Large magnetoelectric response in modified BNT based ternary piezoelectric [72.5(Bi1/2Na1/2TiO3)-22.5(Bi1/2K1/2TiO3)-5(BiMg1/2Ti1/2O3)]-magnetostrictive (NiFe2O4) particulate (0-3) composites

Lead free ternary solid solution 72.5(Bi1/2Na1/2TiO3)-22.5(Bi1/2K1/2TiO3)-5(BiMg1/2Ti1/2O3) with effective piezoelectric coefficient (d(33)) of 180 pC/N has been prepared. Further, particulate composites consisting of (1-x)[72.5(BNT)-22.5(BKT)-5(BMgT)]-xNiFe(2)O(4) (NFO) (x = 0, 0.1, 0.2, 0.3) were synthesized, and its structural, magnetoelectric (ME), magnetostrictive, magnetic, and ferroelectric properties were studied. Large ME voltage coefficient, (alpha(E)) similar to 73 mV/cmOe accompanied by high d(33) similar to 125 pC/N, and magnetostrictive strains, (lambda(11)) similar to -18 x 10(-6), were obtained for x = 0.2 composite. The present study demonstrates an environmental-friendly ME particulate composite for future applications. (C) 2015 AIP Publishing LLC.