TY  - JOUR
AU  - Motalov, V.
AU  - Bencze, L.
AU  - Yin, X.
AU  - Spatschek, R.
AU  - Singheiser, L.
TI  - Measurment of Thermodynamic Activity of Zirconia in Yttria-Stabilized Zirconia Electrolyte for Solid Oxide Fuel Cell Application
JO  - Calphad
VL  - 64
SN  - 0364-5916
CY  - Amsterdam [u.a.]
PB  - Elsevier Science
M1  - FZJ-2019-05580
SP  - 342 - 346
PY  - 2019
AB  - The Knudsen effusion mass spectrometry technique was applied to determine the activity of ZrO2 in 8 mol% yttria-stabilized zirconia (8YSZ) in the temperature range from 2200 K to 2500 K. The minor ZrO2+ ion current was used in calculations instead of the prevailing ZrO+ signal. The phase stability of the samples and their negligible interaction with the cell material was proved by XRD-analysis. The activity of ZrO2 was obtained to be 0.84 ± 0.04 independent of temperature. This fact allows estimating the same value of activity in the operating temperature range of solid oxide fuel cells (SOFCs).
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000460842600037
DO  - DOI:10.1016/j.calphad.2019.01.010
UR  - https://juser.fz-juelich.de/record/866469
ER  -