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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 |
| BULKS – Masívne supravodiče s optimalizovaným piningom | |
| Bulk Superconductors with optimesed pinning | |
| Program: | Bilateral – other |
| Project leader: | Ing. Diko Pavel, DrSc., akademik US Slovenska |
| Annotation: | The bulk superconductors represent specific progressive material suitable for unique applications in the field of electric machines, levitation transport, energy reservoirs, friction free bearings, and as the source of high permanent magnetic field applicable for example in transport of medicaments, water purification, magnetron sputtering etc. Now, three categiries of bulk superconductors are developed: REBCO bulk singlegrain superconductors, policrystalline bulk superconductors based on MgB2 or based on pnictides. Inthe framework of the project, we will develop unique low price technologies to grow of bulk REBCO crystals with effective pining centers and with eliminated weak links. We will study systems without platinum addition, additional pinning will be induced by micro-alloying with low cost elements and the elimination of weak links will be done by unique technology of high pressure oxygenation. In the case of MgB2 bulks, the technology of Spark Plasma Sintering will be applied. The pnictide bulk superconductors will be prepared by technology excluding Hot Isostatic Pressing. |
| Duration: | 1.1.2014 – 31.12.2015 |
| YBCOCHEM – Chemické nanorozmerové piningové centrá v YBCO supravodičoch | |
| Chemical nanosize pinning centers in YBCO superconductors | |
| Program: | Inter-academic agreement |
| Project leader: | Ing. Diko Pavel, DrSc., akademik US Slovenska |
| Annotation: | The new possibilities of formation of nanosize pinning centers in YBCO superconductors will be investigated. The nanosize pinning centers will be formed by alloying followed by thermo-chemical heat treatment. Mechanisms of pining by nanoparticles will be studied. Obtained results will allow improvement of critical current density in high magnetic fields of coated conductors as well as macroscopic superconducting properties of bulk superconductors |
| Duration: | 1.1.2010 – 31.12.2011 |
| NESPA – Nano-štruktúrované supravodiče pre výkonové aplikácie | |
| NanoEngineered Superconductors for Power Aplications | |
| Program: | FP6 |
| Project leader: | Ing. Diko Pavel, DrSc., akademik US Slovenska |
| Annotation: | Role in the project: IEP will mainly participate in the scientific objectives including trapping of solid nano-particles into Y123 bulk superconductors, their microstructural characterisation and optimisation of mechanical properties. These objectives will be met by preparation and characterisation of samples with special additives influencing nano-particle trapping (plus characterisation of basic superconducting properties), investigation of crack formation and oxygen diffusion during sample oxygenation. IEP will also contribute to the microstructure characterisation training in the framework of NESPA. |
| Project webpage: | http://www.ifw-dresden.de/nespa |
| Duration: | 1.10.2006 – 1.9.2010 |
National
| REBCOAPL – REBCO masívne supravodiče na báze Y, Gd, Sm a Eu pre praktické aplikácie | |
| – | |
| Program: | SRDA |
| Project leader: | Ing. Diko Pavel, DrSc., akademik US Slovenska |
| Annotation: | The project is focused on research and development of selected REBCO bulk singlegrain superconductors (BSS).We will examine YBCO, GdBCO, SmBCO and EUBCO systems, which are currently preferred in terms ofmastering their production technology and specific applications. Based on our latest results, we will focus on thealloying of LREBCO (LRE- light rare earths) with elements that suppress Ba/LRE substitution in the crystal lattice,the addition of nanocrystalline BaCeO3, the bimodal size distribution of pining centres and the configuration ofholes in REBCO BSS. We will apply the research results in the development of BSS production technology withoptimized superconducting and mechanical properties. The use of the research and development results achievedwithin the project is expected by the manufacturer BSS CAN Superconductors s.r.o. |
| Project webpage: | https://websrv.saske.sk/uef/oddelenia-a-laboratoria/laboratorium-materialovej-fyziky/ |
| Duration: | 1.7.2022 – 30.6.2026 |
| 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 |
| HECOSTE – Vysokopevné elektrotechnické kompozitné ocele | |
| High strength electrotechnical composite steels | |
| Program: | SRDA |
| Project leader: | RNDr. Škorvánek Ivan, CSc. |
| Duration: | 1.7.2012 – 31.12.2015 |
| CFNT MVEP – Centrum fyziky nízkych teplôt a materiálového výskumu v extrémnych podmienkach | |
| Centre of Low Temperature Physics And Material Research at Extreme Conditions | |
| Program: | Centrá excelentnosti SAV |
| Project leader: | prof., RNDr. Samuely Peter, DrSc., akademik US Slovenska |
| Annotation: | Centre of Low Temperature Physics and Material Research at Extreme Conditions Kosice, CLTP-MREC, represents a concept of cutting-edge experimental research institution focused on low temperature physics and material research under extreme conditions. By the extreme conditions apart from low temperatures meant are also high as well as extremely small magnetic fields, extremely high pressures and temperatures, and also reduced dimensions – preparation of nanomaterials and investigations of properties on a nanoscopic scale. Main goal of the project has been to mobilize a common research of constituting organisations and to target it to the area of materials and technologies with a high application potential and technological transfer. The world competitive physics and material science demands the up-to-date research infrastructure. CLTP-MREC has already now in disposal top level instruments and techniques obtained within the framework of the European structural funds, Framework Programmes and other grant schemes but as the most important added value the Centre deems its capability to develop own unique scientific methods, instruments and technologies. The Centre belongs to a dozen world laboratories able to perform experiments in microkelvin range but it disposes also other unique techniques for processing and characterization of materials in high magnetic fields, and at high pressures and temperatures. In this proposal we will concentrate on development of another top level instruments and technologies as well on a synergetic collaboration of our laboratories which represent an important base of the material R&D in Košice. |
| Project webpage: | http://ofnt.saske.sk |
| Duration: | 1.7.2011 – 30.6.2015 |
| Nanoštruktúrované komplexné oxidy s perovskitovou štruktúrou | |
| Nanostructured complex oxides with perovskite structure | |
| Program: | VEGA |
| Project leader: | Ing. Diko Pavel, DrSc., akademik US Slovenska |
| Annotation: | The new possibilities of formation of nanosize pinning centers in single-grain bulk YBa2Cu3O7 superconductorswill be investigated. The nanosize pinning centers will be formed by alloying followed by thermo-chemical heattreatment or by trapping of ex-situ nano- or submicron particles by growing crystal. Mechanisms of pining bynanoparticles will be studied. Obtained results will allow improvement of critical current density as well asmacroscopic superconducting properties of bulk superconductors.The nanostructured polycrystalline manganates exhibiting colossal magnetoresistence and magnetocaloric effectwill be prepared and their structure, magnetic and transport properties will be characterized. |
| Duration: | 1.1.2010 – 31.12.2012 |