Acta Polytechnica CTU Proceedings. 2017, vol. 9

 

Zobrazují se záznamy 1-7 z 7

    • COMPARISON OF PARAMETERS OF SURFACE INTEGRITY OF MACHINED DUPLEX AND AUSTENITE STAINLESS STEELS IN RELATION TO TOOL GEOMETRY 

      Autor: Čapek, Jiří; Pitrmuc, Zdeněk; Kolařík, Kamil; Beránek, Libor; Ganev, Nikolaj
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
      The goal of this contribution was to describe parameters of surface integrity of two machined materials; austenite and duplex stainless steel. Residual stresses and presence of straininduced martensite were studied as a ...

    • REMOVAL OF DIQUATERNARY AMMONIUM CATIONS FROM AS-SYNTHESIZED SSZ-16 ZEOLITE 

      Autor: Supinkova, Tatana; Jirka, Ivan; Drahokoupil, Jan; Langmaier, Jan; Fila, Vlastimil; Brabec, Libor; Kocirik, Milan
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
      Zeolites are stable microporous aluminosilicates with numerous applications in chemical technology such as separation of species and catalytic transformations. Our study is focused on a weakly explored zeolite SSZ-16 with ...

    • PREPARING OF THE CHAMELEON COATING BY THE ION JET DEPOSITION METHOD 

      Autor: Skocdopole, Jakub; Aversa, Lucrezia; Golan, Martin; Schenk, Antonin; Baldi, Giacomo; Kratochvilova, Irena; Kalvoda, Ladislav; Nozar, Petr
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
      Preparation of chameleon coatings using an Ionized Jet Deposition (IJD) technique is reported in the present paper. IJD is a new flexible method for thin film deposition developed by Noivion, Srl. The chameleon coatings ...

    • INFLUENCE OF MACHINING TECHNOLOGIES ON VALUES OF RESIDUAL STRESSES OF OXIDE CUTTING CERAMICS 

      Autor: Němeček, Jakub; Kolařík, Kamil; Čapek, Jiří; Ganev, Nikolaj
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
      Currently, the intensive development of engineering ceramic and effort to replace sintered carbides as cutting materials are in progress. With the development of the sintering technology it is now possible to produce compact ...

    • REAL STRUCTURE AND RESIDUAL STRESSES IN ADVANCED WELDS DETERMINED BY X-RAY AND NEUTRON DIFFRACTION 

      Autor: Trojan, Karel; Hervoches, Charles; Kolařík, Kamil; Ganev, Nikolaj; Mikula, Pavol; Čapek, Jiří
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
      The paper outlines the capability of X-ray diffraction (XRD) for evaluation of real structure changes and residual stresses (RS) on cross-section of advanced thick welds due to the welding of ferromagnetic plates. The ...

    • PHASE ANALYSIS OF NITI WIRE BASED ON SYNCHROTRON 2D X-RAY DIFFRACTION PATTERN IN MATLAB 

      Autor: Dudr, Martin; Šimek, Daniel; Drahokoupil, Jan
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
      This paper deals with simplified phase analysis of 2D diffraction patterns obtained using microfocused X-ray at various places of superelastic NiTi wire under combined load. For this purpose, MATLAB routines and functions ...

    • SURFACE CHARACTERIZATION OF TITANIUM ALLOYS FOR NITROGEN ION IMPLANTATION 

      Autor: Vertat, Petr; Drahokoupil, Jan; Vlcak, Petr
      (České vysoké učení technické v PrazeCzech Technical University in Prague, 2017)
      Ion implantation is one of the modern methods of the surface modification of various materials. Industrially used Ti–6Al–4V titanium alloy and commercially pure Ti grade 2 were characterized using the X–ray diffraction ...