Zobrazeno 1 - 10
of 124
pro vyhledávání: '"Spomenka Kobe"'
Autor:
Carlo Burkhardt, Antje Lehmann, Peter Fleissner, Laura Grau, Mirko Trautz, Maximilian Mungenast, Benjamin Podmiljšak, Spomenka Kobe
Publikováno v:
Materials Proceedings, Vol 5, Iss 1, p 87 (2021)
Various anti-corrosion coatings used on commercially available NdFeB-type magnets were comparatively examined for their durability and suitability for magnet reprocessing by hydrogen-assisted recycling (HPMS). Layer thickness and structure were deter
Externí odkaz:
https://doaj.org/article/8509dae1f6294f9a9d58b715052ecaea
Autor:
Awais Ikram, Muhammad Awais, Richard Sheridan, Allan Walton, Spomenka Kobe, Franci Pušavec, Kristina Žužek Rožman
Publikováno v:
Metals, Vol 10, Iss 3, p 418 (2020)
The low-pressure hot-deformation methodology was applied to reprocess the nanocrystalline hydrogenation−disproportionation−desorption−recombination (HDDR) Nd-Fe-B powders from end-of-life (EOL) permanent magnets’ waste to determine the mechan
Externí odkaz:
https://doaj.org/article/cd385172c0334c83bdef89d82ba2df86
Autor:
Andraž Kocjan, Luka Kelhar, Anton Gradišek, Blaž Likozar, Kristina Žagar, Jaafar Ghanbaja, Spomenka Kobe, Jean-Marie Dubois
Publikováno v:
Advances in Materials Science and Engineering, Vol 2017 (2017)
We report on synthesis and characterization of a novel group of compounds based on copper, gadolinium, and calcium. Cu-Ca and Cu-Gd binaries were previously studied while Ca and Gd are known to be immiscible themselves. The effects of substituting Gd
Externí odkaz:
https://doaj.org/article/77ba5396bf9e4fb69e37a043af881aa3
Autor:
Benjamin Podmiljsak, Spomenka Kobe, Tomaž Tomše, Marko Bek, Tomaž Kotnik, Lidija Slemenik Slemenik Perše, Ema Žagar, Boris Saje, Kristina Žužek Rožman, Sašo Šturm
Publikováno v:
SSRN Electronic Journal.
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::2b001f0874d49ba74ecaffeb44a06aaf
https://doi.org/10.2139/ssrn.4200999
https://doi.org/10.2139/ssrn.4200999
Autor:
Kristina Žagar Soderžnik, Spomenka Kobe, Sašo Šturm, Kristina Žužek Rožman, Sandra Drev, Urška Ročnik, Marko Soderžnik, Matic Korent
Publikováno v:
Contemporary Materials. 12
In this work, we present a newly developed, economically efficient method for processing rare-earth Nd-Fe-B magnets based on spark plasma sintering. It makes us possible to retain the technologically essential properties of the produced magnet by con
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::58519fc085c2c2a850c7e9a17958b492
https://doi.org/10.7251/comen2102140k
https://doi.org/10.7251/comen2102140k
Autor:
Kristina Žužek Rožman, Franci Pušavec, Awais Ikram, Muhammad Awais, Allan Walton, Spomenka Kobe, Richard Sheridan
Publikováno v:
Materials
Volume 13
Issue 16
Materials, vol. 13, no. 16, 3528, 2020.
Materials, Vol 13, Iss 3528, p 3528 (2020)
Volume 13
Issue 16
Materials, vol. 13, no. 16, 3528, 2020.
Materials, Vol 13, Iss 3528, p 3528 (2020)
Fully dense spark plasma sintered recycled and fresh HDDR Nd-Fe-B nanocrystalline bulk magnets were processed by surface grain boundary diffusion (GBD) treatment to further augment the coercivity and investigate the underlying diffusion mechanism. Th
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bdc9d6d0315b0b0fa614f90815ea12f8
Autor:
Muhammad Awais, Spomenka Kobe, Allan Walton, Franci Pušavec, Awais Ikram, Richard Sheridan, Kristina Žužek Rožman
Publikováno v:
Metals
Volume 10
Issue 3
Metals, Vol 10, Iss 3, p 418 (2020)
Metals, vol. 10, no. 3, 418, 2020.
Volume 10
Issue 3
Metals, Vol 10, Iss 3, p 418 (2020)
Metals, vol. 10, no. 3, 418, 2020.
The low-pressure hot-deformation methodology was applied to reprocess the nanocrystalline hydrogenation&ndash
disproportionation&ndash
desorption&ndash
recombination (HDDR) Nd-Fe-B powders from end-of-life (EOL) permanent magnets&rsquo
disproportionation&ndash
desorption&ndash
recombination (HDDR) Nd-Fe-B powders from end-of-life (EOL) permanent magnets&rsquo
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_dedup___::40fdf212f623896b95eaca23b40d2914
Autor:
K. Žagar Soderžnik, J. M. D. Coey, Munuswamy Venkatesan, P. Tozman, Matic Korent, J.-M. Dubois, Spomenka Kobe, M. Soderžnik
Publikováno v:
Journal of Magnetism and Magnetic Materials. 460:401-408
Metal-bonded magnets based on the nanocrystalline YCo4.8Fe0.2 powder were produced by hot-compaction using a spark plasma-sintering device. Zn and Zn/Al metallic binders with a melting temperature close to 420 °C were employed to fabricate dense cyl
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::dc0ae51d430770991aed4bd53063f4cf
https://doi.org/10.1016/j.jmmm.2018.04.036
https://doi.org/10.1016/j.jmmm.2018.04.036
Publikováno v:
JOM. 70:2698-2703
An Al–Mn alloy with additions of copper, magnesium, and silicon was prepared and cast into a copper mold. It contains in situ-formed icosahedral quasicrystals (iQCs), as confirmed by electron backscatter diffraction. The aim of this work is to pres
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::84d3f541cec3e511af8273b1b8d43eb8
https://doi.org/10.1007/s11837-018-2945-6
https://doi.org/10.1007/s11837-018-2945-6
Autor:
Luka Kelhar, Jean-Marie Dubois, Primož Koželj, Janez Zavašnik, Marjeta Maček-Kržmanc, Sašo Šturm, Spomenka Kobe, Jana Ferčič
Publikováno v:
Journal of Non-Crystalline Solids. 483:70-78
Iron and copper are immiscible elements, but can be combined in the presence of a third element such as aluminium or cerium. We varied the additions of immiscible Fe and Cu (ratio y) in the stoichiometric Al20.5Ce41.5(FeyCu1 − y)38 alloys in order
Externí odkaz:
https://explore.openaire.eu/search/publication?articleId=doi_________::48a4e16f43af4d2d28953c107cf4d796
https://doi.org/10.1016/j.jnoncrysol.2018.01.003
https://doi.org/10.1016/j.jnoncrysol.2018.01.003