Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
The Ni–Ni2P phase diagram at 6 GPa with implication to meteorites and super-reduced terrestrial rocks. / Litasov, Konstantin D.; Shatskiy, Anton F.; Minin, Daniil A. и др.
в: High Pressure Research, Том 39, № 4, 02.10.2019, стр. 561-578.Результаты исследований: Научные публикации в периодических изданиях › статья › Рецензирование
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TY - JOUR
T1 - The Ni–Ni2P phase diagram at 6 GPa with implication to meteorites and super-reduced terrestrial rocks
AU - Litasov, Konstantin D.
AU - Shatskiy, Anton F.
AU - Minin, Daniil A.
AU - Kuper, Konstantin E.
AU - Ohfuji, Hiroaki
N1 - Publisher Copyright: © 2019, © 2019 Informa UK Limited, trading as Taylor & Francis Group.
PY - 2019/10/2
Y1 - 2019/10/2
N2 - 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.
AB - 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.
KW - high pressure
KW - meteorites
KW - Nickel
KW - nickelphosphide
KW - phase diagram
KW - phosphorus
KW - super-reduced rocks
KW - transjordanite
KW - PHOSPHORUS
KW - THERMODYNAMIC PROPERTIES
KW - CRYSTAL-STRUCTURE
KW - NATIVE IRON
KW - P SYSTEM
KW - PERRYITE
KW - EQUILIBRIA
UR - http://www.scopus.com/inward/record.url?scp=85074048814&partnerID=8YFLogxK
U2 - 10.1080/08957959.2019.1672677
DO - 10.1080/08957959.2019.1672677
M3 - Article
AN - SCOPUS:85074048814
VL - 39
SP - 561
EP - 578
JO - High Pressure Research
JF - High Pressure Research
SN - 0895-7959
IS - 4
ER -
ID: 21997036