Abstract
Fe96−XCoXC4 (x = 0, 10, 20, 30, 40 at. %) alloys were obtained by mechanical alloying of Fe, C and Co powders using high-energy milling. The structural and magnetic properties of the alloy system were analyzed by X-ray diffraction, Scanning Electron Microscopy (SEM), Vibrating Sample Magnetometer (VSM) and Mössbauer Spectrometry at room temperature. The X-ray diffraction patterns showed a BCC-FeCoC structure phase for all samples, as well as a lattice parameter that slightly decreases with Co content. The saturation magnetization and coercive field were analyzed as a function of Co content. The Mössbauer spectra were fitted with a hyperfine magnetic field distribution showing the ferromagnetic behavior and the disordered character of the samples. The mean hyperfine magnetic field remained nearly constant (358 T) with Co content.
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Acknowledgments
This work was supported by the Universidad Tecnológica de Pereira. We are very grateful to Ph.D Andres Rosales from Universidad Nacional de Colombia for performing VSM measurements, Ph.D Juan Munoz Saldana from CINVESTAV – Querétaro for EDAX and XRD measurements and Ph.D Humberto Bustos from Universidad del Tolima, for performing Mössbauer spectrometrymeasurements.
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This article is part of the Topical Collection on Proceedings of the 15th Latin American Conference on the Applications of the Mössbauer Effect (LACAME 2016), 13–18 November 2016, Panama City, Panama
Edited by Juan A. Jaén
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Rincón Soler, A.I., Rodríguez Jacobo, R.R., Medina Barreto, M.H. et al. Structural and magnetic properties of FeCoC system obtained by mechanical alloying. Hyperfine Interact 238, 48 (2017). https://doi.org/10.1007/s10751-017-1419-5
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DOI: https://doi.org/10.1007/s10751-017-1419-5