Projects

National

Povrchové inžinierstvo práškových feromagnetických častíc a štruktúra magneticky mäkkých kompozitov
Surface engineering of powder ferromagnetic particles and structure of soft magnetic composites
Program: VEGA
Project leader: Ing. Bureš Radovan, CSc.
Annotation: The project deals with SMC based on powdered ferromagnetics and electro-insulating ceramics in the form of a continuous network. The research of such materials applied in the field of energy conversion is motivated by increasing performance and efficiency, which is achieved by increasing the working frequency of magnetization. The project aims to investigate the structure of ferromagnetic and dielectric particle interfaces, their influence on the formation of microstructure and the functional properties of compacted SMC materials with a focus on the frequency stability of electromagnetic properties. The high variability of the geometrical characteristics of ferromagnetic microparticles and modifications in the distribution of ceramic nanoparticles provide a large scope for increasing the frequency stability of the functional properties of the composite. The analysis of interphases, structural discontinuities and compaction mechanisms will contribute to clarifying the evolution of electromagnetic properties.
Duration: 1.1.2024 – 31.12.2026
FUCO – Funkčné vlastnosti kompaktovaných kompozitov na báze magnetických častíc s povrchovo modifikovanými vlastnosťami
Functional properties of compacted composites based on magnetic particles with surface-modified properties.
Program: SRDA
Project leader: Ing. Bureš Radovan, CSc.
Annotation: The project is focused on the experimental and theoretical research of the soft magnetic composites in order to improve their functional properties. Magnetic powder composite systems will be prepared by advanced innovative chemical and mechano-chemical routes and powder metallurgy techniques not yet used by default. The series of composite samples will be prepared with insulated ferromagnetic particles of different morphology and properties with properly selected dielectric phases. The expected results will bring the novel advanced materials intensifying the application potential in electrical engineering as well as extend the theoretical modeling the magnetization processes in the soft magnetic composites and build up the database with the data structure utilizable for the application of artificial intelligence in the development of novel materials.
Project webpage: http://www.imr.saske.sk/project/fuco/index.html
Duration: 1.7.2021 – 30.6.2025
Vplyv mikrovlnného žiarenia na štruktúru a vlastnosti práškových funkčných materiálov
Influence of microwave radiation on the structure and properties of powder functional materials
Program: VEGA
Project leader: Ing. Bureš Radovan, CSc.
Annotation: The subject of research is the interaction of MW radiation with functional powder materials with specific electrical and magnetic properties, especially soft magnetic composites (SMC). The aim of the project is to contribute to the explanation of the mechanisms of densification of the MW processed structure of powder composites based on the primary ferromagnetic component and the secondary dielectric component distributed in the volume of the composite as a network. The structural characteristics will be correlated with the electromagnetic and mechanical properties of MW sintered materials in order to contribute to the explanation of changes in the functional properties induced by the interaction of MW radiation with ferromagnets and dielectrics. It is assumed that fundamental knowledge about the relations of process parameters, structure and physical properties will contribute to the application possibilities of MW PM processing. The contribution can also be expected in the field of structural design of SMC.
Duration: 1.1.2021 – 31.12.2023