Solution-combustion synthesis and eletroconductivity of CaZrO3

Solution-combustion synthesis and electroconductivity of calcium zirconate with glycine used as a fuel were explored. The reaction temperature was measured as a function of fuel to oxidant ratio (φ). Displacement of maximum combustion temperature Tm toward φ > 1.0 was observed. Maximum combustion temperature (856°C) was reached at φ = 1.3. An increase in φ above 1.0 leads to formation of carbon monoxide and nitrogen oxides in gaseous reaction products when φ < 1.0. Total conductivity of the CaZrO3 ceramics was measured in the temperature range 40–800°C and a maximum value of log σ = −5.2 S cm−1 was observed at 800°C. © 2015, Allerton Press, Inc.