Some features of nanodispersed and micron-size nickel powders produced by hydrogen reduction in the eddy magnetic field
https://doi.org/10.17073/1997-308X-2016-1-4-11
Abstract
The study covers some kinetic regularities observed in hydrogen reduction processes of nanodisperse and micron-size nickel powders in a rigid layer, in a layer subjected to high power travelling magnetic field, and in an eddy layer created by ferromagnetic bodies subjected to such field. The process kinetic parameters were calculated both under the linear heating and in isothermal conditions using the Freeman–Carroll and McKewan models, respectively. The properties of the original, intermediary and final products were examined using such methods as thermogravimetric analysis, X-ray diffraction, measurements of the specific surface area by low temperature nitrogen adsorption and scanning electron microscopy.
About the Authors
V. M. Nguyen
National University of Science and Technology «MISIS»
Russian Federation
Russian Federation
postgraduate student, Department of functional nanosystems and high-temperature materials (FNS&HTM),
119049, Moscow, Leninsky pr., 4
Yu. V. Konyukhov
National University of Science and Technology «MISIS»
Russian Federation
Russian Federation
PhD. Sci. (Eng.), associate prof., Department of FNS&HTM,
119049, Moscow, Leninsky pr., 4
D. I. Ryzhonkov
National University of Science and Technology «MISIS»
Russian Federation
Russian Federation
Dr. Sci. (Eng.), Corresponding Member of the RANS, prof., Department of FNS&HTM,
119049, Moscow, Leninsky pr., 4
S. I. Kotov
National University of Science and Technology «MISIS»
Russian Federation
Russian Federation
postgraduate student, Department of FNS&HTM,
119049, Moscow, Leninsky pr., 4
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For citations:
Nguyen V.M., Konyukhov Yu.V., Ryzhonkov D.I., Kotov S.I. Some features of nanodispersed and micron-size nickel powders produced by hydrogen reduction in the eddy magnetic field. Powder Metallurgy аnd Functional Coatings (Izvestiya Vuzov. Poroshkovaya Metallurgiya i Funktsional'nye Pokrytiya). 2016;(1):4-11. (In Russ.) https://doi.org/10.17073/1997-308X-2016-1-4-11
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