A5021700332- Magnetic Properties and Applications
- Magnetic Properties of Alloys
- Metallic Glasses and Amorphous Alloys
- Magnetic properties of thin films
- Microstructure and Mechanical Properties of Steels
- Electromagnetic wave absorption materials
- Powder Metallurgy Techniques and Materials
- Magnetic Properties and Synthesis of Ferrites
- Advanced materials and composites
- Aluminum Alloys Composites Properties
- Non-Destructive Testing Techniques
- Electric Motor Design and Analysis
- Magnetic Field Sensors Techniques
- Geomagnetism and Paleomagnetism Studies
- Metallurgy and Material Forming
- Microwave-Assisted Synthesis and Applications
- Aluminum Alloy Microstructure Properties
- High Entropy Alloys Studies
- Advanced Sensor and Energy Harvesting Materials
- Mormonism, Religion, and History
- High-Temperature Coating Behaviors
- Characterization and Applications of Magnetic Nanoparticles
- Induction Heating and Inverter Technology
- Surface Roughness and Optical Measurements
Institute of Materials Research of the Slovak Academy of Sciences
2019-2025
Slovak Academy of Sciences
2019-2025
A.S. Watson (Netherlands)
2023
University of Pavol Jozef Šafárik
2010-2019
Institute of Physics of the Slovak Academy of Sciences
2010-2019
The transition from the traditional "post-analysis" strategy for developing soft magnetic materials to an innovative "pre-design" one is highly desirable development of advanced electrical devices. In this work, we present creation a machine learning (ML) model capable accurately predicting properties (JS, HC, μ, ρ) Fe–Si–Al alloys based on their composition. Through extensive ML experiments employing various algorithms commonly utilized in ML-assisted science, including SVM, RFR, KNR, XGB,...
Soft magnetic ferromagnetic/insulator composites are complex objects in terms of structure and properties. They depend on many different parameters, among which one the main ones is amount insulator. In this work, effect MgO content magnetization processes Fe/MgO studied detail by using a wide combination properties analysis methods. Several series samples with steps up to 0.1 wt % were prepared standard powder metallurgy operations such as dry mixing, cold pressing, sintering. The study...
The present work describes the process of creation and analysis first dataset containing processing parameters functional properties soft magnetic composites (SMC). All data were obtained experimentally using Fe-3% MgO system. When creating samples, such as a size nanoparticles, pressing pressure, sintering temperature, time atmosphere varied. In total, 282 samples with unique combination obtained. each sample, density, real part complex permeability at different frequencies, coercivity,...
Abstract The study aims to evaluate the influence of surface modification Fe powder on magnetic behavior soft compacts and composites that can possibly enhance their properties. smoothing ferromagnetic particle surfaces led a decrease in total energy loss as most evident positive impact all investigated classes (max. by 11% for small, 63–125 μm particle-based annealed compacts, at max. induction 0.5 T frequency 100 Hz) partial increase specific electrical resistivity 47% small Fe@SiO 2...
Iron is the most widespread ferromagnetic used in soft magnetic composites. Ferromagnetic powders are usually pressed at relatively high pressure to required shape before heat treatment. The functional properties of materials and composites strongly depend on pressing parameters. In this paper, densification pure powder iron was investigated a wide range 2.5 GPa. Correlation microstructure, density, mechanical with studied detail. Compressibility analysis based Equation state for...
Frequency dependence of energy losses iron-phenolphormaldehyde resin composite materials in relation to the movability domain walls during magnetization process has been studied. The usual three-component concept separation total proposed for case magnetic composites by introducing simplifications classical calculation and pointing out different frequency excess (also called anomalous) comparison with homogeneous materials, which was explained dependences a number movable walls. Experimental...
The aim of this work was to investigate the influence microstructural features on soft magnetic properties.The materials chosen for were two types Epstein strips commercially produced non-oriented electrical steels by U.S. Steel Košice.The AC properties in 0.2-100 Hz frequency range obtained measurements hysteresis loops a fluxmeter based non-standard single sheet hysteresisgraph.The grain size and domains structure partial contributions (hysteresis, eddy current anomalous) total losses is...
The paper presents the relations for irreversible permeability at initial magnetization curve, derived and verified selected soft magnetic materials (FeSi NiFe steel sheets, compacted sintered powder, non-sintered warm Fe powder Fe-phenolphormaldehyde resin composites). derivation was based on Steinmetz law DC energy losses. Verification of performed by comparison experimental calculated dependences versus induction, where empirical functions in were found. For sheet all composites allowed...