Synthesis of Nd0.7Sr0.3MnO3 ceramics by high-energy ball milling

Strontium doped perovskite-type manganite Nd0.7Sr0.3MnO3 is synthesized by high-energy ball milling. Nd0.7Sr0.3MnO3 single phase with perovskite structure is formed completely after milling 4 h and the perovskite phase decreases gradually and changes into amorphous state with increasing ball milling time up to 12 h. The interesting point in this work is that the Nd0.7Sr0.3MnO3 perovskite can be formed again from the amorphous with subsequent 6 h ball milling. In addition, the re-obtained perovskite seems to be more stable than Nd0.7Sr0.3MnO3 compound prepared using solid-state reaction method.