Dielectric behavior of three-phase percolative Ni–BaTiO3/polyvinylidene fluoride composites
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- 16 December 2002
- journal article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 81 (25) , 4814-4816
- https://doi.org/10.1063/1.1529085
Abstract
A three-phase percolative composite with a ferroelectric phase (BaTiO3) and metallic inclusions (Ni) embedded into polyvinylidene fluoride matrix was prepared by using a simple blending and hot-molding technique. Effective medium approximations and percolation theory were employed in order to design and describe the dielectric behavior of such three-phase composites. Our experimental results showed that the static dielectric constant of such a three-phase composite can reach above 800 when the Ni concentration is close to its percolation threshold. Such composites have a potential to become capacitors and can be easily fabricated into various shapes due to its flexibility.Keywords
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