TY  - JOUR
AU  - Kao, Y. J.
AU  - Huang, C. Y.
AU  - Su, C. Y.
AU  - Pithan, C.
AU  - Hennings, D. F.
AU  - Waser, R.
TI  - Hydroxyl defect effect on the resistance degradation behavior in Y-doped (Ba,Ca)(Ti,Zr)O$_{3}$ bulk ceramics
JO  - Journal of the European Ceramic Society
VL  - 36
IS  - 13
SN  - 0955-2219
CY  - Amsterdam [u.a.]
PB  - Elsevier Science
M1  - FZJ-2016-04472
SP  - 3147 - 3155
PY  - 2016
AB  - Degradation behavior of acceptor (Y)-doped (Ba,Ca)(Ti,Zr)O3 ceramics sintered in moist reducing atmosphere and subsequently re-oxidized in dry or wet atmospheres was contrasted. The degradation behavior critically depends on the water vapor incorporation, the time to degradation systematically decreased with the incorporation of hydroxyl defects View the MathML source(OH)O•. The electrical conductivity was investigated by means of impedance spectroscopy (IS) to determine properties, such as grain and grain boundary conductivity, grain boundary potential barrier height, and space charge layer thickness. Furthermore, transmission electron microscopy (TEM) and electron energy loss spectroscopy (EELS) were applied to consider microstructure, microchemistry, and oxygen stoichiometry changes.
LB  - PUB:(DE-HGF)16
UR  - <Go to ISI:>//WOS:000378449100008
DO  - DOI:10.1016/j.jeurceramsoc.2016.04.041
UR  - https://juser.fz-juelich.de/record/817864
ER  -