Article contents
Characterization of carbon and iron nanostructures synthesized by the DC arc discharge method: influence of the location in the reactor and of the pressure
Published online by Cambridge University Press: 14 December 2005
Abstract
X-ray diffraction, Mössbauer spectroscopy, Scanning Electron Microscopy (SEM) and Transmission Electron Microscopy (TEM) techniques were used to characterize the Fe-C phases in the soots synthesized by the DC arc discharge method. Various equilibrium and non-equilibrium Fe-C compounds were identified, with fractions depending on both the location in the reactor and the helium gas pressure. The soots obtained are composed of the same five phases (C-graphite, α-Fe, γ-Fe, Fe3C and Fe5C2) whatever the helium gas pressure and wherever they are situated in the reactor. However, the location in the reactor has a considerable influence on the size of the particles in the nanostructure. The Fe-C compounds in the Pyrex vessel samples (CL) seem only to be present in the form of nanoparticles embedded in an amorphous gangue, while the water-cooled copper cylinder samples (RS) contain, in addition to these nanoparticles, large composite crystalline particles.
- Type
- Research Article
- Information
- The European Physical Journal - Applied Physics , Volume 32 , Issue 3 , December 2005 , pp. 177 - 185
- Copyright
- © EDP Sciences, 2005
References
![](https://static.cambridge.org/binary/version/id/urn:cambridge.org:id:binary:20161007065644617-0750:S1286004205000947:S1286004205000947_eqnU1.gif?pub-status=live)
![](https://static.cambridge.org/binary/version/id/urn:cambridge.org:id:binary:20161007065644617-0750:S1286004205000947:S1286004205000947_eqnU2.gif?pub-status=live)
- 1
- Cited by