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Promoted nanocrystalline iron was carburized in a differential tubular flow reactor with thermogravimetric measurement of mass changes. The carburization process was carried out in the presence of pure methane under atmospheric pressure at 650 °C to obtain different carburization degrees of the sample. The carburized iron samples were characterized by the X-ray diffraction, high-resolution transmission electron microscope in the energy-dispersive X-ray spectroscopy mode, thermoprogrammable oxidation, and Raman spectroscopy. As a result of the methane decomposition on the nanocrystalline iron the following nanocrystalline products were observed: iron carbide Fe3C, graphite, iron and nanotubes. The crystallinity of the samples increased with the carburization degree.
Wydawca
Czasopismo
Rocznik
Tom
Strony
29--35
Opis fizyczny
Bibliogr. 13 poz., rys., wykr.
Twórcy
autor
autor
autor
- West Pomeranian University of Technology, ul. Pulaskiego 10, 70-322 Szczecin, Poland
Bibliografia
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- [6] ERMAKOVA M.A., ERMAKOV D.YU., CHUVILIN A.L., KUVSHINOV G.G., J. Catal., 201, (2001) 183.
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- [10] FERRARI A.C., ROBERTSON J., Phys. Rev., 61, (2000) 14095.
- [11] BOROWIAK PALEN E., STEPLEWSKA A., BACHMATIUK A., RMMELI H., KALENCZUK R.K., Mater. Sci. Forum, 703, (2010) 636.
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Typ dokumentu
Bibliografia
Identyfikator YADDA
bwmeta1.element.baztech-article-BPW7-0027-0046