Journal ArticleDOI
Dielectric relaxation in Ba0.96Bi0.04Ti0.96Fe0.04O3
TLDR
In this paper, the dielectric constant as a function of temperature and frequency was obtained in the temperature range 35-180°C at 10 and 100 kHz. But the authors did not consider the phase transition of Ba0.96Bi0.04Ti 0.96Fe 0.04O3.Abstract:
Samples of Ba0.96Bi0.04Ti0.96Fe0.04O3 were prepared by a solid state reaction method. Data on the dielectric constant as a function of temperature and frequency were obtained in the temperature range 35–180 °C at 10 and 100 kHz. The material shows a diffuse phase transition. With increasing frequency, the transition temperature shifts towards lower temperature, resembling that of a relaxor ferroelectric with a negative shift in Tc. Impedance analysis confirms the relaxor behavior.read more
Citations
More filters
Journal ArticleDOI
High-permittivity core/shell stuctured NiO-based ceramics and their dielectric response mechanism
TL;DR: In this article, high-permittivity dielectric core/shell structured NiO-based ceramics (LSNO) have been successfully prepared, and the experimental results indicate that the polarization relaxation has a close relation with the conductivity in grain interior.
Patent
Piezoelectric material, piezoelectric element, and electronic apparatus
TL;DR: In this paper, the authors presented a piezoelectric material not containing lead and potassium, having a high relative density, a high Curie temperature, and a high mechanical quality factor.
Journal ArticleDOI
Impedance spectroscopy and dielectric studies of nanocrystalline iron doped barium strontium titanate ceramics
TL;DR: In this paper, the properties of a perovskite compound with tetragonal phase was confirmed through X-ray structural studies and it was shown that the properties were highly dependent on temperature and frequency.
Journal ArticleDOI
Polar Order Evolutions near the Rhombohedral to Pseudocubic and Tetragonal to Pseudocubic Phase Boundaries of the BiFeO₃-BaTiO₃ System.
TL;DR: It was found that the dielectric constant εm, remnant polarization Pr and piezoelectric coefficient d33 reach their maximum values near the rhombohedral–pseudocubic phase boundary.
Journal ArticleDOI
Structural, Magnetic, and Dielectric Investigations of the FeAlO3 Multiferroic Ceramics
Luiz Fernando Cótica,S.N. de Medeiros,Ivair A. Santos,Andrea Paesano,Eder Julio Kinast,J.B.M. da Cunha,M. Venet,D. Garcia,José Antonio Eiras +8 more
TL;DR: The FeAlO3 phase presents an orthorhombic symmetry (Pna21 space group) with a double combination of hexagonal and cubic closed packing of oxygen ions as mentioned in this paper.
References
More filters
Journal ArticleDOI
Impedance and modulus spectroscopy of semiconducting BaTiO3 showing positive temperature coefficient of resistance
TL;DR: In this article, an analysis of ac impedance data using the complex impedance plane representation gives the dc resistance of polycrystalline barium titanate (PTCR) ceramics.
Journal Article
Electrostrictive actuators: materials and applications.
TL;DR: In this paper, les ceramiques a base de titanate zirconate de plomb (PZT) et de niobate de magnesium and de PLomb (PMN) are presented.
Journal ArticleDOI
Properties of Semiconductive Barium Titanates
TL;DR: In this paper, the resistivity of barium titanate has been shown to be remarkably reduced with suitable control in valency, which is usually of the order of 10 9 ∼10 12 ohm-cm.
Journal ArticleDOI
Structural and dielectric studies of Pb(Mg1/3Nb2/3)O3–PbTiO3 ferroelectric solid solutions around the morphotropic boundary
TL;DR: In this paper, the dielectric and structural properties were interpreted in terms of relaxor→ferroelectric spontaneous phase transition, and an intermediate behavior between a relaxor and a real ferroelectric was evidenced.
Journal ArticleDOI
Electrical Conduction Anomaly in Samarium-Doped Barium Titanate
TL;DR: In this paper, the positive temperature coefficient (PTC) electrical resistivity anomaly originates at the grain boundaries of the poramics of samarium-doped BaTiO3 having identical compositions.
Related Papers (5)
Dielectric relaxation behavior in barium stannate titanate ferroelectric ceramics with diffused phase transition
Wei Xiao-Yong,Feng Yujun,Yao Xi +2 more