Abstract
The perovskite-type La0.9Bi0.1AlO3 (LBAO) relaxor nanocrystalline have been prepared by a novel two-step molten method consisting of a mechanically milling induced metathesis reaction followed by calcining at temperature above nitrates melting point. The results show that the pure LBAO phase has been obtained at about 550 °C, which is lowered by about 500 °C comparing to a conventional solid-state reaction. The present particles were characterized by rhombohedral perovskite structure in space group R-3C, consisting of plate-like nanostructures with an average size of ∼50 nm. Moreover, LBAO ceramics densified from nanocrystalline show the improved dielectric properties compared to parent LaAlO3, which is promising for development of new lead-free ceramic devices.
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