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Home > Issues > SearchCrystal Structure and Magnetic Properties of Co-Mo Alloys Produced by Mechanical Alloying
Journal of Magnetics, Volume 25, Number 1, 31 Mar 2020, Pages 36-42
J. A. Betancourt-Cantera * 
(CONACYT-Corporación Mexicana de Investigación en Materiales, Ciencia y Tecnología # 790,), A. M. Bolarín-Miró (Área Académica de Ciencias de la Tierra y Materiales, UAEH, Carr. Pachuca-Tulancingo Km. 4.5, Pachuca, Hidalgo, 42184, México), F. Sánchez-De Jesús (Área Académica de Ciencias de la Tierra y Materiales, UAEH, Carr. Pachuca-Tulancingo Km. 4.5, Pachuca, Hidalgo, 42184, México), L. G. Betancourt-Cantera (Área Académica de Ciencias de la Tierra y Materiales, UAEH, Carr. Pachuca-Tulancingo Km. 4.5, Pachuca, Hidalgo, 42184, México)
(CONACYT-Corporación Mexicana de Investigación en Materiales, Ciencia y Tecnología # 790,), A. M. Bolarín-Miró (Área Académica de Ciencias de la Tierra y Materiales, UAEH, Carr. Pachuca-Tulancingo Km. 4.5, Pachuca, Hidalgo, 42184, México), F. Sánchez-De Jesús (Área Académica de Ciencias de la Tierra y Materiales, UAEH, Carr. Pachuca-Tulancingo Km. 4.5, Pachuca, Hidalgo, 42184, México), L. G. Betancourt-Cantera (Área Académica de Ciencias de la Tierra y Materiales, UAEH, Carr. Pachuca-Tulancingo Km. 4.5, Pachuca, Hidalgo, 42184, México)
Abstract
We report the analysis of the crystal structure and the magnetic properties of Co100-XMoX alloys (0 < x < 100, Δx
=10), obtained by mechanical alloying using a shaker mixer mill, at room temperature for 7 h. Crystal structure,
morphology and magnetic properties of the Co-Mo system were characterized through XRD (X-ray diffraction),
SEM (scanning electron microscopy) and VSM (vibrating sample magnetometry). The results showed
different completely soluble solid solution, in almost all compositions. Williamson-Hall method revealed an
increase in the crystallite size, decreased with the molybdenum content, from 27.34 nm to 8.02 nm for 0 to 100
wt.% of Mo, respectively. Saturation magnetization and the magnetocrystalline anisotropy, showed the same
behavior, a diminution with the increase of the molybdenum content. However, the coercivity increased with the
increment in Mo content, reaching a maximum of 63.79 kA/m for Co20Mo80.
=10), obtained by mechanical alloying using a shaker mixer mill, at room temperature for 7 h. Crystal structure,
morphology and magnetic properties of the Co-Mo system were characterized through XRD (X-ray diffraction),
SEM (scanning electron microscopy) and VSM (vibrating sample magnetometry). The results showed
different completely soluble solid solution, in almost all compositions. Williamson-Hall method revealed an
increase in the crystallite size, decreased with the molybdenum content, from 27.34 nm to 8.02 nm for 0 to 100
wt.% of Mo, respectively. Saturation magnetization and the magnetocrystalline anisotropy, showed the same
behavior, a diminution with the increase of the molybdenum content. However, the coercivity increased with the
increment in Mo content, reaching a maximum of 63.79 kA/m for Co20Mo80.
Keywords: mechanical alloying; Co-Mo alloys; crystal structure; magnetic properties; magnetocrystalline anisotropy
DOI: https://doi.org/10.4283/JMAG.2020.25.1.036
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