Synthesis, structural and magnetic characterization of spherical high entropy alloy CoCuFeNi particles by hydrogen reduction assisted ultrasonic spray pyrolysis
Author:
Küçükelyas Burak12, Safaltın Şerzat1, Sam Ebru Devrim2, Gurmen Sebahattin1ORCID
Affiliation:
1. Department of Metallurgical and Materials Engineering , Istanbul Technical University , Istanbul , Turkey 2. Department of Metallurgical and Materials Engineering , Bursa Technical University , Bursa , Turkey
Abstract
Abstract
The present study focuses on the synthesis, structural and magnetic characterization of CoCuFeNi high entropy alloy particles. The hydrogen reduction assisted ultrasonic spray pyrolysis method was used to synthesize nanocrystalline quaternary CoCuFeNi particles in a single step. The effect of synthesis temperature on the structure, morphology and the size of particles was investigated. The syntheses were performed at 700 °C, 800 °C, and 900 °C with 0.1 M concentration of metal nitrate salts precursor solution. The structure and morphology of products were characterized through X-ray diffraction, scanning electron microscopy, energy dispersive X-ray spectroscopy, X-ray photoelectron spectroscopy and vibrating sample magnetometer studies. Diffraction pattern based calculations revealed that crystallite sizes of CoCuFeNi particles were in the range of 15.6–26.7 nm. Scanning electron microscopy and energy dispersive spectroscopy investigations showed that particles were agglomerated from crystallites and in spherical morphology with equiatomic elemental composition. According to vibrating sample magnetometry results, soft magnetic properties were observed for CoCuFeNi particles. X-ray photoelectron spectroscopy results showed that the surface has a thin layer of copper oxide.
Publisher
Walter de Gruyter GmbH
Subject
Materials Chemistry,Metals and Alloys,Physical and Theoretical Chemistry,Condensed Matter Physics
Reference73 articles.
1. Yeh, J. W. Ann. Chim.: Sci. Mater. 2006, 31, 633–648. https://doi.org/10.3166/acsm.31.633-648. 2. Yeh, J.-W., Lin, S.-J., Chin, T.-S., Gan, J.-Y., Chen, S.-K., Shun, T.-T., Tsau, C.-H., Chou, S.-Y. Metall. Mater. Trans. 2004, 35, 2533–2536. https://doi.org/10.1007/s11661-006-0234-4. 3. Gao, M. C., Yeh, J.-W., Liaw, P. K., Zhang, Y. High-Entropy Alloys - Fundamentals and Applications; Springer: Basel, 2016. 4. Yeh, J. W., Chen, S. K., Lin, S. J., Gan, J. Y., Chin, T. S., Shun, T. T., Tsau, C. H., Chang, S. Y. Adv. Eng. Mater. 2004, 6, 299–303. https://doi.org/10.1002/adem.200300567. 5. Murty, B. S., Yeh, J.-W., Ranganathan, S. High-entropy Alloys; Butterworth-Heinemann: London, 2014.
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