Magnetic and Structural Properties of Nitrified FINEMET Powder Using by Mechanical Milling Method

Abstract:

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The magnetic and structural properties of FINEMET [Fe73.5Si13.5B9Nb3Cu1 wt %] amorphous powder were investigated after nitrification and mechanical milling. Fe-based amorphous powder were nitrified and crystallized simultaneously at 550°Cusing by ammonia(NH3) gas. Nitrified powder exhibited iron nitride phase such as γ′-Fe4N, Fe3N and α″-Fe16N2. Nitrified particles were more brittle than raw particles. As a result, nanometer sized nitride powder were fabricated by high energetic ball milling method. The saturation magnetization(Ms) and coercivity(Hc) of nitrified powder were increased due to nitride phase.

Info:

Periodical:

Materials Science Forum (Volumes 558-559)

Edited by:

S.-J.L. Kang, M.Y. Huh, N.M. Hwang, H. Homma, K. Ushioda and Y. Ikuhara

Pages:

1313-1316

DOI:

10.4028/www.scientific.net/MSF.558-559.1313

Citation:

S. M. Hong et al., "Magnetic and Structural Properties of Nitrified FINEMET Powder Using by Mechanical Milling Method", Materials Science Forum, Vols. 558-559, pp. 1313-1316, 2007

Online since:

October 2007

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Price:

$35.00

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