Journal of Analytical and Applied Pyrolysis 2018-03-27

Thermal decomposition of yttrium propionate: Film and powder

Silvia Rasi, Susagna Ricart, Xavier Obradors, Teresa Puig, Pere Roura, Jordi Farjas

Index: 10.1016/j.jaap.2018.03.021

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Abstract

The processes involved in the thermal decomposition of yttrium propionate in oxidizing and inert atmosphere were analyzed with thermoanalytical techniques (thermogravimetry and evolved gas analysis) and with the help of structural characterization (X-ray, diffraction, infrared spectroscopy and elemental analysis) of intermediate and final products. Samples in the form of films and powders were analyzed. The decomposition behavior studied as a function of the particles’ size and the film thickness was investigated. We conclude that, as a consequence of the gas and heat transport, films decompose differently than powders. Finally, two decomposition mechanisms are proposed that are in agreement with the observed volatiles and intermediate phases.

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