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Skupina Nano materiálov a Aplikovaného Magnetizmu

Skupina Nano materiálov a Aplikovaného Magnetizmu Riešiteľský kolektív : Ivan Škorvánek Jozef Kováč J ozef Marcin Peter Kulík

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Skupina Nano materiálov a Aplikovaného Magnetizmu

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  1. Skupina Nanomateriálov a Aplikovaného Magnetizmu Riešiteľský kolektív: Ivan Škorvánek Jozef Kováč Jozef Marcin Peter Kulík Jana Turčanová (PhD)

  2. Riešená problematika 2007 • magneticky mäkké a magneticky tvrdé nanokryštalické zliatinypripravované z amorfných prekurzorov • nové materiály pre magnetickú refrigeráciu • magnetické nanočasticena báze Au, Ag a prechodových kovov

  3. Grantové projekty (2007) • VEGA 2/7169Nové nanokryštalické magneticky mäkké a magneticky tvrdé materiály so zlepšenými funkčnými vlastnosťami   (2007-2009) • APVV-0413-06(s FÚ SAV) Komplexné kovové zliatiny (2007-2009) • COST P17 - Electromagnetic Processing of Materials,Improvement of functional properties of Fe- and Co-based nanocrystalline magnetic materials by heat treatment in magnetic field(2006-2009) • Cex – NANOSMART Centrum Excelentnosti SAV pre Nanoštruktúrne Materiály(2007 – 2010)

  4. CC Publikácie 2007 • I. Škorvánek, J. Kováč, J. Marcin, P. Švec and D. Janičkovič, Magnetocaloric effect in amorphous and nanocrystalline Fe81−xCrxNb7B12 (x = 0 and 3.5) alloys, Materials Science and Engineering: A 449–451 (2007) 460–463, 2. P. Baláž, L. Takacs, E. Godočíková, I. Škorvánek, J. Kováč and W.S.Choi, Preparation of nanosized antimony by mechanochemical reduction of antimony sulphide Sb2S3 Journal of Alloys and Compounds 434–435 (2007) 773–775 3. M. Deanko, M. Paluga, D.M. Kepaptsoglou, D. Muller, P. Mrafko, D. Janičkovič, E. Hristoforou, I. Škorvánek, P. Švec, Pecularities of electrical resistivity during transformations in amorphous and nanocrystalline alloys, Journal of Alloys and Compounds 434–435 (2007) 248–251 4. I. Škorvánek, J. Marcin, J. Turčanová, M. Wojcik, K. Nesteruk, D. Janičkovič, P. Švec Field induced anisotropy and stability of soft magnetic properties towards hightemperature in Co-rich nanocrystalline FeCoNbB alloys, Journal of Magnetism and Magnetic Materials 310 (2007) 2494–2496 5. E. Godočíková, P. Baláž, L. Takacs, V. Šepelák, I. Škorvánek, E. Gock, Sb/FeSnano-composite prepared by mechanochemical reduction, Kovové Materiály, 45 (2007) 99-104 • P. Kollár, D. Olekšákova, J. Fuzer, J. Kováč, S. Roth, K. Polanski, The magnetic properties of powdered and compacted microcrystalline permalloy, Journal of Magnetism and Magnetic Materials 310 (2007) 2609–2611 7. A.Zeleňáková, D.Olekšáková, J. Degmová, J. Kováč, P. Kolár, M. Kusý, P. Sovák Structural and magntic properties of mechanically alloyed FeCo powders, Journal of Magnetism and Magnetic Materials. Vol. 316, no. 2 (2007), p. e519-e522

  5. Soft Magnetic Fe(Cr)-based alloys for magnetocaloric applications at RT

  6. Set of M(T) curves for annealed Fe81Nb7B12

  7. Magnetic Entropy Change

  8. Set of M(T) curves for Pr13Fe87

  9. Magnetic Entropy Change for Pr13Fe87

  10. Effect of heat treatment in longitudinal and transverse field vs Co-content in (Fe1-xCox)81Nb7B12 (annealing at 773 K/1h)

  11. Hard Magnetic FePtNbB-based nanocrystalline alloys Hc FePtNbB / HcFeNiNbB~106 !!!

  12. Ďakujem za pozornosť!

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