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| RBS – Výskum masívnych supravodičov | |
| Research on bulk superconductors | |
| Program: | Other |
| Project leader: | Ing. Diko Pavel, DrSc., akademik US Slovenska |
| Annotation: | The agreement on cooperation between IEP SAS and CAN Superconductorsis focused on research od REBCO bulk supercondyctors for practical applications. |
| Project webpage: | https://websrv.saske.sk/uef/oddelenia-a-laboratoria/laboratorium-materialovej-fyziky/ |
| Duration: | 1.5.2018 – 31.12.2026 |
| UEFSIT – Memorandum o porozumení pre akademické výmeny a spoluprácu medzi Ústavom experimentálnej fyziky SAV a Shibaura Institute of Technology , Japonsko | |
| MEMORANDUM OF UNDERSTANDING FOR ACADEMIC EXCHANGES AND COOPERATION BETWEEN THE INSTITUTE OF EXPERIMENTAL PHYSICS, SLOVAKIA AND SHIBAURA INSTITUTE OF TECHNOLOGY, JAPAN | |
| Program: | Bilateral – other |
| Project leader: | Ing. Diko Pavel, DrSc., akademik US Slovenska |
| Annotation: | 1. The two Institutions will encourage the following activities:1) Exchange of professors and researchers;2) Exchange of students at both undergraduate and postgraduate levels;3) Collaborative research and joint academic meetings;4) Exchange of information, publications and materials for academic purpose; and5) Other activities as may be agreed mutually by the two Institutions. |
| Duration: | 11.7.2014 – 31.12.2017 |
National
| BULKREBCO – Štruktúra, supravodivé a mechanické vlastnosti masívnych REBCO supravodičov | |
| Structure, superconducting and mechanical properties ov bulk REBCO superconductors | |
| Program: | VEGA |
| Project leader: | Ing. Diko Pavel, DrSc., akademik US Slovenska |
| Annotation: | The project is focused on the research of the influence of the structure on the superconducting and mechanical properties of the REBCO bulksingle grain superconductors (BSS). The effect of the bimodal particle size distribution of RE211 particles in the REBCO single crystal will be studied, as well as the effect of alloying. Acquiredthe knowledge will serve to optimize the preparation parameters and structure of REBCO BSS so that they are achievedthe combination of a high value of the trapped magnetic field and levitation force with increased mechanicalstrength. We will use experimental methods of powder metallurgy, bulk single crystal growth, X-ray diffraction, light and electron microstructure analysis, magnetization measurements, measurementsof trapped magnetic field and strength measurement. The project will be solved in cooperation withleading foreign laboratories within the formal (SIT Tokyo, JTU Shanghai, CAN Superconductors) andinformal (University of Cambridge, CRISTMAT Caen, FzÚ Praha, ) cooperation. |
| Project webpage: | https://websrv.saske.sk/uef/oddelenia-a-laboratoria/laboratorium-materialovej-fyziky/ |
| Duration: | 1.1.2022 – 31.12.2024 |
| BMREBCO – Vývoj REBCO supravodičov pre biomedicínske aplikácie | |
| Development of REBCO superconductors for biomedical applications | |
| Program: | SRDA |
| Project leader: | Ing. Diko Pavel, DrSc., akademik US Slovenska |
| Annotation: | The project focuses on the development of REBCO bulk singlegrain superconductors (BSS) for biomedical applications. Their use is envisaged by the small enterprise CRYOSOFT s.r.o. Košice for design of equipments for the magnetic separation of cells and for the magnetic transport of drugs. For these applications, REBCO BSS will be developed for use at temperatures that can be achieved by cryocooling (30-50K). We will study YBCO, SmBCO and GdBCO systems that can meet the requirements for the expected applications. The raw material price for YBCO BSS is lower than for SmBCO and GdBCO BSS, however, the SmBCO and GdBCO are reaching higher values of trapped magnetic field. Within the project solution, the optimized composition and the preparation technology of REBCO BSS will be found in order to achieve efficient pining in high magnetic fields below temperature of liquid nitrogen, which is a prerequisite for achieving high critical current density and high trapped magnetic field. The critical current density will be improved through chemical pining, refining RE211 particles, adding nanofibers. We will take advantage of our previous results in basic and applied research of REBCO BSS, some of which are patent-protected. |
| Project webpage: | https://websrv.saske.sk/uef/oddelenia-a-laboratoria/laboratorium-materialovej-fyziky/ |
| Duration: | 1.8.2018 – 30.6.2022 |
| SUMAC – Supravodivá a magnetokalorická keramika | |
| Superconducting and magnetocaloric ceramics | |
| Program: | VEGA |
| Project leader: | Ing. Diko Pavel, DrSc., akademik US Slovenska |
| Annotation: | Research under the project will be focused mainly on understanding the complex phenomena associated with the crystallization of REBCO bolk singlecrystalline superconductors and the development of new efficient processes for their preparation. Part of the capacity will be devoted to research bulk superconductors based on superconducting pnictides and to search for new superconducting materials suitable for making bulk superconductors. Research of magnetocaloric ceramics based on perovskite manganites with a structure similar to REBCO superconductor, will focus on the preparation of new composite materials with a wide magnetic phase transitions suitable for practical applications. The project will be designed in cooperation with foreign universities and research centers: SIT Tokyo; Cambridge University; CRISTMAS Caen; JTU Shanghai; CNRS Grenoble; KAERI South Korea. |
| Project webpage: | WWW.saske.sk |
| Duration: | 1.1.2016 – 31.12.2018 |
| SUPRABULK – Masívne supravodiče | |
| Bulk Superconductors | |
| Program: | SRDA |
| Project leader: | Ing. Diko Pavel, DrSc., akademik US Slovenska |
| Annotation: | The project is focussed on the microstructural design of bulk superconductors. Bulk superconductors with selected substitutions will be prepared by already mastered TSMG process as well as by progressive infiltration technology and thermal treatments for redistribution or clustering of substitution will be applied. Secondary particles will be refined by additions of cerium compounds instead of commonly used platinum addition. The influence of preparation parameters and the type of cerium compound will be studied.The microscopic and macroscopic superconducting properties, structure and microstructure will be analysed. The comprehensive model of the microstructure nature of superconduting properies of these materials will be developed. |
| Duration: | 1.10.2013 – 30.9.2017 |
| Supravodivá a magnetokalorická keramika s perovskitovou štruktúrou | |
| Superconducting and magnetocaloric ceramics with perovskite structure | |
| Program: | VEGA |
| Project leader: | Ing. Diko Pavel, DrSc., akademik US Slovenska |
| Annotation: | This project is oriented on the study of superconducting and magnetocaloric ceramics with perovskite structure. Inthe centre of our effort is a possibility of redistribution of dopant atoms through thermo-chemical treatments fromrandomly distributed single atoms to larger clusters using thermo-chemical treatments. The influence of thisdopant redistribution on pinning effect in REBCO bulk superconductors as well as on magneto-caloric effect willbe studied. Besides that, the possibilities of secondary particle refinement in REBCO bulk superconductors withCe addition in form of BaCeO3, and elimination of oxygenation cracks in REBCO bulks will be tested. Theinfluence of inter-crystalline surface on phase transformations and magneto-caloric effect will be studied on thesamples with a broad scale of crystalline size and doped with chosen dopants. The main aim of this project is tolook for correlations between preparation, treatments, structure and properties of these materials |
| Duration: | 1.10.2013 – 31.12.2015 |