Structural and magnetodielectric properties of poly(vinylidene-fluoride)-[0.8(Bi0.5Na0.5)TiO3-0.2CoFe2O4] polymer composite films |
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| Affiliation: | 1. Smart Materials Research Laboratory, Department of Physics, Indian Institute of Technology Roorkee, Roorkee 247667, India;2. Department of Metallurgical and Materials Engineering, Indian Institute of Technology Roorkee, Roorkee 247667, India;1. College of Physics and Electronic Information Engineering, Qinghai University for Nationalities, Xining 810007, PR China;2. College of Physics and Information Technology, Shaanxi Normal University, Xi''an 710062, PR China;3. Materials and Structures Laboratory, Tokyo Institute of Technology, 4259 Nagatsuta, Midori, Yokohama, Kanagawa 226-8503, Japan;1. Department of Physics, Central University of Kerala, Kasaragod 671314, India;2. Department of Physics, Central University of Tamil Nadu, Thiruvarur 610101, India;3. School of Pure and Applied Physics, Mahatma Gandhi University, Kottayam 686560, India;1. BCMATERIALS and Universidad del País Vasco (UPV/EHU), P.O Box 644, E-48080 Bilbao, Spain;2. Centro/Departamento de Física, Universidade do Minho, 4710-057 Braga, Portugal |
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| Abstract: | Composite thick films of xPoly(vinylidene-fluoride)-(1−x)[0.8(Bi0.5Na0.5)TiO3-0.2CoFe2O4] with x = 0.1, 0.2, 0.3 and 0.4 were synthesized by hot press method. X-ray diffraction pattern of the composite films indicate the existence of distinct peaks of poly(vinylidene-fluoride), (Bi0.5Na0.5)TiO3 and CoFe2O4 phases. The value of dielectric loss and saturation magnetization of polymer composite films decrease with increase in poly(vinylidene-fluoride) content. The magnetodielectric effect of the polymer composite films was found to improve with increasing poly(vinylidene-fluoride) content. The linear fitting of Δε ∼ γM2 gives the value of magnetoelectric interaction coefficient (γ) of polymer composite films. |
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| Keywords: | A. Polymer-matrix composites (PMCs) B. Microstructures B. Magnetic properties |
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