Solution combustion synthesis of CaZrO3 ceramic perovskite using different fuels: In-situ FT-IR studies and monitoring of the flame reaction by thermocouple

Abstract

In this study, nanoparticles of perovskiteCaZrO3 were prepared by a solution combustion technique using urea, glycine, β-alanineand citric acid as fuels. The aim of this work is to estimate the effect of these different fuels on the structure and microstructure of CaZrO3 powders. The flame reaction was estimated by means of a thermocouple which allowed us to show that the combustion reaction velocity. The thermal decomposition of nitrate precursors was studied with the help of TG-DTA coupled with the infrared spectroscopy. The FT-IR spectroscopy enabled to check the identity of the evolved gases over the mass loss process. CaZrO3 powders were calcined at 900 °C for 1 h. The powders were thoroughly characterized by scanning electron microscopy, X-ray diffraction andThermodilatometry. Also, the combustion process using glycine as fuel is beneficial to produce CaZrO3 powders at low temperature, which are known to have a good reactivity with fine particles.

Keywords

• CaZrO3 perovskite
• Solution combustion synthesis
• O/F ratio
• Thermal decomposition
• In situ TF-IR