Homogeneous fine grained La-2(Zr,Y)(2)O-7 /LaCoO3-delta-based composite mat
erials were obtained from simple mixture of the components and solid state
reaction between LaCoO3-delta and yttria-stabilized zirconia. Thermal expan
sion data can be fitted to simple mixture rules to predict the composite be
havior from the properties of the individual components. The dependence of
total and ionic conductivity on the volume fraction of the conductive phase
can be described by the General Effective Media equation. The resistance t
o thermal cycling was evaluated and found satisfactory (C) 2001 Elsevier Sc
ience BN. All rights reserved.