The dependence of the firing conditions on the crystal structure formation
of ZnGa2O4 has been investigated. The effects of temperature and atmosphere
were examined and gave evidence of the instability of the zinc gallate und
er a reducing atmosphere at temperatures above 600 degrees C. A new prepara
tion route has allowed to synthesize ZnGa2O4 at low-temperature, right from
300 degrees C, avoiding the decomposition of the matrix during the anneali
ng.