Utilize este identificador para referenciar este registo:
https://hdl.handle.net/1822/69482| Título: | Spray-printed magnetoelectric multifunctional composites |
| Autor(es): | Martins, Pedro Libânio Abreu Nunes, J. S. Oliveira, J. Peřinka, N., Lanceros-Méndez, S. |
| Palavras-chave: | Nano-engineered materials Smart materials Magnetic composites Additive manufacturing Polymers |
| Data: | Abr-2020 |
| Editora: | Elsevier 1 |
| Revista: | Composites Part B: Engineering |
| Citação: | Martins, P., Nunes, J. S., Oliveira, J., Peřinka, N., & Lanceros-Mendez, S. (2020). Spray-printed magnetoelectric multifunctional composites. Composites Part B: Engineering, 187, 107829 |
| Resumo(s): | The performance of spray-printed magnetoelectric (ME) composites based on poly (vinylidene fluoride-co-trifluoroethylene)/cobalt ferrite, P(VDF-TrFE)/CoFe2O4, is reported and discussed. Spray-printing has been chosen as a production technique since it is a transformative approach to industrial production. With the addition of 20 wt% of ferrite content, the resulting composite exhibits a fibrillar-porous structure, an ≈1.8 GPa Young's Modulus, a saturation magnetization of 11.2 emu. g−1, a 6.0 emu. g−1 magnetic remanence and a magnetic coercivity of 2050 Oe. The high dielectric (34 dielectric constant at 10 kHz) and piezoelectric (−27 pC.N−1) responses explain the high ME coupling of 21.2 mV cm−1 Oe−1 at an optimum magnetic field of 2450 Oe. The high ME response and the simple/scalable additive manufacturing method demonstrates the suitability of these materials for cost-effective and large-scale sensor/actuator applications, namely in aerospace, automotive and recreational products |
| Tipo: | Artigo |
| URI: | https://hdl.handle.net/1822/69482 |
| DOI: | 10.1016/j.compositesb.2020.107829 |
| ISSN: | 1359-8368 |
| e-ISSN: | 1879-1069 |
| Versão da editora: | https://www.sciencedirect.com/science/article/pii/S1359836819331749 |
| Arbitragem científica: | yes |
| Acesso: | Acesso aberto |
| Aparece nas coleções: |
