Blar i NTNU Open på forfatter "Søgaard, Martin"

Viser treff 1-2 av 2

    • Oxygen Non-Stoichiometry and Electrical Conductivity of La0.2Sr0.8Fe0.8B0.2O3 − δ, B = Fe, Ti, Ta 

      Lohne, Ørjan Fossmark; Phung, Tan Nhut; Grande, Tor; Bouwmeester, Henny J. M.; Hendriksen, Peter Vang; Søgaard, Martin; Wiik, Kjell (Journal article; Peer reviewed, 2014)
      The oxygen non-stoichiometry was determined by coulometric titration for the perovskite oxides La0.2Sr0.8FeO3 − δ and La0.2Sr0.8Fe0.8B0.2O3 − δ (B = Ti4 + and Ta5 +) in the temperature range 600 °C ⩽ T ⩽ 900 °C and the ...

    • The Significance of Gas-Phase Mass Transport in Assessment of k(chem) and D-chem 

      Lohne, Ørjan Fossmark; Søgaard, Martin; Wiik, Kjell (Journal article; Peer reviewed, 2013)
      In this work, the validity of electrical conductivity relaxation (ECR) as a method for the assessment of chemical surface exchange, kchem, and bulk diffusion, Dchem, coefficients is investigated with respect to mass transport ...