Combined method for obtaining ultradispersed powders of vanadium oxides and carbide / Nikolaenko I. V.,Krasovskaya A. E.,Shveikin G. P. // RUSSIAN JOURNAL OF APPLIED CHEMISTRY. - 2015. - V. 88, l. 1. - P. 35-39.

ISSN/EISSN:

1070-4272 / 1608-3296

Type:

Article

Abstract:

New opportunity to synthesize nano- and ultradispersed powdered materials by combining of two procedures, classical liquid-phase precipitation and low-temperature microwave calcination, at a rather simple instrumentation is described. It was found in precipitation of precursors that, depending on the synthesis conditions (solution pH, amount of carbon, synthesis on the vessel surface or in the solution bulk), particles of hydrated vanadium oxide have different morphologies. It was also found that precursor powders have an insignificant microporosity, which is preserved in the final products in trace amounts upon thermal treatment of samples. Intermediate and final vanadium products were synthesized in an electromagnetic field in a flow of argon, their phase composition and structure were examined in the stages of thermolysis, reduction, and carbidization, and their lattice constants were calculated. The morphology, size, and particle size distribution in the samples under study were determined.

Author keywords:

CEMENTED CARBIDES; WC-CO; ULTRAFINE

DOI:

10.1134/S1070427215010061

Web of Science ID:

ISI:000352906800006

Соавторы в МНС:

—

Другие поля

Поле	Значение
Month	JAN
Publisher	MAIK NAUKA/INTERPERIODICA/SPRINGER
Address	233 SPRING ST, NEW YORK, NY 10013-1578 USA
Language	English
EISSN	1608-3296
Keywords-Plus	CEMENTED CARBIDES; WC-CO; ULTRAFINE
Research-Areas	Chemistry
Web-of-Science-Categories	Chemistry, Applied
Author-Email	nikolaenko@ihim.uran.ru
Funding-Acknowledgement	Russian Foundation for Basic Research {[}15-08-05357\_a]
Funding-Text	The study was financially supported by the Russian Foundation for Basic Research (project no. 15-08-05357\_a).
Number-of-Cited-References	8
Usage-Count-Since-2013	15
Journal-ISO	Russ. J. Appl. Chem.
Doc-Delivery-Number	CF9SL