Electrical and microstructural characterization on nitrogen-stabilized zirconia

Characterization of ZrO co-doped with ScO and CeO electrolyte for the application of intermediate temperature SOFCs

“…It is generally known that AC impedance analysis is very helpful to estimate the microstructural effect on total conductivity by differentiating each contribution of intragranular and grain boundary resistance on total conductivity [42,43]. Therefore, in order to investigate the dissimilar forms of behavior involved in electrical conductivity with respect to density or grain size in Fig.…”

Nitrogen-doped zirconia: A comparison with cation stabilized zirconia

“…2 represent the data of a 2Y-TZP specimen ðY 0:04 Zr 0:96 O 1:98 V 0:02 Þ prepared from commercial powder (TZ-2Y, Tosoh, Japan) (in solid squares) and nitrided 2Y-TZP (in open squares) [17]. The N content of the nitrided 2Y-TZP specimen is a rough estimate in reference to similarly prepared specimens [19].…”

“…In the present contribution the N effects on the conductivity of zirconia will be revisited based on recent results of the authors [17][18][19]. In view of lack of detailed structural and modelling work, we attempt to understand the behavior phenomenologically by comparison with the effects of conventional cation stabilizers.…”

Structural and electrical properties of ZnO-doped 8 mol% yttria-stabilized zirconia

“…It is assumed that the materials consist of highly conducting grains which are separated by relatively thin grain boundaries [13]. In order to investigate the effect of ZnO on the grain boundary of 8YSZ, X gb , the volume percentage of gain boundaries in ceramics, was calculated from the capacitance values of equivalent circuits based on the brick layer model [14,15]:…”