Kinetics of the oxidation of an electroexplosion iron nanopowder during heating in air

Kinetics of the oxidation of an electroexplosion iron nanopowder during heating in air

Detalles Bibliográficos
Parent link:Russian Journal of Physical Chemistry B: Scientific Journal.— , 1982-
Vol. 6, iss. 3.— 2012.— [P. 368-375]
Autor Principal: Korshunov A. V. Andrey Vladimirovich
Summary:Title screen
The regularities of the oxidation of electroexplosion iron nanopowder, produced by the wire electric explosion, heated in air under conditions of linearly increasing temperature and in the isothermal mode are examined. The oxidation process under conditions of linear heating is demonstrated to occur stepwise due to the combined influence of the fractional composition of the powder, its phase composition, and the structure of the oxide layer formed on the surface of the particles. It is shown that, under isothermal conditions (250-600°C), the oxidation of the nanopowder, as opposed to micron-sized powders, obeys a linear law and proceeds in the kinetic regime with E a = 100 ± 7 kJ/mol. The conditions of thermogravimetry analysis at which the thermal self-ignition of the nanopowder occurs are determined. Based on the numerical evaluation of the sample surface heating parameter, the experimentally measured critical temperature is verified.
Режим доступа: по договору с организацией-держателем ресурса
Idioma:inglés
Publicado: 2012
Subjects:
электронный ресурс
труды учёных ТПУ
Acceso en liña:http://dx.doi.org/10.1134/S1990793112050053
Formato: Electrónico Capítulo de libro
KOHA link:https://koha.lib.tpu.ru/cgi-bin/koha/opac-detail.pl?biblionumber=642050

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