Microstructure effects on BaTiO3/BaTi0.8Zr0.2O3 composites properties
The dielectric, pyroelectric and ferroelectric properties of bilayered BaTiO3/BaTi0.8Zr0.2O3 ceramics are described and correlated with their microstructure. Different sintering times are employed to change the microstructure and promote interdiffusion between the layers. The effects of constrained...
| Autores: | , , , , |
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| Formato: | artículo |
| Fecha de publicación: | 2016 |
| País: | España |
| Recursos: | Universitat Politècnica de Catalunya (UPC) |
| Repositorio: | UPCommons. Portal del coneixement obert de la UPC |
| Idioma: | inglés |
| OAI Identifier: | oai:upcommons.upc.edu:2117/86888 |
| Acesso em linha: | https://hdl.handle.net/2117/86888 https://dx.doi.org/10.1016/j.ceramint.2016.02.071 |
| Access Level: | acceso abierto |
| Palavra-chave: | Sintering Dielectrics Barium titanate Layered ceramics Dielectric Ferroelectric and piezoelectric properties Sinterització Dielèctrics Àrees temàtiques de la UPC::Física |
| Resumo: | The dielectric, pyroelectric and ferroelectric properties of bilayered BaTiO3/BaTi0.8Zr0.2O3 ceramics are described and correlated with their microstructure. Different sintering times are employed to change the microstructure and promote interdiffusion between the layers. The effects of constrained sintering on both compositions are analyzed and their properties are compared to that of single phase BaTiO3 and BaTi0.8Zr0.2O3 ceramics. The results show that, at sintering times until 2 hours, the bilayer properties are predominantly affected by the presence of residual stresses. Only after 4 hours sintering, the properties are predominantly affected by interdiffusion between the layers. |
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