Enhancing glass forming ability and magnetic properties of Co–Fe–Si–B metallic glasses by similar element substitution: Experimental and theoretical investigations

Jia, Shangke; Jiang, Yuhang; Chen, Shunwei; Han, Xiujun

doi:10.1016/j.commatsci.2022.111639

Cited by 5 publications

(2 citation statements)

References 44 publications

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“…Elemental doping has emerged as a vital technique for adjusting the microcosmic crystal structure of amorphous alloys [ 6 ]. Low Cu doping, in particular, can significantly improve the soft magnetic properties of certain amorphous alloys [ 7 , 8 ].…”

Section: Introductionmentioning

confidence: 99%

Performance of Fluxgate Magnetometer with Cu-Doped CoFeSiB Amorphous Microwire Core

Wang,

Xu,

Zheng

et al. 2024

Sensors

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In this study, we investigated the effects of Cu doping on the performance of CoFeSiB amorphous microwires as the core of a fluxgate magnetometer. The noise performance of fluxgate sensors primarily depends on the crystal structure of constituent materials. CoFeSiB amorphous microwires with varying Cu doping ratios were prepared using melt-extraction technology. The microstructure of microwire configurations was observed using transmission electron microscopy, and the growth of nanocrystalline was examined. Additionally, the magnetic performance of the microwire and the noise of the magnetic fluxgate sensors were tested to establish the relationship between Cu-doped CoFeSiB amorphous wires and sensor noise performance. The results indicated that Cu doping triggers a positive mixing enthalpy and the reduced difference in the atomic radius that enhances the degree of nanocrystalline formation within the system; differential scanning calorimetry analysis indicates that this is due to Cu doping reducing the glass formation capacity of the system. In addition, Cu doping affects the soft magnetic properties of amorphous microwires, with 1% low-doping samples exhibiting better soft magnetic properties. This phenomenon is likely the result of the interaction between nanocrystalline organization and magnetic domains. Furthermore, a Cu doping ratio of 1% yields the best noise performance, aligning with the trend observed in the material’s magnetic properties. Therefore, to reduce the noise of the CoFeSiB amorphous wire sensor, the primary goal should be to reduce microscopic defects in amorphous alloys and enhance soft magnetic properties. Cu doping is a superior preparation method which facilitates control over preparation conditions, ensuring the formation of stable amorphous wires with consistent performance.

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Section: Introductionmentioning

confidence: 99%

Performance of Fluxgate Magnetometer with Cu-Doped CoFeSiB Amorphous Microwire Core

Wang,

Xu,

Zheng

et al. 2024

Sensors

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“…Cu is quite similar to Ni, with their radii being 1.28 and 1.24 Å, respectively. It has been illustrated that the similar element substitution could exert marked influence on the structures and properties, such as the glass forming ability [ 24 ] and magnetic properties [ 25 ]. After the substitution of Ni by the similar element of Cu, Pd-Ni-Cu-P has shown a large GFA, a critical size being over 70 mm [ 26 ], and sluggish crystallization kinetics, enabling it as a good choice for observing structural changes [ 27 , 28 ].…”

Section: Introductionmentioning

confidence: 99%

High-Temperature Liquid–Liquid Phase Transition in Glass-Forming Liquid Pd43Ni20Cu27P10

Zhou

Miao

et al. 2023

Materials

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Liquid–liquid phase transition (LLPT) is a transition from one liquid state to another with the same composition but distinct structural change, which provides an opportunity to explore the relationships between structural transformation and thermodynamic/kinetic anomalies. Herein the abnormal endothermic LLPT in Pd43Ni20Cu27P10 glass-forming liquid was verified and studied by flash differential scanning calorimetry (FDSC) and ab initio molecular dynamics (AIMD) simulations. The results show that the change of the atomic local structure of the atoms around the Cu-P bond leads to the change in the number of specific clusters <0 2 8 0> and <1 2 5 3>, which leads to the change in the liquid structure. Our findings reveal the structural mechanisms that induce unusual heat-trapping phenomena in liquids and advance the understanding of LLPT.

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Atomic structure, thermal stability and isothermal crystallization kinetics of novel Co-based metallic glasses with excellent soft magnetic properties

Taghvaei,

Farajollahi,

Bednarčík

et al. 2023

Journal of Alloys and Compounds

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Enhancing glass forming ability and magnetic properties of Co–Fe–Si–B metallic glasses by similar element substitution: Experimental and theoretical investigations

Cited by 5 publications

References 44 publications

Performance of Fluxgate Magnetometer with Cu-Doped CoFeSiB Amorphous Microwire Core

Performance of Fluxgate Magnetometer with Cu-Doped CoFeSiB Amorphous Microwire Core

High-Temperature Liquid–Liquid Phase Transition in Glass-Forming Liquid Pd43Ni20Cu27P10

Atomic structure, thermal stability and isothermal crystallization kinetics of novel Co-based metallic glasses with excellent soft magnetic properties

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