In this work, we report on the synthesis and characterization of BNT-BT 0.08 /CoFe 2 O 4 biphasic composite with core-shell structure. This artificial core (BNT-BT 0.08 )/shell (CoFe 2 O 4 ) heterostructure was prepared by sol-gel method and the resulting composite was characterized in term of microstructure, dielectric, piezoelectric and magnetic properties. BNT-BT 0.08 /CoFe 2 O 4 sintered ceramic shows high permittivity (ε′ ≥ 30) and high dielectric losses (tan δ ≥ 10) in the low frequency range (ν ≤ 10 4 Hz), remnant polarization (Pr) of ∼7.7 μC/cm 2 and, remanent magnetization (Mr) of 24 emu/g at 5 K and of 14 emu/g, at room temperature. The present study reveals that the ferroelectric, piezoelectric and magnetic properties of this new architectured composite depend on the amount of each component and, can be tailored by adjusting their synthesis conditions. BNT-BT 0.08 /CoFe 2 O 4 core-shell material investigated in this work provides a novel way to exploit new applications for the multifunctional composite, such as piezoelectric sensor, magnetoelectronic sensors and data storage devices.

Composite BNT-BT 0.08 /CoFe 2 O 4 with core-shell nanostructure for piezoelectric and ferromagnetic applications / Cernea, M.; Vasile, B. S.; Ciuchi, I. V.; Surdu, V. A.; Bartha, C.; Iuga, A.; Galizia, P.; Galassi, C.. - In: MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY. - ISSN 0921-5107. - ELETTRONICO. - 240:(2019), pp. 7-15. [10.1016/j.mseb.2019.01.001]

Composite BNT-BT 0.08 /CoFe 2 O 4 with core-shell nanostructure for piezoelectric and ferromagnetic applications

Galizia P.;
2019

Abstract

In this work, we report on the synthesis and characterization of BNT-BT 0.08 /CoFe 2 O 4 biphasic composite with core-shell structure. This artificial core (BNT-BT 0.08 )/shell (CoFe 2 O 4 ) heterostructure was prepared by sol-gel method and the resulting composite was characterized in term of microstructure, dielectric, piezoelectric and magnetic properties. BNT-BT 0.08 /CoFe 2 O 4 sintered ceramic shows high permittivity (ε′ ≥ 30) and high dielectric losses (tan δ ≥ 10) in the low frequency range (ν ≤ 10 4 Hz), remnant polarization (Pr) of ∼7.7 μC/cm 2 and, remanent magnetization (Mr) of 24 emu/g at 5 K and of 14 emu/g, at room temperature. The present study reveals that the ferroelectric, piezoelectric and magnetic properties of this new architectured composite depend on the amount of each component and, can be tailored by adjusting their synthesis conditions. BNT-BT 0.08 /CoFe 2 O 4 core-shell material investigated in this work provides a novel way to exploit new applications for the multifunctional composite, such as piezoelectric sensor, magnetoelectronic sensors and data storage devices.
File in questo prodotto:
File Dimensione Formato  
Revised Manuscript.pdf

embargo fino al 08/01/2021

Tipologia: 2. Post-print / Author's Accepted Manuscript
Licenza: Creative commons
Dimensione 1.42 MB
Formato Adobe PDF
1.42 MB Adobe PDF Visualizza/Apri
1-s2.0-S0921510719300017-main.pdf

non disponibili

Tipologia: 2a Post-print versione editoriale / Version of Record
Licenza: Non Pubblico - Accesso privato/ristretto
Dimensione 3.49 MB
Formato Adobe PDF
3.49 MB Adobe PDF   Visualizza/Apri   Richiedi una copia
Pubblicazioni consigliate

Caricamento pubblicazioni consigliate

I documenti in IRIS sono protetti da copyright e tutti i diritti sono riservati, salvo diversa indicazione.

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11583/2952107