Effects of Mechanical Alloying on the Structure and Properties of Iron Powders

Abstract:

A nanostructured iron, elaborated from pure elemental powders by mechanical milling at high energy was characterized by different types of technical of analysis. Scanning electron microscopes (SEM) and laser scattering machine have showed the variation in the size and the shape of particles according to different milling times. Powders obtained were characterized with X-ray diffraction (XRD) , the latter diffraction patterns indicated the body centered cubic (bcc) structure. The crystalline grain was about 13 nm size after only a few hours of milling time. The measurement of both coercive field (H_c) and maximal magnetization (M_s) revealed a change in the magnetic behavior of our samples.

• Periodical: Defect and Diffusion Forum (Volume 364)
• Pages: 132-138
• DOI: https://doi.org/10.4028/www.scientific.net/DDF.364.132
• Online since: June 2015
• Authors: F. Lemdani, Mohammed Azzaz, K. Taibi, A. Lounis
• Keywords: Coercivity, Fe Powders, Nanostructure, Planetary Ball Milling, X-Ray Diffraction

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