Univ.-Prof. Dr. Jozef Keckes

Function: Vice Chair Material Physics / Group Leader
Room: 303
Phone: +43 (0) 3842-804-303
E-Mail: jozef.keckes(at)unileoben.ac.at

Research

Micro- and Nanostructure Characterization and Micro- and Nanomechanics

Methods

In-situ X-ray scattering on micro- and nano-scaled materials, structure and mechanical properties of thin films, structure-property relationship in biological materials, application of synchrotron radiation, XRD, SAXS, WAXS, GISAXS

Teaching

Materialkundliche Arbeitsverfahren/Metallkundliche Arbeitsverfahren, Seminar aus Werkstoffphysik I and II, Übungen zu Materialkundliche Arbeitsverfahren

Projects

 

Publications

  • Influence of increasing chromium content on additively manufactured tool steels: Microstructural and mechanical evolution before and after heat treatmentOfner N., S. Bodner, P. Kunnas, A. Asci, K. Kutlesa, A. Stark, P. Höbenreich, C. Aumayr, L. Wu, C. Turk, J. Keckes, M. MeindlhumerJournal of Materials Research and Technology34, 2715-2727 (2024)
    DOIRISENWBIB
  • Nanoscale stress and microstructure gradients across a buckled Mo-Cu bilayer: Cu self-annealing triggered by interface delaminationLassnig A., J. Todt, M. Tkadletz, S. Zak, C. Mitterer, A.A. Medjahed, M. Burghammer, J. Keckes, M.J. Cordill, M. MeindlhumerACTA MATER283, ARTN 120465 (2024)
    DOIRISENWBIB
  • Understanding the origin of lithium dendrite branching in Li<sub>6.5</sub>La<sub>3</sub>Zr<sub>1.5</sub>Ta<sub>0.5</sub>O<sub>12</sub> solid-state electrolyte via microscopy measurementsYildirim C., F. Flatscher, S. Ganschow, A. Lassnig, C. Gammer, J. Todt, J. Keckes, D. RettenwanderNATURE COMMUNICATIONS15, ARTN 8207 (2024)
    DOIRISENWBIB
  • Amorphous shear band formation in crystalline Si-anodes governs lithiation and capacity fading in Li-ion batteriesHaeusler M., O. Stamati, C. Gammer, F. Moitzi, R.J. Sinojiya, J. Villanova, B. Sartory, D. Scheiber, J. Keckes, B. Fuchsbichler, S. Koller, R. BrunnerCOMMUNICATIONS MATERIALS5, ARTN 163 (2024)
    DOIRISENWBIB
  • Hydrogen penetration into the NiTi superelastic alloy investigated in-situ by synchrotron diffraction experimentsWeiser A., J. Todt, J. Holcova, T. Zalezak, A.M. Paulik, D. Holec, M. Jary, O. Zobac, J. Mrazek, J. Frenzel, J. Keckes, A. DlouhyActa Materialia277, 120217 (2024)
    DOIRISENWBIB
  • Peculiarity of hydrogen absorption in duplex steels: Phase-selective lattice swelling and stress evolutionPogrielz T., M. Eichinger, A. Weiser, J. Todt, A. Hohenwarter, A. Ascii, B. Sarac, D. Brandl, G. Ressel, M. Jary, A. Dlouhy, G. Mori, J. KeckesSCRIPTA MATER248, ARTN 116142 (2024)
    DOIRISENWBIB
  • Toughness enhancement in TiN/Zr 0.37 Al 0.63 N 1.09 multilayer filmsLorentzon M., M. Meindlhumer, J. Palisaitis, G. Greczynski, J. Keckes, J. Rosen, L. Hultman, J. Birch, N. GhafoorACTA MATER273, ARTN 119979 (2024)
    DOIRISENWBIB
  • Backside metallization affects residual stress and bending strength of the recast layer in laser-diced SiZiegelwanger T., M. Reisinger, K. Matoy, A.A. Medjahed, J. Zalesak, M. Gruber, M. Meindlhumer, J. KeckesMaterials Science in Semiconductor Processing, 108579 (2024)
    DOIRISENWBIB
  • Multimethod cross-sectional characterization approaching the limits of diamond monophase multilayersMeindlhumer M., J. Grau, H. Sternschulte, Y. Halahovets, P. Siffalovic, M. Burghammer, D. Steinmüller-Nethl, J. KeckesMaterials Characterization, 113973 (2024)
    DOIRISENWBIB
  • Hardness and fracture toughness enhancement in transition metal diboride multilayer films with structural variationsVidis M., T. Fiantok, M. Gocník, P. Svec, S. Nagy, M. Truchlý, V. Izai, T. Roch, L. Satrapinskyy, V. Sroba, M. Meindlhumer, B. Gran, B. Kú, J. Keckes, M. MikulaMaterialia, 102070 (2024)
    DOIRISENWBIB