Research output: Contribution to journal › Article › peer-review
Phase relations, and mechanical and electronic properties of nickel borides, carbides, and nitrides from ab initio calculations. / Sagatov, Nursultan E.; Abuova, Aisulu U.; Sagatova, Dinara N. et al.
In: RSC Advances, Vol. 11, No. 53, 06.10.2021, p. 33781-33787.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Phase relations, and mechanical and electronic properties of nickel borides, carbides, and nitrides from ab initio calculations
AU - Sagatov, Nursultan E.
AU - Abuova, Aisulu U.
AU - Sagatova, Dinara N.
AU - Gavryushkin, Pavel N.
AU - Abuova, Fatima U.
AU - Litasov, Konstantin D.
N1 - Funding Information: This study was funded by the Ministry of Education and Science of the Republic of Kazakhstan under research project AP09562464 “Search for functional (superhard) materials in Ni– B, Ni–C, and Ni–N systems” and the state-assigned project of the IGM SB RAS. The computations were performed using resources provided by the Novosibirsk State University Supercomputer Center. Publisher Copyright: © 2021 The Royal Society of Chemistry.
PY - 2021/10/6
Y1 - 2021/10/6
N2 - Based on density functional theory and the crystal structure prediction methods, USPEX and AIRSS, stable intermediate compounds in the Ni-X (X = B, C, and N) systems and their structures were determined in the pressure range of 0-400 GPa. It was found that in the Ni-B system, in addition to the known ambient-pressure phases, the new nickel boride, Ni2B3-Immm, stabilizes above 202 GPa. In the Ni-C system, Ni3C-Pnma was shown to be the only stable nickel carbide which stabilizes above 53 GPa. In the Ni-N system, four new phases, Ni6N-R3, Ni3N-Cmcm, Ni7N3-Pbca, and NiN2-Pa3, were predicted. For the new predicted phases enriched by a light-element, Ni2B3-Immm and NiN2-Pa3, mechanical and electronic properties have been studied.
AB - Based on density functional theory and the crystal structure prediction methods, USPEX and AIRSS, stable intermediate compounds in the Ni-X (X = B, C, and N) systems and their structures were determined in the pressure range of 0-400 GPa. It was found that in the Ni-B system, in addition to the known ambient-pressure phases, the new nickel boride, Ni2B3-Immm, stabilizes above 202 GPa. In the Ni-C system, Ni3C-Pnma was shown to be the only stable nickel carbide which stabilizes above 53 GPa. In the Ni-N system, four new phases, Ni6N-R3, Ni3N-Cmcm, Ni7N3-Pbca, and NiN2-Pa3, were predicted. For the new predicted phases enriched by a light-element, Ni2B3-Immm and NiN2-Pa3, mechanical and electronic properties have been studied.
KW - CRYSTAL-STRUCTURE
KW - PRESSURES
KW - PREDICTION
KW - STABILITY
KW - HARDNESS
KW - FE7C3
KW - BORON
UR - http://www.scopus.com/inward/record.url?scp=85120423499&partnerID=8YFLogxK
U2 - 10.1039/d1ra06160g
DO - 10.1039/d1ra06160g
M3 - Article
C2 - 35497551
VL - 11
SP - 33781
EP - 33787
JO - RSC Advances
JF - RSC Advances
SN - 2046-2069
IS - 53
ER -
ID: 34689679