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Implementation of micro-ball nanodiamond anvils for high-pressure studies above 6 Mbar

Title data

Dubrovinsky, Leonid ; Dubrovinskaia, Natalia ; Prakapenka, Vitali B. ; Abakumov, Artem M.:
Implementation of micro-ball nanodiamond anvils for high-pressure studies above 6 Mbar.
In: Nature Communications. Vol. 3 (23 October 2012) . - Article Number 1163.
ISSN 2041-1723
DOI: https://doi.org/10.1038/ncomms2160

Official URL: Volltext

Abstract in another language

Since invention of the diamond anvil cell technique in the late 1950s for studying materials at extreme conditions, the maximum static pressure generated so far at room temperature was reported to be about 400 GPa. Here we show that use of micro-semi-balls made of nanodiamond as second-stage anvils in conventional diamond anvil cells drastically extends the achievable pressure range in static compression experiments to above 600 GPa. Micro-anvils (10–50 μm in diameter) of superhard nanodiamond (with a grain size below ~50 nm) were synthesized in a large volume press using a newly developed technique. In our pilot experiments on rhenium and gold we have studied the equation of state of rhenium at pressures up to 640 GPa and demonstrated the feasibility and crucial necessity of the in situ ultra high-pressure measurements for accurate determination of material properties at extreme conditions.

Further data

Item Type: Article in a journal
Refereed: Yes
Additional notes: Online veröffentlicht am 23. Okt. 2012
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: 28 Jul 2015 14:56
Last Modified: 04 Sep 2015 08:02
URI: https://eref.uni-bayreuth.de/id/eprint/17200