Инд. авторы:	Minin D.A., Shatskiy A.F., Litasov K.D., Ohfuji H.
Заглавие:	The Fe-Fe2P phase diagram at 6 GPa
Библ. ссылка:	Minin D.A., Shatskiy A.F., Litasov K.D., Ohfuji H. The Fe-Fe2P phase diagram at 6 GPa // High Pressure Research. - 2019. - Vol.39. - Iss. 1. - P.50-68. - ISSN 0895-7959. - EISSN 1477-2299.
Внешние системы:	DOI: 10.1080/08957959.2018.1562552; РИНЦ: 38659055; SCOPUS: 2-s2.0-85059326515; WoS: 000459706200003;
Реферат:	eng: Here, we report experimental results on melting and subsolidus phase relations in the Fe-Fe2P system at 6 GPa and 900-1600 degrees C. The system has two P-bearing compounds: Fe3P and Fe2P. X-ray diffraction patterns of these compounds correspond to schreibersite and barringerite, respectively. The Fe-Fe3P eutectic appears at 1075 degrees C and 16 mol% P. Schreibersite (Fe3P) melts incongruently at 1250 degrees C to produce barringerite (Fe2P) and liquid containing 23 mol% P. Barringerite (Fe2P) melts congruently at 1575 degrees C. Maximum solid solution of P in metallic iron at 6 GPa is 5 mol%. As temperature increases to 1600 degrees C, the P solubility in the metallic iron decreases to 0.5 mol%, whereas the P content in coexisting liquid decreases to 3 mol%. The composition of quenched phases from Fe-P melt coincides with the compositions of equilibrium phases at corresponding temperature. Consequently, the composition of quenched products of Fe-P melts in meteorites can be used for reconstruction of P-T conditions of their crystallization under ambient or low pressures or during shock melting by impact collisions.
Ключевые слова:	CORE; CARBONATITE; MODEL; CRYSTAL-STRUCTURE; meteorites; core formation; high-pressure; barringerite; schreibersite; phosphide; phosphorus; Iron; IRON;
Издано:	2019
Физ. характеристика:	с.50-68