Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/15681
Título: | Optimising piezoelectric and magnetoelectric responses on CoFe2O4/P(VDF-TrFE) nanocomposites |
Autor(es): | Martins, P. Lasheras, A. Gutierrez, J. Barandiaran, J. M. Orue, I. Lanceros-Méndez, S. |
Palavras-chave: | Magnetoelectric Polymer composites Elecroactive polymers |
Data: | Dez-2011 |
Editora: | IOP Publishing |
Revista: | Journal of Physics D: Applied Physics |
Resumo(s): | Magnetoelectric nanocomposite films composed of magnetostrictive CoFe2O4 nanoparticles with sizes between 35 and 55 nm embedded in P(VDF-TrFE) have been successfully prepared by a solvent casting method. The ferroelectric, piezoelectric, magnetic and magnetoelectric properties of the nanocomposite and their variation with the wt% of the ferrite filler, thickness of the composite and direction of the applied magnetic field have been investigated. Ferroelectric and piezoelectric properties are improved when small amount of ferrite nanoparticles were added to the polymeric matrix. Magnetic properties vary linearity with ferrite content. The highest magnetoelectric response of 41.3 mV/cmOe was found in the composite with 72wt% when a 2.5 kOe DC field was transversely applied to the sample surface. This value is among the highest reported in two phase particulate polymer nanocomposites. Thickness of the composite has no influence in the magnetoelectric response, allowing tailoring sensor thickness for specific applications. The good value of the magnetoelectric coefficient and the flexibility of the films make these composites suitable for applications in magnetoelectric smart devices. |
Tipo: | Artigo |
URI: | https://hdl.handle.net/1822/15681 |
DOI: | 10.1088/0022-3727/44/49/495303 |
ISSN: | 0022-3727 1361-6463 |
Versão da editora: | http://iopscience.iop.org |
Arbitragem científica: | yes |
Acesso: | Acesso aberto |
Aparece nas coleções: | CDF - FCD - Artigos/Papers (with refereeing) |
Ficheiros deste registo:
Ficheiro | Descrição | Tamanho | Formato | |
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JPD_2011.pdf | 767,47 kB | Adobe PDF | Ver/Abrir |