Инд. авторы:	Sokol A.G., Kruk A.N., Palyanov Y.N., Sobolev N.V.
Заглавие:	Phases of the Fe–C–N system as hosts of mantle carbon and nitrogen: Experimental studies at 7.8 GPa and 1350°C
Библ. ссылка:	Sokol A.G., Kruk A.N., Palyanov Y.N., Sobolev N.V. Phases of the Fe–C–N system as hosts of mantle carbon and nitrogen: Experimental studies at 7.8 GPa and 1350°C // Doklady Earth Sciences. - 2017. - Vol.475. - Iss. 1. - P.780-783. - ISSN 1028-334X. - EISSN 1531-8354.
Внешние системы:	DOI: 10.1134/S1028334X17070091; SCOPUS: 2-s2.0-85026776086; WoS: 000406970700015;
Реферат:	eng: Parts of the Fe–C–N system were studied in experiments at 7.8 GPa and 1350°C. It was shown that the admixture of nitrogen extends considerably the domain of melt stability in the system at temperatures close to the Fe–Fe3C eutectic temperatures. Nitrogen solubility in cementite in equilibrium with the nitrogen- rich melt is below the detection limit of the EMPA technique applied. The metal melt is the only nitrogen concentrator (up to 4 wt % of N) in the range of compositions considered. The data obtained permit the conclusion that, in the case of complete dissolution of carbon and nitrogen, which might occur in the enriched mantle, native iron at ~250 km depth should either be completely molten or consist of a melt and carbide of iron. © 2017, Pleiades Publishing, Ltd.
Ключевые слова:	Carbon and nitrogen; Complete dissolution; Detection limits; Enriched mantle; Eutectic temperature; Nitrogen solubility; nitrogen; metallurgy; mantle chemistry; iron; host rock; experimental study; dissolution; carbon; Nitrogen; Carbides;
Издано:	2017
Физ. характеристика:	с.780-783