The effect of sintering temperature on the microstructure and properties of nonstoichiometric (Fe₂O₃ deficient) 40SCh2 grade garnet ferrite. Taking into account that the hardening in nonstoichiometric garnet ferrites onsets at 200 °C higher than in stoichiometric ones, we varied the sintering temperature from 1320 to 1520 °C. The results suggest that at a 1420 °C sintering temperature the stoichiometric composition produces a completely formed microstructure whereas microstructure formation only onsets at that temperature in the Fe₂O₃ deficient composition. The use of nonstoichiometric garnet ferrite compositions provides for the stable achievement of the required set of properties during 1520 °C air sintering.

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