The Ni–Ni2P Phase Diagram at 6 GPa with Implication to Meteorites and Super-Reduced Terrestrial Rocks | Sciact - CRIS-system of Boreskov Institute of Catalysis

The Ni–Ni2P Phase Diagram at 6 GPa with Implication to Meteorites and Super-Reduced Terrestrial Rocks Full article

Journal

High Pressure Research
ISSN: 0895-7959 , E-ISSN: 1477-2299

Output data

Year: 2019, Volume: 39, Number: 4, Pages: 561 - 578 Pages count : 19 DOI: 10.1080/08957959.2019.1672677

Tags

high pressure; meteorites; Nickel; nickelphosphide; phase diagram; phosphorus; super-reduced rocks; transjordanite

Authors

Litasov Konstantin D. ^1,2 , Shatskiy Anton F. ^1,2 , Minin Daniil A. ¹ , Kuper Konstantin E. ³ , Ohfuji Hiroaki ⁴

Affiliations

1	Sobolev Institute of Geology and Mineralogy SB RAS
2	Novosibirsk State University
3	Budker Institute of Nuclear Physics SB RAS
4	Geodynamic Research Center, Ehime University, Matsuyama, Japan

We present experimental results on melting and subsolidus phase relations in the Ni–Ni2P system at 6 GPa and 900–1600°C. The system has four stable phosphides: Ni3P nickelphosphide, Ni8P3/Ni5P2, Ni12P5 and Ni2P transjordanite. The Ni12P5 phase becomes unstable at 900°C and decomposes into Ni5P2 and Ni2P. The eutectic Ni–Ni3P locates at 950°C and 20 mol% P. Ni3P melts incongruently at 1075°C to Ni5P2 and liquid containing 23 mol% P. Ni8P3 and Ni5P2 form a homogeneity range with crystal structure close to Ni5P2. The Ni5P2–Ni2P eutectic locates at 1175°C and 29 mol%. Ni2P melts congruently at 1250°C. The quenched products of nickelphosphide liquid correspond to the eutectics composition and can serve as indicators for reconstructing the P–T–X conditions recorded in meteoritic and terrestrial Fe–Ni–P assemblages. The Ni–P stoichiometries, which were not observed in the equilibrium phase diagrams, including Ni4P and Ni5P, remain enigmatic. © 2019, © 2019 Informa UK Limited, trading as Taylor & Francis Group.

Litasov K.D. , Shatskiy A.F. , Minin D.A. , Kuper K.E. , Ohfuji H.
The Ni–Ni2P Phase Diagram at 6 GPa with Implication to Meteorites and Super-Reduced Terrestrial Rocks
High Pressure Research. 2019. V.39. N4. P.561 - 578. DOI: 10.1080/08957959.2019.1672677 WOS Scopus РИНЦ AN OpenAlex

Submitted:	Mar 10, 2019
Accepted:	Sep 21, 2019
Published print:	Oct 2, 2019
Published online:	Oct 3, 2019

Web of science:	WOS:000488677000001
Scopus:	2-s2.0-85074048814
Elibrary:	41816207
Chemical Abstracts:	2019:1901919
OpenAlex:	W2979033501

DB	Citing
Web of science	3
Scopus	5
OpenAlex	6