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, Anna 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) . - pp. 102-106.
ISSN 0022-4596
DOI: https://doi.org/10.1016/j.jssc.2012.02.041

Official URL:

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 > Professor Materials Physics and Technology at Extreme Conditions > Professor Materials Physics and Technology at Extreme Conditions - 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 > Professor Materials Physics and Technology at Extreme Conditions
Result of work at the UBT:	Yes
DDC Subjects:	500 Science > 530 Physics
Date Deposited:	30 Jul 2015 06:40
Last Modified:	14 Jul 2022 11:34
URI:	https://eref.uni-bayreuth.de/id/eprint/17247