Progress and prospects of hard hexaferrites for permanent magnet applications

C de Julian Fernandez, C Sangregorio… - Journal of Physics D …, 2021 - iopscience.iop.org
Permanent magnets based on hard hexaferrite represent the largest family of magnets being
used today by volume. They generate moderate remanence induction, but present crucial …

Improvement of the magnetic properties of SrFe12O19 ceramics by tailored sintering with SiO2 addition

JC Guzmán-Mínguez, LM Vicente-Arche… - Journal of Alloys and …, 2021 - Elsevier
In order to obtain competitive strontium ferrite sintered magnets, SiO 2 and CaO are added
to avoid exaggerated grain growth. Besides favoring proper densification, these additives …

Magnetic properties improvement through exchange-coupling in hard/soft SrFe12O19/Co nanocomposite

A Alipour, S Torkian, A Ghasemi, M Tavoosi… - Ceramics …, 2021 - Elsevier
In this paper, an exchange spring magnet with a new composition and improved magnetic
performance was prepared and investigated. Accordingly, SrFe 12 O 19/Co nanocomposite …

3D magnetic configuration of ferrimagnetic multilayers with competing interactions visualized by soft X-ray vector tomography

J Hermosa-Muñoz, A Hierro-Rodríguez… - Communications …, 2022 - nature.com
Full control of magnetic properties in exchange coupled systems requires a good
understanding of 3D magnetic configuration with lateral and in-depth resolution. Here we …

[HTML][HTML] Greener processing of SrFe12O19 ceramic permanent magnets by two-step sintering

JC Guzmán-Mínguez, V Fuertes… - Ceramics …, 2021 - Elsevier
With an annual production amounting to 800 kilotons, ferrite magnets constitute the largest
family of permanent magnets in volume, a demand that will only increase as a consequence …

Magnetic simulations of core–shell ferromagnetic bi-magnetic nanoparticles: The influence of antiferromagnetic interfacial exchange

JA Ramos-Guivar, CA Tamanaha-Vegas, FJ Litterst… - Nanomaterials, 2021 - mdpi.com
Magnetic properties of ferromagnetic nanostructures were studied by atomistic simulations
following Monte Carlo and Landau–Lifshitz–Gilbert approaches. First, we investigated the …

Remanence Increase in SrFe12O19/Fe Exchange-Decoupled Hard-Soft Composite Magnets Owing to Dipolar Interactions

JC Guzmán-Mínguez, C Granados-Miralles… - Nanomaterials, 2023 - mdpi.com
In the search for improved permanent magnets, fueled by the geostrategic and
environmental issues associated with rare-earth-based magnets, magnetically hard (high …

Simultaneous Substitution of Fe and Sr in Beta-Tricalcium Phosphate: Synthesis, Structural, Magnetic, Degradation, and Cell Adhesion Properties

SM Kim, KH Yoo, H Kim, YI Kim, SY Yoon - Materials, 2022 - mdpi.com
β-tricalcium phosphate is a promising bone graft substitute material with biocompatibility and
high osteoinductivity. However, research on the ideal degradation and absorption for better …

Expanding the tunability and applicability of exchange-coupled/decoupled magnetic nanocomposites

C Granados-Miralles, A Quesada… - Materials Chemistry …, 2020 - pubs.rsc.org
CoFe2O4/Co–Fe magnetic composites are usually prepared through partial reduction of
CoFe2O4, which often yields monoxides (ie, FeO, CoO) as secondary phases. Since these …

Identifying magnetic phases in chemically ordered and disordered FeAl thin films

A Zarzycki, MS Anwar, R Bali, K Potzger, M Krupinski… - RSC …, 2024 - pubs.rsc.org
Direct magnetic writing of ferromagnetic nanoscale elements provides an alternative
pathway for potential application in data storage or spintronic devices. Magnetic patterning …