INFLUENCE OF LAIN xPBBIN OF TERNARY NANOCERAMIC COMPOSITE (l-x)0.5PMN-0.5PZT-xPBBiN SYSTEM BY MECHANICAL ACTIVATION TECHNIQUE FOR DIELECTRIC AND PIEZOELECTRIC PROPERTIES

摘要

with both perovskite and tungsten bronze structured composite have been synthesized through mechanical activation technique. The strong influence of lanthanum addition to the lead-barium-bismuth-niobate (xPBLBiN) ceramics in perovskite structured (l-x)PMN-PZTon structural and functional properties is confirmed. X-ray diffraction patterns studies showed that these complex composites consisted of perovskite Cubic with tungsten bronze Orthorhombic phases. La modification in PBBiN ofa ternary system (l-x)PMN-PZT-xPBBiN revealed intensified orthorhombicity. As La increased the dielectric and piezoelectric properties tremendously in-creasedin (l-x)PMN-PZT-xPBLBiN nanoceramic composite. The optimumdielectric and piezoelectric properties