Browsing SINTEF Open by Author "Bondevik, Tarjei"
Now showing items 1-2 of 2
-
Application of machine learning-based selective sampling to determine BaZrO3 grain boundary structures
Bondevik, Tarjei; Kuwabara, Akihide; Løvvik, Ole Martin (Peer reviewed; Journal article, 2019)A selective sampling procedure is applied to reduce the number of density functional theory calculations needed to find energetically favorable grain boundary structures. The procedure is based on a machine learning algorithm ... -
Disagreements between space charge models and grain boundary impedance data in yttrium-substituted barium zirconate
Bondevik, Tarjei; Polfus, Jonathan Marc; Norby, Truls Eivind (Peer reviewed; Journal article, 2020)Although the space charge model is commonly used to explain the high grain boundary resistance in proton conducting yttrium-substituted BaZrO3, it fails in its simplest forms with factors 10–40 to fit experimental data ...