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Stability and breakdown of Ca13CO3 melt associated with formation of 13C-diamond in static high pressure experiments up to 43 {GPa} and 3900 K

Title data

Spivak, A. V. ; Litvin, Yu. A. ; Ovsyannikov, Sergey V. ; Dubrovinskaia, Natalia ; Dubrovinsky, Leonid:
Stability and breakdown of Ca13CO3 melt associated with formation of 13C-diamond in static high pressure experiments up to 43 {GPa} and 3900 K.
In: Journal of Solid State Chemistry. Vol. 191 (2012) . - 102 - 106.
ISSN 0022-4596
DOI: https://doi.org/10.1016/j.jssc.2012.02.041

Official URL: Volltext

Abstract in another language

Melting of calcium carbonate Ca13CO3, stability of the melt and its decomposition were studied in static high pressure experiments at pressures of 11–43 {GPa} and temperatures of 1600–3900 K using diamond anvil cell technique with laser heating. We observed formation of 13C-graphite (below 16 GPa) and 13C-diamond (between 16 and 43 GPa) on decomposition of the Ca13CO3 melt at temperatures above 3400 K. At temperatures below 3400 K congruent melting of calcium carbonate was confirmed. The experimental results were applied to construction of the phase diagram of CaCO3 up to 43 {GPa} and 3900 K focusing at the melting curve of calcium carbonate and the decomposition phase boundary of CaCO3 melt.

Further data

Item Type: Article in a journal
Refereed: Yes
Keywords: Laser heating
Institutions of the University: Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences > Chair Crystallography
Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences > Professur Materialphysik und Technologie bei extremen Bedingungen > Professur Materialphysik und Technologie bei extremen Bedingungen - Univ.-Prof. Dr. Natalia Doubrovinckaia
Faculties
Faculties > Faculty of Mathematics, Physics und Computer Science
Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences
Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences > Professur Materialphysik und Technologie bei extremen Bedingungen
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 530 Physics
Date Deposited: 30 Jul 2015 06:40
Last Modified: 17 Apr 2018 11:57
URI: https://eref.uni-bayreuth.de/id/eprint/17247