Synthesis of the Fe-6.5% wt. Si Alloy by Mechanical Alloying

Abstract:

Fe-Si alloy with a large Si content of 6.5 wt. % is obtained in nanocrystalline state by mechanical alloying of elemental iron and silicon powders. The mechanical alloying process was carried out using a high energy ball mill in argon atmosphere. Samples were collected after 0.5, 1, 2, 4, 6 and 8 hours of ball milling. The X-ray diffraction (XRD) studies indicate that after 4 hours of milling the Fe-Si alloy is formed. The powder magnetisation decreases upon increasing the milling time up to 4 hours as a consequence of the Fe-Si alloy formation. Upon heating, the DSC studies show the Fe₃Si compound formation in the samples milled for milling times lower than 6 hours. Also, the Curie temperature of the alloy was evidenced.

• Periodical: Advanced Engineering Forum (Volume 13)
• Pages: 109-113
• DOI: https://doi.org/10.4028/www.scientific.net/AEF.13.109
• Online since: June 2015
• Authors: Cristina Daniela Stanciu, Florin Popa, Ionel Chicinaş*, Olivier Isnard
• Keywords: Fe-Si Alloy, Mechanical Alloying, Nanocrystalline, Soft Magnetic Material

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