Titlebar

Export bibliographic data
Literature by the same author
plus on the publication server
plus at Google Scholar

 

High-pressure synthesis of ultraincompressible hard rhenium nitride pernitride Re₂(N₂)(N)₂ stable at ambient conditions

Title data

Bykov, Maxim ; Chariton, Stella ; Fei, Hongzhan ; Fedotenko, Timofey ; Aprilis, Georgios ; Ponomareva, Alena V. ; Tasnádi, Ferenc ; Abrikosov, Igor A. ; Merle, Benoit ; Feldner, Patrick ; Vogel, Sebastian ; Schnick, Wolfgang ; Prakapenka, Vitali B. ; Greenberg, Eran ; Hanfland, Michael ; Pakhomova, Anna ; Liermann, Hanns-Peter ; Katsura, Tomoo ; Dubrovinskaia, Natalia ; Dubrovinsky, Leonid:
High-pressure synthesis of ultraincompressible hard rhenium nitride pernitride Re₂(N₂)(N)₂ stable at ambient conditions.
In: Nature Communications. Vol. 10 (25 February 2019) . - Art.Nr. 2994.
ISSN 2041-1723
DOI: https://doi.org/10.1038/s41467-019-10995-3

Abstract in another language

High-pressure synthesis in diamond anvil cells can yield unique compounds with advanced properties, but often they are either unrecoverable at ambient conditions or produced in quantity insufficient for properties characterization. Here we report the synthesis of metallic, ultraincompressible (K0 = 428(10) GPa), and very hard (nanoindentation hardness 36.7(8) GPa) rhenium nitride pernitride Re2(N2)(N)2. Unlike known transition metals pernitrides Re2(N2)(N)2 contains both pernitride N24− and discrete N3− anions, which explains its exceptional properties. Re2(N2)(N)2 can be obtained via a reaction between rhenium and nitrogen in a diamond anvil cell at pressures from 40 to 90 GPa and is recoverable at ambient conditions. We develop a route to scale up its synthesis through a reaction between rhenium and ammonium azide, NH4N3, in a large-volume press at 33 GPa. Although metallic bonding is typically seen incompatible with intrinsic hardness, Re2(N2)(N)2 turned to be at a threshold for superhard materials.

Further data

Item Type: Article in a journal
Refereed: Yes
Institutions of the University: 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 > Chair Crystallography
Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences > Chair Crystallography > Chair Crystallography - Univ.-Prof. Dr. Sander van Smaalen
Faculties > Faculty of Mathematics, Physics und Computer Science > Group Material Sciences > Professor Materials Physics and Technology at Extreme Conditions
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
Result of work at the UBT: Yes
DDC Subjects: 500 Science > 530 Physics
Date Deposited: 12 Apr 2021 12:12
Last Modified: 27 Apr 2021 06:29
URI: https://eref.uni-bayreuth.de/id/eprint/64650