Effect of minor Cr addition on the crystallisation process, magnetic, electrochemical and catalytical properties of high induction Fe86B14 alloy

IF 4.3 3区 材料科学 Q2 CHEMISTRY, MULTIDISCIPLINARY Journal of Physics and Chemistry of Solids Pub Date : 2025-03-08 DOI:10.1016/j.jpcs.2025.112687
Tymon Warski , Jon Gutiérrez , Iñaki Orue , Przemysław Zackiewicz , Wojciech Łoński , Rafał Babilas , Aleksandra Kolano-Burian , Łukasz Hawełek
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Abstract

In this work, the effect of minor Cr addition on the thermal stability, crystallisation process, crystal structure, catalytic, magnetic and anti-corrosion properties of Fe86-xCrxB14 (x = 1, 3, 5) melt-spun metallic ribbons has been studied. The thermal analysis determined the characteristic crystallisation temperatures, thermal stability and average activation energy of the α-Fe phase crystallisation. To optimise the magnetic properties (magnetic induction Br, coercivity Hc, core power losses Ps), the amorphous ribbons in the form of wounded toroidal cores were subjected to 20 min of isothermal annealing (260–420 °C). The least lossy materials were obtained at 320 °C with Hc = 6.51–12.9 A/m, Ps(1T@50Hz) = 0.13–0.21 W/kg, Bs = 1.03–1.41T, μ′ = 1889–2289 and characterised as nanocomposite where α-Fe nanocrystals are immersed in the amorphous matrix. Magnetic properties deteriorate due to successive Cr additions. However, the electrochemical studies confirmed the enhancive effect of Cr on the anti-corrosion properties. Moreover, due to the relaxation process and the formation of a passivating layer, the anti-corrosion properties improved even more after the vacuum- and air-annealing process. Lastly, the materials exhibit catalytic properties in the photo-Fenton-like process of Methylene Blue degradation, achieving a dye reduction of 60–80 % after 60 min, enabling their dual-use as magnetic-catalytic materials.
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来源期刊
Journal of Physics and Chemistry of Solids
Journal of Physics and Chemistry of Solids 工程技术-化学综合
CiteScore
7.80
自引率
2.50%
发文量
605
审稿时长
40 days
期刊介绍: The Journal of Physics and Chemistry of Solids is a well-established international medium for publication of archival research in condensed matter and materials sciences. Areas of interest broadly include experimental and theoretical research on electronic, magnetic, spectroscopic and structural properties as well as the statistical mechanics and thermodynamics of materials. The focus is on gaining physical and chemical insight into the properties and potential applications of condensed matter systems. Within the broad scope of the journal, beyond regular contributions, the editors have identified submissions in the following areas of physics and chemistry of solids to be of special current interest to the journal: Low-dimensional systems Exotic states of quantum electron matter including topological phases Energy conversion and storage Interfaces, nanoparticles and catalysts.
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