Abstract:
The present work concentrates on a comparative analysis of methods for the synthesis of
materials based on barium cerate at relatively low sintering temperatures. According to the
data of thermogravimetric analysis (TGA) and differential scanning calorimetry (DSC),
the optimal temperatures of powder synthesis are determined. Using the qualitative X-ray
phase analysis, it is found that at 1423 K BaCe${}_{0.9}$M${}_{0.1}$O${}_{3-\delta}$ compounds obtained by the
citrate-nitrate method, are isomorphic to the perovskite-type structure (an orthorhombic
distortion). For the studied ceramic samples obtained by different methods, the relative
density and open porosity were determined at 1423 and 1623 K.
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