Investigation of low field dielectric properties of anisotropic porous Pb(Zr,Ti)O3 ceramics: Experiment and modeling (Articolo in rivista)

Type

• Articolo in rivista (Classe)
• Prodotto della ricerca (Classe)

Label

• Investigation of low field dielectric properties of anisotropic porous Pb(Zr,Ti)O3 ceramics: Experiment and modeling (Articolo in rivista) (literal)

Anno

• 2013-01-01T00:00:00+01:00 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#doi

• 10.1063/1.4837616 (literal)

Alternative label

• C. S. OLARIU, L. PADURARIU, R. STANCULESCU, C. BALDISSERI, C. GALASSI, and L. MITOSERIU, (2013)
  Investigation of low field dielectric properties of anisotropic porous Pb(Zr,Ti)O3 ceramics: Experiment and modeling
  in Journal of applied physics
  (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#autori

• C. S. OLARIU, L. PADURARIU, R. STANCULESCU, C. BALDISSERI, C. GALASSI, and L. MITOSERIU, (literal)

Pagina inizio

• 114, 214101-1 (literal)

Pagina fine

• 114, 214101-8 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#url

• http://dx.doi.org/10.1063/1.4837616 (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#numeroVolume

• 114 (literal)

Rivista

• Journal of applied physics (Rivista)

Note

• ISI Web of Science (WOS) (literal)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#affiliazioni

• 1National Institute of Research & Development for Technical Physics, blvd. Mangeron, No. 47, 700050 Iasi, Romania 2Department of Physics, Alexandru Ioan Cuza University, blvd. Carol I, No. 11, Iasi 700506, Romania 3Institute of Ceramics Science and Technology ISTEC-CNR, Via Granarolo No. 64, I-48018 Faenza, Italy (literal)

Titolo

• Investigation of low field dielectric properties of anisotropic porous Pb(Zr,Ti)O3 ceramics: Experiment and modeling (literal)

Abstract

• Anisotropic porous Pb(Zr,Ti)O3 ceramics with various porosity degrees have been studied in order to determine the role of the pore shape and orientation on the low-field dielectric properties. Ceramic samples with formula Pb(Zr0.52Ti0.48)0.976Nb0.024O3 with different porosity degrees (dense, 10%, 20%, 40% vol.) have been prepared by solid state reaction. Taking into consideration the shape and orientation of the pore inclusions, the dielectric properties of porous ceramics have been described by using adapted mixing rules models. Rigorous bounds, derived on the basis on Variational Principle, were used to frame dielectric properties of porous composites. The finite element method (FEM) was additionally used to simulate the dielectric response of the porous composites under various applied fields. Among the few effective medium approximation models adapted for anisotropic oriented inclusions, the best results were obtained in case of needle-like shape inclusions (which do not correspond to the real shape of microstructure inclusions). The general case of Wiener bounds limited well the dielectric properties of anisotropic porous composites in case of parallel orientation. Among the theoretical approaches, FEM technique allowed to simulate the distribution of potential and electric field inside composites and provided a very good agreement between the computed permittivity values and experimental ones. VC 2013 AIP Publishing LLC. (literal)

Prodotto di

• Institute of science and technology for ceramics (ISTEC) (Istituto)
• Processi e materiali per applicazioni elettromeccaniche (SP.P01.037.001) (Modulo)

Autore CNR

• CARLO BALDISSERRI (Unità di personale interno)
• CARMEN GALASSI (Unità di personale interno)

Incoming links:

Prodotto

• Institute of science and technology for ceramics (ISTEC) (Istituto)
• Processi e materiali per applicazioni elettromeccaniche (SP.P01.037.001) (Modulo)

Autore CNR di

• CARMEN GALASSI (Unità di personale interno)
• CARLO BALDISSERRI (Unità di personale interno)

Http://www.cnr.it/ontology/cnr/pubblicazioni.owl#rivistaDi

• Journal of applied physics (Rivista)