Blar i NTNU Open på forfatter "Sazinas, Rokas"

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    • 134Ba diffusion in polycrystalline BaMO3 (M = Ti, Zr, Ce) 

      Sazinas, Rokas; Sakaguchi, Isao; Einarsrud, Mari-Ann; Grande, Tor (Journal article; Peer reviewed, 2017)
      Cation diffusion in functional oxide materials is of fundamental interest, particularly in relation to interdiffusion of cations in thin film heterostructures and chemical stability of materials in high temperature ...

    • 96Zr Tracer Diffusion in AZro3 (A = Ca, Sr, Ba) 

      Sazinas, Rokas; Sakaguchi, Isao; Einarsrud, Mari-Ann; Grande, Tor (Journal article; Peer reviewed, 2018)
      Cation tracer diffusion in polycrystalline AZrO3 (A = Ca, Sr, Ba) perovskites was studied at 1300–1500 °C in air using the stable isotope 96Zr. Thin films of 96ZrO2 were deposited on polished ceramic pellets by drop casting ...

    • Effect of CO2 Exposure on the Chemical Stability and Mechanical Properties of BaZrO3‐Ceramics 

      Sazinas, Rokas; Bernuy-Lopez, Carlos; Einarsrud, Mari-Ann; Grande, Tor (Journal article, 2016)

    • Surface reactivity and cation non-stoichiometry in BaZr1-xYxO3-δ (x=0-0.2) exposed to CO2 at elevated temperature 

      Sazinas, Rokas; Sunding, Martin Fleissner; Thøgersen, Annett; Sakaguchi, Isao; Norby, Truls Eivind; Grande, Tor; Polfus, Jonathan M. (Journal article; Peer reviewed, 2019)
      The reactivity of BaZr1−xYxO3−δ (x = 0–0.2) ceramics under 1 atm CO2 at 650 °C for up to 1000 h was investigated in order to elucidate possible degradation processes occurring when the material is applied as a proton-conducting ...

    • Toughening of Y-doped BaZrO3 proton conducting electrolytes by hydration 

      Sazinas, Rokas; Einarsrud, Mari-Ann; Grande, Tor (Journal article; Peer reviewed, 2017)
      In BaZr1−xYxO3−x/2 (BZY), the state-of-the-art oxide proton conductors, the proton conductivity is facilitated by hydration of oxygen vacancies. Hydration induces lattice expansion, which may induce stress and thereby ...

    • Tracer diffusion of 96Zr and 134Ba in polycrystalline BaZrO3 

      Sazinas, Rokas; Sakaguchi, Isao; Hasle, Ida Margrete; Polfus, Jonathan M.; Haugsrud, Reidar; Einarsrud, Mari-Ann; Grande, Tor (Journal article; Peer reviewed, 2017)
      Cation tracer diffusion in polycrystalline cubic BaZrO3 perovskites was studied using the stable isotopes 134Ba and 96Zr in air at 1015–1200 and 1300–1500 °C, respectively. Thin films of 134BaO and 96ZrO2 were deposited ...