Effect of tantalum on phase formation in the Fe-S system / Vershinin A. D.,Mar'evich V. P.,Chumarev V. M.,Selivanov E. N. // RUSSIAN JOURNAL OF INORGANIC CHEMISTRY. - 2007. - V. 52, l. 9. - P. 1459-1463.

ISSN/EISSN:

0036-0236 / нет данных

Type:

Article

Abstract:

Phase formation in the Fe1 - x -Ta (x) -S system with 0 < x < 0.5 has been studied at temperatures up to 1273 K using X-ray diffraction. When the constituent elements are heated to 823 K, troilite (Tr), pyrrhotites (PoI, PoII, and Po-m), and pyrite (FeS2) are formed. Tantalum at these temperatures only insignificantly dissolves in iron sulfides. In the range 823-1273 K, tantalum reacts with pyrrhotites PoII and Po-m and pyrite to yield PoI, FeTa3S6, and alpha-Fe. The solubility limit of tantalum in PoI is near Fe0.98Ta0.02S. The initiation temperature of the reaction between troilite and tantalum producing FeTa3S6 and alpha-Fe is 873 K. The unit cell parameters of tantalum change at 500 K, presumably due to the dissolution of iron and possibly sulfur (iron sulfide).

Author keywords:

SULFUR

DOI:

10.1134/S0036023607090252

Web of Science ID:

ISI:000249630600025

Соавторы в МНС:

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Другие поля

Поле	Значение
Month	SEP
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
Keywords-Plus	SULFUR
Research-Areas	Chemistry
Web-of-Science-Categories	Chemistry, Inorganic \& Nuclear
ResearcherID-Numbers	Chumarev, Vladimir/T-9760-2017 Selivanov, Evgeniy/T-7296-2017
Number-of-Cited-References	14
Usage-Count-Since-2013	2
Journal-ISO	Russ. J. Inorg. Chem.
Doc-Delivery-Number	212XP