MgFe2O4/(Ba0·85Ca0.15) (Zr0·1Ti0.9)O3 lead free ceramic composite: A study on multiferroic and magnetoelectric coupling properties at room temperature

2021 ◽  
Vol 853 ◽  
pp. 156960
Author(s):  
S. Satapathy ◽  
Golla Prudhvi ◽  
Azam Ali Khan ◽  
Pratik Deshmukh ◽  
Anju Ahlawat ◽  
...  
Keyword(s):  
Room Temperature ◽  
Ceramic Composite ◽  
Magnetoelectric Coupling ◽  
Lead Free ◽  
Lead Free Ceramic

Technology and Properties of Ferroelectromagnetic Lead–Free BFN–Ferrite Composites

2013 ◽  
Vol 58 (4) ◽  
pp. 1405-1409 ◽  
Author(s):  
D. Bochenek ◽  
P. Niemiec
Keyword(s):  
Magnetic Properties ◽  
Ceramic Composite ◽  
Composite Powder ◽  
Barium Carbonate ◽  
Lead Free ◽  
Relaxation Phenomena ◽  
Lead Free Ceramic ◽  
Calcination Method ◽  
Ferrite Composites

Abstract A lead free ceramic composite 0.9BaFe0:5Nb0:5O3-0.1Ni0:5Zn0:5Fe2O4 (BFN-NZF) with ferroelectromagnetic properties have been obtained in presented work. Ceramic composite powder obtained from the simple oxides Fe2O3, Nb2O5, ZnO, NiO and barium carbonate BaCO3. The composition of the composite was chosen so that the ratio of the BFN and NZF components was 90:10. The synthesis of components of BFN-NZF composite was performed using the calcination method. Final densification of synthesized powder has been done using free sintering. The XRD, the microstructure, EDS and dielectric investigations were performed. For comparison of the BFN ceramic and the BFN-NZF composites, temperature and frequency impedance research was conducted. Relaxation phenomena were observed at temperatures above 235°C in the BFN ceramic and above 150°C in the BFN-NZF composite. Obtained results show the coexistence of ferroelectric and magnetic properties. Such properties of obtained composites give the possibility to use them in magnetoelectric transducers.

Magnetic and electric properties of the lead free ceramic composite based on the BFN and ferrite powders

2014 ◽  
Vol 87 ◽  
pp. 36-44 ◽  
Author(s):  
Dariusz Bochenek ◽  
Przemysław Niemiec ◽  
Artur Chrobak ◽  
Grzegorz Ziółkowski ◽  
Artur Błachowski
Keyword(s):  
Ceramic Composite ◽  
Electric Properties ◽  
Lead Free ◽  
Magnetic And Electric Properties ◽  
Lead Free Ceramic

New lead-free relaxors based on the K0.5Na0.5NbO3–SrTiO3 solid solution

2004 ◽  
Vol 19 (6) ◽  
pp. 1849-1854 ◽  
Author(s):  
Marija Kosec ◽  
Vid Bobnar ◽  
Marko Hrovat ◽  
Janez Bernard ◽  
Barbara Malic ◽  
...  
Keyword(s):  
Solid Solution ◽  
Dielectric Permittivity ◽  
Dielectric Spectroscopy ◽  
Solid Solubility ◽  
Room Temperature ◽  
Lead Free ◽  
Ceramic System ◽  
Cationic Distribution ◽  
Lead Free Ceramic ◽  
Complex Perovskites

New lead-free relaxors have been produced from the K0.5Na0.5NbO3–SrTiO3 (KNN-STO) system. The solid solubility within the studied range of compositions (1 - x) K0.5Na0.5NbO3–xSrTiO3 was observed for x up to 0.33. A pseudo-cubic perovskite structure was determined for x = 0.15 to 0.25. The high density and the uniform distribution of fine grains and pores were confirmed by the translucency of these ceramics. The 0.85KNN-0.15STO composition reaches the dielectric permittivity of above 3000 at room temperature. Dielectric spectroscopy measurements revealed that, as with lead-based complex perovskites, the cationic distribution disorder is reflected in relaxorlike properties, thus suggesting possible applications based on this environmentally friendly lead-free ceramic system.

Electrocaloric properties of lead-free ferroelectric ceramic near room temperature

2021 ◽  
Vol 127 (6) ◽  
Author(s):  
Hend Kacem ◽  
Ah. Dhahri ◽  
Mohamed Amara Gdaiem ◽  
Z. Sassi ◽  
L. Seveyrat ◽  
...  
Keyword(s):  
Room Temperature ◽  
Ferroelectric Ceramic ◽  
Lead Free

scholarly journals All organic multiferroic magnetoelectric complexes with strong interfacial spin-dipole interaction

2021 ◽  
Vol 5 (1) ◽  
Author(s):  
Yuying Yang ◽  
Zhiyan Chen ◽  
Xiangqian Lu ◽  
Xiaotao Hao ◽  
Wei Qin
Keyword(s):  
Magnetic Field ◽  
Light Intensity ◽  
Room Temperature ◽  
Incident Light ◽  
Dipole Interaction ◽  
Interfacial Interaction ◽  
Magnetoelectric Coupling ◽  
Incident Light Intensity ◽  
Organic Ferromagnets ◽  
Magnetoelectric Coefficient

AbstractThe organic magnetoelectric complexes are beneficial for the development on flexible magnetoelectric devices in the future. In this work, we fabricated all organic multiferroic ferromagnetic/ferroelectric complexes to study magnetoelectric coupling at room temperature. Under the stimulus of external magnetic field, the localization of charge inside organic ferromagnets will be enhanced to affect spin–dipole interaction at organic multiferroic interfaces, where overall ferroelectric polarization is tuned to present an organic magnetoelectric coupling. Moreover, the magnetoelectric coupling of the organic ferromagnetic/ferroelectric complex is tightly dependent on incident light intensity. Decreasing light intensity, the dominated interfacial interaction will switch from spin–dipole to dipole–dipole interaction, which leads to the magnetoelectric coefficient changing from positive to negative in organic multiferroic magnetoelectric complexes.

A novel relaxor (Bi,Na,Ba)(Ti,Zr)O 3 lead‐free ceramic with high energy storage performance

2021 ◽  
Author(s):  
Muhammad Kashif Bilal ◽  
Jian Wang ◽  
Rabia Bashir ◽  
Huan Liu ◽  
Sana Ullah Asif ◽  
...  
Keyword(s):  
Energy Storage ◽  
High Energy ◽  
Lead Free ◽  
Storage Performance ◽  
Lead Free Ceramic ◽  
High Energy Storage
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