Precursors of La1-xSrxFeO3(x=0.0,0.1,0.4 and 0.6)nanocrystalline materialswere prepared by the mixed salts dissolved in an aqueous solution ofpolyvinyl alcohol(PVA).XRD,DTA and TEM were used to characterize the samples.Well-nanocrystalline perovskite-type La1xSrxFeO3 could be synthesized at thetemperatures as low as 400~550℃ for 2h by the calcination of these amorphousprecursors,and the calcination of wet LaFeO3 gel was investigated at 300℃ forlh and 700℃ for 0.5h.
展开▼