Research output: Contribution to journal › Article › peer-review
(Fe,Ni)2P allabogdanite can be an ambient pressure phase in iron meteorites. / Litasov, Konstantin D.; Bekker, Tatyana B.; Sagatov, Nursultan E. et al.
In: Scientific Reports, Vol. 10, No. 1, 8956, 02.06.2020.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - (Fe,Ni)2P allabogdanite can be an ambient pressure phase in iron meteorites
AU - Litasov, Konstantin D.
AU - Bekker, Tatyana B.
AU - Sagatov, Nursultan E.
AU - Gavryushkin, Pavel N.
AU - Krinitsyn, Pavel G.
AU - Kuper, Konstantin E.
N1 - We thank two anonymous reviewers for valuable suggestions, which improved the quality of the manuscript. The work was supported by the Russian Science Foundation, grant No. 17-17-01177.
PY - 2020/6/2
Y1 - 2020/6/2
N2 - An orthorhombic modification of (Fe,Ni)2P, allabogdanite, found in iron meteorites was considered to be thermodynamically stable at pressures above 8 GPa and temperatures of 1673 K according to the results of recent static high-pressure and high-temperature experiments. A hexagonal polymorphic modification of (Fe,Ni)2P, barringerite, was considered to be stable at ambient conditions. Experimental investigation through the solid-state synthesis supported by ab initio calculations was carried out to clarify the stability fields of (Fe,Ni)2P polymorphs. Both experimental and theoretical studies show that Fe2P-allabogdanite is a low-temperature phase stable at ambient conditions up to a temperature of at least 773 K and, therefore, is not necessarily associated with high pressures. This is consistent with the textural relationships of allabogdanite in iron meteorites.
AB - An orthorhombic modification of (Fe,Ni)2P, allabogdanite, found in iron meteorites was considered to be thermodynamically stable at pressures above 8 GPa and temperatures of 1673 K according to the results of recent static high-pressure and high-temperature experiments. A hexagonal polymorphic modification of (Fe,Ni)2P, barringerite, was considered to be stable at ambient conditions. Experimental investigation through the solid-state synthesis supported by ab initio calculations was carried out to clarify the stability fields of (Fe,Ni)2P polymorphs. Both experimental and theoretical studies show that Fe2P-allabogdanite is a low-temperature phase stable at ambient conditions up to a temperature of at least 773 K and, therefore, is not necessarily associated with high pressures. This is consistent with the textural relationships of allabogdanite in iron meteorites.
KW - PYROMETAMORPHIC ROCKS
KW - NEUTRON-DIFFRACTION
KW - MAGNETIC-PROPERTIES
KW - HATRURIM FORMATION
KW - CRYSTAL-STRUCTURE
KW - ONELLO
KW - FE2P
KW - MOSSBAUER
KW - PHOSPHIDE
KW - DIAGRAM
UR - http://www.scopus.com/inward/record.url?scp=85085908505&partnerID=8YFLogxK
U2 - 10.1038/s41598-020-66039-0
DO - 10.1038/s41598-020-66039-0
M3 - Article
C2 - 32488079
AN - SCOPUS:85085908505
VL - 10
JO - Scientific Reports
JF - Scientific Reports
SN - 2045-2322
IS - 1
M1 - 8956
ER -
ID: 24457150