Study of dielectric and resonance and anti-resonance property of dielectric relaxor ceramic: [Ba(Nd0.1Ti0.8Nb0.1)O3]0.50[Na0.5Bi0.5TiO3]0.40[CaTiO3]0.10

2017 ◽  
Vol 506 (1) ◽  
pp. 184-192 ◽  
Author(s):  
Syed Mahboob ◽  
Rizwana ◽  
G. Prasad ◽  
G. S. Kumar
Keyword(s):  
Resonance Property ◽  
Dielectric Relaxor

POLARIZATION REVERSAL AND ELECTROMECHANICAL STUDIES ON Ba(NdxTi1-2xNbx)O3 DIELECTRIC RELAXOR CERAMICS PREPARED THROUGH CONVENTIONAL AND MICROWAVE SINTERING ROUTE

2007 ◽  
Vol 21 (13) ◽  
pp. 807-816 ◽  
Author(s):  
SYED MAHBOOB ◽  
G. PRASAD ◽  
G. S. KUMAR
Keyword(s):  
Electric Field ◽  
Applied Electric Field ◽  
Remnant Polarization ◽  
Microwave Sintering ◽  
Polarization Reversal ◽  
Ceramic Samples ◽  
Polycrystalline Ceramic ◽  
Dielectric Relaxor

Polarization and capacitance studies as a function of applied electric field were done on the Nd and Nb -doped polycrystalline ceramic samples. The result indicates that the ceramic samples show low values of remnant polarization. The capacitance value indicates that microwave sintered samples shows higher capacitance tunability when compared to conventional sintered samples. The results obtained from electromechanical studies are also discussed.

Resonance property of the surface plasmonic device of double stacked nanocone

2017 ◽  
Vol 46 (9) ◽  
pp. 934001
Author(s):  
朱振东 Zhu Zhendong ◽  
白本锋 Bai Benfeng ◽  
谭峭峰 Tan Qiaofeng ◽  
李群庆 Li Qunqing ◽  
王雪深 Wang Xueshen ◽  
...  
Keyword(s):  
Resonance Property ◽  
Plasmonic Device

Study on Microstructure and Properties of BTBY Piezoelectric Ceramics with High Curie Temperature

2010 ◽  
Vol 156-157 ◽  
pp. 1541-1544
Author(s):  
Bo Li ◽  
Feng Gao ◽  
Liang Liang Liu ◽  
Bei Xu
Keyword(s):  
Dielectric Constant ◽  
Grain Size ◽  
Electrical Properties ◽  
Dielectric Loss ◽  
Curie Temperature ◽  
Grain Morphology ◽  
High Curie Temperature ◽  
Microstructure And Properties ◽  
New Phase ◽  
Dielectric Relaxor

(1-x)(0.6BIT-0.4BT)-xBiYbO3(BTBY) ceramics with high Curie temperature were prepared by the conventional processing. The effect of BiYbO3 content on the microstructure and electrical properties was investigated. The results show that the main phase of BTBY ceramics is BIT-BT, and a new phase BaBi4Ti4O15 (BBT) appeared. The grain morphology of BTPY ceramics are platelike and the grain size was significantly increased with increasing content of BiYbO3 .Tc of all the BTBY samples are above 440 . The BTBY ceramics show obvious dielectric relaxor characteristic. The dispersion factor γ, the dielectric constant εr, and the dielectric loss tanδ decreased with increasing the content of BiYbO3. When the content of BiYbO3 is 0.06, the optimal properties of BTBY ceramics are obtained, Tc is 457 , εr is 165, tanδ is 0.0223 and d33 is 10 pC·N-1.

Structural, ferromagnetic, electrical, and dielectric relaxor properties of BaTiO3 and CoFe2O4 bulk, nanoparticles, and nanocomposites materials for electronic devices

2020 ◽  
Vol 128 (12) ◽  
pp. 124101
Author(s):  
Syed Adnan Raza ◽  
Saif Ullah Awan ◽  
Shahzad Hussain ◽  
Saqlain A. Shah ◽  
Asad M. Iqbal ◽  
...  
Keyword(s):  
Electronic Devices ◽  
Dielectric Relaxor

EFFECT OF Pr DOPING ON FERROELECTRIC BEHAVIORS OF Pb(Zr0.65Ti0.35)O3

2008 ◽  
Vol 22 (13) ◽  
pp. 2071-2082
Author(s):  
F. YUAN ◽  
F. GAO ◽  
K. F. WANG ◽  
S. DONG ◽  
Y. WANG ◽  
...  
Keyword(s):  
Piezoelectric Properties ◽  
Ferroelectric Properties ◽  
Crystallographic Structure ◽  
Dielectric Measurements ◽  
Ceramic Samples ◽  
Solid State Sintering ◽  
Sintering Method ◽  
Rhombohedral Symmetry ◽  
Ferroelectric And Piezoelectric Properties ◽  
Dielectric Relaxor

Pr -doped Pb ( Zr 0.65 Ti 0.35) O 3 ( Pb 1-x Pr x( Zr 0.65 Ti 0.35)1-x/4 O 3, PPZT) ceramic samples are prepared using conventional solid-state sintering method, and their structural, dielectric, ferroelectric, and piezoelectric properties are investigated, focusing on the effects of Pr -doping. Upon increasing Pr doping level x, a transition of the crystallographic structure from rhombohedral symmetry to tetrahedral and finally to pseudocubic symmetry is observed at x ~ 0.08. The detailed dielectric measurements present a clear indication of relaxor-like behaviors at x = 0.08, while the samples at x < 0.08 offer slightly improved ferroelectric properties compared with pure Pb ( Zr 0.65 Ti 0.35) O 3. In spite of the dielectric relaxor behaviors induced by Pr -doping, both the ferroelectric and piezoelectric properties of PPZT are degraded at x = 0.08. The physics underlying the Pr -doping induced relaxor behaviors is then discussed.

Design of an Ultra-Wideband Wilkinson Power Divider in Modern Electronic Engineering

2015 ◽  
Vol 713-715 ◽  
pp. 1048-1051
Author(s):  
Xin Cao ◽  
Zong Xi Tang
Keyword(s):  
Communication Systems ◽  
Ultra Wideband ◽  
Power Divider ◽  
Frequency Range ◽  
Resonance Property ◽  
Electronic Engineering ◽  
Quarter Wavelength ◽  
Working Frequency ◽  
Wilkinson Power Divider ◽  
Good Agreement

In this paper, an ultra-wideband Wilkinson power divider based on the quarter wavelength transformation is proposed. The proposed power divider utilizes the resonance property of the four stage quarter wavelength microstrip stubs to increase the isolation between the to output ports. As the measured results show that, the power divider has the insertion loss less than 1.3dB with the minimum isolation 15.4dB in the working frequency range from 1GHz to 5GHz. The simulated results and measured results are in good agreement and the proposed power divider can be applied in the communication systems in modern electronic engineering.

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