| Инд. авторы: | Litasov K.D., Shatskiy A.F., Minin D.A., Kuper K.E., Ohfuji H. |
| Заглавие: | The ni–ni2p phase diagram at 6 gpa with implication to meteorites and super-reduced terrestrial rocks |
| Библ. ссылка: | 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. - Vol.39. - Iss. 4. - P.561-578. - ISSN 0895-7959. - EISSN 1477-2299. |
| Внешние системы: | DOI: 10.1080/08957959.2019.1672677; РИНЦ: 41816207; SCOPUS: 2-s2.0-85074048814; |
| Реферат: | eng: 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.
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| Ключевые слова: | Terrestrial rocks; Subsolidus phase relations; nickelphosphide; Liquid containing; High pressure; Eutectics composition; Equilibrium phase diagrams; Phosphorus; Phase diagrams; Nickel compounds; Nickel; Phosphorus compounds; Eutectics; Crystal structure; transjordanite; super-reduced rocks; phosphorus; phase diagram; nickelphosphide; Nickel; meteorites; high pressure; Meteorites; transjordanite; |
| Издано: | 2019 |
| Физ. характеристика: | с.561-578 |