Browsing B6 – LU institūti un aģentūras / Institutes and agencies of the UL by Subject "Ceramics"

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    • Evolution of free volumes in polycrystalline baga2o4 ceramics doped with eu3+ ions 

      Klym, Halyna; Karbovnyk, Ivan; Luchechko, Andriy; Kostiv, Yuriy; Pankratova, Viktorija; Popov, Anatoli I. (Multidisciplinary Digital Publishing Institute (MDPI), 2021)
      BaGa2O4 ceramics doped with Eu3+ ions (1, 3 and 4 mol.%) were obtained by solid-phase sintering. The phase composition and microstructural features of ceramics were investigated using X-ray diffraction and scanning electron ...

    • Impact of thermal treatment on the surface of na0.5bi0.5tio3-based ceramics 

      Bikse, Liga; Dunce, Marija; Birks, Eriks; Kundzins, Karlis; Freimanis, Otto; Livins, Maris; Gabrusenoks, Jevgenijs; Sternberg, Andris (Multidisciplinary Digital Publishing Institute (MDPI), 2021)
      Thermal etching is a widely accepted surface treatment method for studying microstructure in Na0.5Bi0.5TiO3-based compositions. Surprisingly, besides the flat pattern of grains (suitable for evaluating ceramics’ microstructure), ...

    • Luminescence of AlN:Mn2+ materials: Properties and mechanisms 

      Ruska, Rihards; Berzina, Baiba; Cipa, Janis; Trinkler, Laima; Sarakovskis, Anatolijs; Grabis, J.; Steins, I. (Elsevier, 2023)
      Luminescence processes resulting in 600 nm emission of Mn2+ ions in AlN:Mn ceramics were studied based on investigations of photoluminescence and its excitation spectra, luminescence kinetics and long-lasting luminescence ...

    • Polarization and acoustic properties of barium-modified lead-free potassium–sodium niobate ceramics 

      Bormanis, Karlis; Burkhanov, Anver I.; Sternberg, Andris; Zhirkov, Aleksandr V.; Antonova, Maija; Kalvane, Anna; Ignatans, Reinis (Estonian Academy Publishers, 2017)
      Results of polarization and polarization switching in samples prepared by solid phase synthesis of the (1-х)(K0.5Na0.5)(Nb0.93Sb0.07)O3–xBaTiO3 + 0.5mol%MnO2 system at x = 0.01, 0.02, and 0.04 (KNNS7–xBT) studied over a ...