattern similar to that of the theoretically predicted Na2 CO3 - P21 /m. On cold compression in DAC experiments, γ -Na2 CO3 is stable up to the maximum pressure reached of 25 GPa. K2 CO3 shows a more complex sequence of phase transitions. Unlike γ Na2 CO3, γ -K2 CO3 has a narrow stability field. At 3 GPa, K2 CO3 presents in the form of the new phase, called K2 CO3 -III, which transforms into another new phase, K2 CO3 -IV, above 9 GPa. In the pressure range of 9–15 GPa, another new phase or the mixture of phases III and IV is observed. The diffraction pattern of K2 CO3 -IV has similarities with that of the theoretically predicted K2 CO3 - P21 /m and most of the diffraction peaks can be indexed with this structure. Water has a dramatic effect on the phase transitions of K2 CO3. Reconstruction of the diffraction pattern of γ -K2 CO3 is observed at pressures of 0.5–3.1 GPa if the DAC is loaded on the air.

KW - Carbonate

KW - Density functional theory

KW - Diamond anvil cell

KW - Global carbon cycle

KW - Indexing

KW - Laser heating

KW - Multi anvil apparatus

KW - Resistive heating

KW - 6 GPA

KW - laser heating

KW - NYEREREITE

KW - COMPRESSIBILITY

KW - TOTAL-ENERGY CALCULATIONS

KW - resistive heating

KW - multi anvil apparatus

KW - global carbon cycle

KW - FUSION CURVE

KW - TRANSITIONS

KW - carbonate

KW - OLDOINYO-LENGAI

KW - indexing

KW - CRYSTAL-STRUCTURE

KW - SYSTEM NA2CO3-CACO3

KW - SODIUM-CARBONATE

KW - density functional theory

KW - diamond anvil cell

UR - http://www.scopus.com/inward/record.url?scp=85073522725&partnerID=8YFLogxK

U2 - 10.3390/min9100599

DO - 10.3390/min9100599

M3 - Article

AN - SCOPUS:85073522725

VL - 9

JO - Minerals

JF - Minerals

SN - 2075-163X

IS - 10

M1 - 599

ER -

ID: 21927983