SYNTHESIS AND MORPHOLOGICAL CHARACTERIZATION OF NANOCRYSTALLINE POWDERS OBTAINED BY A GAS CONDENSATION METHOD

Authors
DJEKOUN A BOUZABATA B ALLEG S GRENECHE JM OTMANI A
Citation
A. Djekoun et al., SYNTHESIS AND MORPHOLOGICAL CHARACTERIZATION OF NANOCRYSTALLINE POWDERS OBTAINED BY A GAS CONDENSATION METHOD, Annales de chimie, 23(4), 1998, pp. 557-562
Citations number
23
Categorie Soggetti
Chemistry,"Material Science
Journal title
Annales de chimie → ACNP
ISSN journal
01519107
Volume
23
Issue
4
Year of publication
1998
Pages
557 - 562
Database
ISI
SICI code
0151-9107(1998)23:4<557:SAMCON>2.0.ZU;2-5
Abstract
The preparation of nanocrystalline powders of Fe and Fe50Ni50 has been performed by a gas-condensation method under pure helium atmosphere. The characterization of the prepared materials which was carried out b y means of Transmission Electron Microscopy, X-rays diffraction and Mo ssbauer Spectrometry, evidences for the presence of oxide phases. Fe a nd FeNi based ultrafine particles are observed with a size comprised w ithin the range 10-70 nm and they occur as clusters or chains.