Nanostructure refinement and phase formation of flash annealed FeNi-based soft magnetic alloys

Article Materials Science, Multidisciplinary

Combined experimental and DFT studies of Co82Zr12V6-xBx melt-spun ribbons to investigate structure and magnetic properties

A. Oraon et al.

Summary: This study investigates the enhancement of hard magnetic properties of Zr-Co-V-B alloys through V and B doping, and explores the effects of annealing at different temperatures on the magnetic properties.

JOURNAL OF MAGNETISM AND MAGNETIC MATERIALS (2022)

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Review Chemistry, Physical

Electromagnetic assisted thermal processing of amorphous and nanocrystalline soft magnetic alloys: Fundamentals and advances

Ahmed Talaat et al.

Summary: This review discusses the rapid thermal processing of amorphous and nanocrystalline soft magnetic alloys in electromagnetic fields, focusing on the effects of heating on structural and magnetic properties. It also presents future development trends and challenges in the field.

JOURNAL OF ALLOYS AND COMPOUNDS (2021)

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Article Materials Science, Multidisciplinary

Nanostructure and compositional segregation of soft magnetic FeNi-based nanocomposites with multiple nanocrystalline phases

P. Ohodnicki et al.

Summary: This study investigates the production and multi-phase crystallization process of soft magnetic metal amorphous nanocomposite alloys. Through high-resolution transmission electron microscopy and atom probe tomography, the microstructure and compositional partitioning of an optimally annealed FeNi-based MANC alloy are detailed. The results demonstrate orientation relationships between different nanocrystals and evidence of segregation and partitioning in the alloy system.

JOURNAL OF MATERIALS RESEARCH (2021)

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Article Materials Science, Multidisciplinary

Development of high Bs Fe-Ni-based metal amorphous nanocomposite by optimization of glass-forming ability

Y. Krimer et al.

Summary: Thermocalc simulations were used to identify compositions with good glass-forming ability in (Fe-70 Ni-30)(x)(B-Si-Nb)(100-x) alloys, with x = 82% and x = 85% showing improved magnetic properties in comparison to previously developed x = 80% alloys. The 85% alloy exhibited a two-step crystallization process, while annealing studies showed low coercivity and high magnetic induction for certain compositions. TEM results revealed significant crystallization in the as-cast ribbon, with the 85% alloy showing small, uniformly distributed grains suitable for producing nanocrystalline alloy as-cast. The parameter Delta T-xg was found to be in the range of 12-23 degrees C, indicating the temperature range in which the material can be thermomechanically processed.

JOURNAL OF MATERIALS RESEARCH (2021)

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Review Chemistry, Physical

Review on soft magnetic metal and inorganic oxide nanocomposites for power applications

A. Talaat et al.

Summary: Oxide-based nanocomposites have the potential for higher switching frequencies, but scalable synthesis techniques are limited; this review identifies opportunities for developing high-performance nanocomposite systems through microstructure engineering; it focuses on optimizing soft magnetic properties and powder metallurgy techniques.

JOURNAL OF ALLOYS AND COMPOUNDS (2021)

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Article Nanoscience & Nanotechnology