Novel Method of Synthesis of Multiferroic Nickel Cobalt Ferrite-Barium Strontium Titanate Composite System

作者：Pahuja Poonam^*; Sharma Richa; Singh Vinamrita; Tandon Ram Pal

来源：International Journal of Applied Ceramic Technology, 2015, 12: E156-E163.

DOI：10.1111/ijac.12346

Multiferroic composites have been prepared by submerging of barium strontium titanate (Ba0.95Sr0.05TiO3) (BST) pellets (sintered at different temperatures) in nickel cobalt ferrite (Ni0.8Co0.2Fe2O4) (NCF) Sol followed by sintering. This method resulted into uniform distribution of small amount of NCF nanoparticles in BST matrix. The presence of NCF within BST pellets has been confirmed by magnetization versus magnetic field loops and energy dispersive X-ray spectroscopy (EDS) measurements. Smaller content of NCF in composite samples prepared from submerging method significantly affected dielectric, piezoelectric, and ferroelectric properties. Magnetodielectric effect in composite samples confirmed the presence of magnetoelectric coupling.

• 出版日期2015-2