Studies of the initial stage of the carburisation of nanocrystalline iron with methane

Iwona Kucharewicz 1Urszula Narkiewicz 1Walerian Arabczyk 1Agnieszka Pattek - Janczyk 2

1. Technical University of Szczecin, Institute of Chemical and Environment Engineering, Pulaskiego 10, Szczecin 70-322, Poland
2. Jagiellonian University (UJ), Kraków, Poland


The carburisation of iron is known as a method to improve the hardness of steel. The iron carbide itself can be applied for example for the production of sensors or magnets. It is also an intermediate product in the formation of carbon deposit obtained in the reaction of hydrocarbons with iron.
The aim of this study is to investigate the carburisation mechanism in the interval of carbon concentration below that corresponding to the iron carbide formation.
The nanocrystalline iron (mean size of crystallite-17 nm) iron promoted with small amount of oxides (Al2O3, CaO, K2O) was used in the experiments. The grain fraction of 1,2~1,5 mm was taken. The decomposition of methane has been studied in the temperature range of 400 to 5500C under atmospheric pressure. The mass change of the sample was measured using spring thermobalance and cathetometer, with the accuracy of 0,0001g. The phase composition after carburisation process was characterized using X-ray diffraction and Moessbauer spectroscopy.
At the beginning of the carburisation process the measured increase of the sample mass does not correspond to the determined iron carbide content. The formation of the thin carbon layer on the iron surface is suggested for this area, connected with diffusion of iron atoms to this layer to form on intercalated iron~graphite compounds.

Legal notice
  • Legal notice:

    Copyright (c) Pielaszek Research, all rights reserved.
    The above materials, including auxiliary resources, are subject to Publisher's copyright and the Author(s) intellectual rights. Without limiting Author(s) rights under respective Copyright Transfer Agreement, no part of the above documents may be reproduced without the express written permission of Pielaszek Research, the Publisher. Express permission from the Author(s) is required to use the above materials for academic purposes, such as lectures or scientific presentations.
    In every case, proper references including Author(s) name(s) and URL of this webpage: must be provided.


Related papers
  1. Welcome address
  2. Carbon nanotubes applications for drug and gene delivery
  3. Europejska Platforma Technologiczna Nanomedycyny
  4. ZrO2:Tb nanopowders obtained by coprecipitation method
  5. ZnFe2O4/ZnO core-shell particles obtained by coprecipitation route
  6. Raman scattering from ZnO doped with Fe, Mn and Co nanoparticles
  7. Hydrothermal Synthesis of ZnAl2O4 Spinel
  8. Comparison of Au/ZrO2 materials prepared by precipitation and impregnation methods
  9. Low-frequency Raman scattering from transition-metal-doped ZnO nanoparticles
  10. Surface chemistry of Pr-doped nanocrystalline zirconia
  11. Effect of iron addition on the properties of ZnO obtained by precipitation
  12. Iron-carbon nanofillers for polymers
  13. Poisoning of iron catalyst with sulfur
  14. FMR study of carbon coated cobalt nanoparticles dispersed in paraffin
  15. Temperature dependence of the FMR spectra of polymer composites with nanocrystalline α-Fe/C filler
  16. Catalytic decomposition of ethylene on nanocrystalline cobalt
  17. Ferromagnetic resonance from nanoparticle agglomerates in nonmagnetic matrices
  18. Magnetic resonance study of PTMO - block - PET copolymer filled with a mixture of Fe3O4 and Fe3C nanoparticles at low concentration
  19. Surface diffusion of potassium from iron catalyst
  21. Temperature dependence of microwave resonance absorption studies of α-iron and iron carbide nanoparticle agglomerates in a diamagnetic matrix
  22. Nanocrystallline iron-carbon fillers for polymers
  23. Preparation of the Nanocrystalline Iron Carbide in Reaction of Iron with Methane or Methane/Hydrogen Mixture

Presentation: poster at E-MRS Fall Meeting 2004, Symposium I, by Iwona Kucharewicz
See On-line Journal of E-MRS Fall Meeting 2004

Submitted: 2004-04-21 12:40
Revised:   2009-06-08 12:55
© 1998-2022 pielaszek research, all rights reserved Powered by the Conference Engine