A study based on the oxidation vaporization of LaCrO3.

This is a study based on the assumption that the volatilization of Cr gives rise to the poor sinterability of LaCrO₃. We have studied the effect of buried materials (none, Al₂O₃, La₂O₃, Cr₂O₃, LaCrO₃) on the sinterability of LaCrO₃ by conventional sintering in air. It was observed that the sinterability of LaCrO₃ in air is largely enhanced by burying with La₂O₃ (with a linear shrinkage of 12.5% and a relative density of 86.90%). The energy dispersive spectroscopy (EDS) infers that there is a volatilization of Cr in sintering of LaCrO₃ in air and the volatilization of Cr does affect the sinterability of LaCrO₃. [ABSTRACT FROM AUTHOR]