High-pressure behavior of otavite (CdCO 3 )

R. Minch, D. H. Seoung, L. Ehm, B. Winkler, K. Knorr, L. Peters, L. A. Borkowski, J. B. Parise, Yongjae Lee, L. Dubrovinsky, W. Depmeier

Research output: Contribution to journalArticle

18 Citations (Scopus)

Abstract

The high-pressure, room temperature behavior of otavite (CdCO 3 ) was investigated by angle-dispersive synchrotron radiation powder diffraction up to 40 GPa, Raman spectroscopy up to 23 GPa and quantum mechanical calculations based on density functional theory. The calcite-type structure of CdCO 3 is stable up to at least ∼19 GPa as shown by Raman spectroscopy. The compression mechanism was obtained from structure refinements against the diffraction data. The quantum mechanical calculations propose a calcite-aragonite phase transition to occur at about 30 GPa. The existence of a pressure-induced phase transition is supported by the Raman and diffraction experiments. Evidence for the transformation is given by broadening of X-ray reflections and external Raman bands starting from about 19 GPa in both experiments.

Original languageEnglish
Pages (from-to)251-257
Number of pages7
JournalJournal of Alloys and Compounds
Volume508
Issue number2
DOIs
Publication statusPublished - 2010 Oct 22

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Calcium Carbonate
Calcite
Raman spectroscopy
Diffraction
Phase transitions
Synchrotron radiation
Density functional theory
Experiments
X rays
Temperature
Powder Diffraction

All Science Journal Classification (ASJC) codes

  • Mechanics of Materials
  • Mechanical Engineering
  • Metals and Alloys
  • Materials Chemistry

Cite this

Minch, R., Seoung, D. H., Ehm, L., Winkler, B., Knorr, K., Peters, L., ... Depmeier, W. (2010). High-pressure behavior of otavite (CdCO 3 ) Journal of Alloys and Compounds, 508(2), 251-257. https://doi.org/10.1016/j.jallcom.2010.08.090
Minch, R. ; Seoung, D. H. ; Ehm, L. ; Winkler, B. ; Knorr, K. ; Peters, L. ; Borkowski, L. A. ; Parise, J. B. ; Lee, Yongjae ; Dubrovinsky, L. ; Depmeier, W. / High-pressure behavior of otavite (CdCO 3 ) In: Journal of Alloys and Compounds. 2010 ; Vol. 508, No. 2. pp. 251-257.
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Minch, R, Seoung, DH, Ehm, L, Winkler, B, Knorr, K, Peters, L, Borkowski, LA, Parise, JB, Lee, Y, Dubrovinsky, L & Depmeier, W 2010, ' High-pressure behavior of otavite (CdCO 3 ) ', Journal of Alloys and Compounds, vol. 508, no. 2, pp. 251-257. https://doi.org/10.1016/j.jallcom.2010.08.090

High-pressure behavior of otavite (CdCO 3 ) . / Minch, R.; Seoung, D. H.; Ehm, L.; Winkler, B.; Knorr, K.; Peters, L.; Borkowski, L. A.; Parise, J. B.; Lee, Yongjae; Dubrovinsky, L.; Depmeier, W.

In: Journal of Alloys and Compounds, Vol. 508, No. 2, 22.10.2010, p. 251-257.

Research output: Contribution to journalArticle

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AU - Minch, R.

AU - Seoung, D. H.

AU - Ehm, L.

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AU - Knorr, K.

AU - Peters, L.

AU - Borkowski, L. A.

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AU - Dubrovinsky, L.

AU - Depmeier, W.

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Minch R, Seoung DH, Ehm L, Winkler B, Knorr K, Peters L et al. High-pressure behavior of otavite (CdCO 3 ) Journal of Alloys and Compounds. 2010 Oct 22;508(2):251-257. https://doi.org/10.1016/j.jallcom.2010.08.090