Structural Characteristics and Dielectric Properties of Nd-Doped SrTiO3 Ceramics by Introducing Ti Vacancies for Valence Compensation

2011 ◽  
Vol 284-286 ◽  
pp. 1435-1441 ◽  
Author(s):  
Zong Yang Shen ◽  
Yue Ming Li ◽  
Zhu Mei Wang ◽  
Yan Hong ◽  
Run Hua Liao
Keyword(s):  
Dielectric Properties ◽  
Breakdown Strength ◽  
Structural Characteristics ◽  
Sintered Sample ◽  
Energy Storage Density ◽  
Reaction Route ◽  
Storage Density ◽  
Maximum Value ◽  
Solid State Reaction Route ◽  
Scanning Electron

By introducing Ti vacancies for valence compensation, Nd-doped SrTiO3 ceramics yielding the formula NdxSr1-xTi1-x/4O3 (0≤x≤0.200) were successfully prepared by solid state reaction route in air. All the ceramics had single perovskite structure indexed by XRD profiles, while the symmetry changed from cubic to tetragonal with increasing x value. The grain size markedly decreased from ~30 μm for un-doped SrTiO3 ceramics to ~1 μm for NdxSr1-xTi1-x/4O3 ceramics with x=0.024, which was observed by scanning electron microscopy (SEM). The dielectric properties were measured at 1 kHz in ambient temperature. The dielectric constant was found to be leading to a maximum value of 5410 for as-sintered sample with x=0.104. The breakdown strength of all NdxSr1-xTi1-x/4O3 samples was examined to be higher than 10 kV/mm. These results indicated that Nd-doped SrTiO3 ceramics could be used to fabricate high voltage capacitors with enhanced energy storage density.

Characterization and Energy Storage Density of BaTiO3 - Ba(Mg1/3Nb2/3)O3 Ceramics

2010 ◽  
Vol 654-656 ◽  
pp. 2045-2048 ◽  
Author(s):  
Yi Qiu Li ◽  
Han Xing Liu ◽  
Zhong Hua Yao ◽  
Jing Xu ◽  
Yun Jiang Cui ◽  
...  
Keyword(s):  
Energy Storage ◽  
Room Temperature ◽  
Breakdown Strength ◽  
Sintering Temperature ◽  
Hysteresis Loops ◽  
Energy Storage Density ◽  
Storage Density ◽  
Two Factors ◽  
Energy Storage Applications ◽  
Scanning Electron

The energy storage density of (1-x) BaTiO3 – x Ba(Mg1/3Nb2/3)O3 (x = 0, 0.1, 0.2, 0.3) ceramics was investigated. The microstructure of samples was characterized by scanning electron microscopy (SEM). The energy storage density was calculated from the P-E hysteresis loops measured at room temperature. Experimental results show that the energy storage density of 0.9 BaTiO3 – 0.1 Ba(Mg1/3Nb2/3)O3 ceramics is highest among all compositions. At 15.8kV/mm electric field, the energy storage density of the sample can reach up to 1.07J/cm3, which is about 1.5 times higher than pure BaTiO3. The improvement of the energy density can be due to two factors: one is the improved breakdown strength caused by the optimized microstructure, the other is the decreased remnant polarization. This result indicates that bulk 0.9 BaTiO3 – 0.1 Ba(Mg1/3Nb2/3)O3 ceramic has advantages compared with pure BaTiO3 ceramic for energy storage applications, and with further improvements in microstructure and reduction of sintering temperature, could be a good candidate for energy storage capacitors.

Influence of Ta substitution for Nb in Zn3Nb2O8 and the impact on the crystal structure and microwave dielectric properties

2016 ◽  
Vol 45 (29) ◽  
pp. 11807-11816 ◽  
Author(s):  
Yonggui Zhao ◽  
Ping Zhang
Keyword(s):  
Crystal Structure ◽  
Dielectric Properties ◽  
Solid State ◽  
Solid State Reaction ◽  
Structural Characteristics ◽  
Microwave Dielectric Properties ◽  
Reaction Route ◽  
Microwave Dielectric ◽  
Solid State Reaction Route ◽  
The Impact

Zn3(Nb1−xTax)2O8 (x = 0.02–0.10) ceramics were prepared via a solid-state reaction route and the dependence of their microwave dielectric properties on their structural characteristics were investigated.

scholarly journals Evidence of Finite Magneto-electric Coupling in SmFeO3 – PbTiO3 Solid Solutions

2021 ◽  
Author(s):  
Mehak Arora ◽  
Shubhpreet Kaur ◽  
Kanika aggarwal ◽  
Sunil Kumar ◽  
Parambir Singh Malhi ◽  
...  
Keyword(s):  
Magnetic Properties ◽  
Dielectric Properties ◽  
Solid State ◽  
Solid Solutions ◽  
Dielectric Response ◽  
Reaction Route ◽  
Multiferroic Properties ◽  
Electric Coupling ◽  
Maximum Value ◽  
Solid State Reaction Route

Abstract Present work investigates the detailed multiferroic properties of Pb1 − xSmxTi1−xFexO3, (x = 0.21, 0.22, 0.23, 0.24 and 0.25) synthesize through solid state reaction route. The structural, dielectric, ferroelectric and magnetic properties were measured. A sincere study is carried out to detect the magneto-electric coupling in all the samples through magneto-dielectric, magnetization after electric poling and magneto-pe response. The maximum value of coupling coefficient (γ) and magneto-dielectric response (MDR) of sample x = 0.24 has shown by magneto-dielectric properties and magnetization after electric poling whereas magneto-pe has shown that all the samples possess multiferroic nature.

scholarly journals Dielectric Breakdown Strength and Energy Storage Density of CCTO-ZBS Electroceramic

2020 ◽  
Vol 596 ◽  
pp. 012006
Author(s):  
Muhammad Qusyairie Saari ◽  
Julie Juliewatty Mohamed ◽  
Muhammad Azwadi Sulaiman ◽  
Mohd Fariz Abd Rahman ◽  
Zainal Arifin Ahmad ◽  
...  
Keyword(s):  
Energy Storage ◽  
Dielectric Breakdown ◽  
Breakdown Strength ◽  
Energy Storage Density ◽  
Dielectric Breakdown Strength ◽  
Storage Density

All‐Organic Dielectrics with High Breakdown Strength and Energy Storage Density for High‐Power Capacitors

2021 ◽  
pp. 2100116
Author(s):  
Qi‐Kun Feng ◽  
Jiang‐Bo Ping ◽  
Jing Zhu ◽  
Jia‐Yao Pei ◽  
Lei Huang ◽  
...  
Keyword(s):  
Energy Storage ◽  
High Power ◽  
Breakdown Strength ◽  
Energy Storage Density ◽  
Storage Density ◽  
Organic Dielectrics

EFFECT OF PROCESSING CONDITIONS ON ELECTRICAL PROPERTIES OF CaCu3Ti4O12 CERAMICS

2010 ◽  
Vol 24 (12) ◽  
pp. 1267-1273 ◽  
Author(s):  
RAMAN KASHYAP ◽  
TANUJ DHAWAN ◽  
PRIKSHIT GAUTAM ◽  
O. P. THAKUR ◽  
N. C. MEHRA ◽  
...  
Keyword(s):  
Solid State ◽  
Electrical Properties ◽  
Nonlinear Behavior ◽  
Ferroelectric Hysteresis Loop ◽  
Processing Conditions ◽  
Reaction Route ◽  
Sintering Time ◽  
Maximum Value ◽  
Solid State Reaction Route ◽  
Ferroelectric Hysteresis

CaCu 3 Ti 4 O 12 ( CCTO ) ceramics were prepared by the solid-state reaction route. Effect of sintering time was studied on the polarization (P) versus electric field (E) behavior. Unlike conventional ferroelectric hysteresis loop, PE hysteresis behavior in CCTO ceramics was observed to exhibit ferroelectric-like loop where polarization does not saturate but gives a maximum value. Remnant polarization and maximum polarization was observed to increase with sintering time. Current (I)–voltage (V) characteristics shows a nonlinear behavior making them useful for varistor applications. Coefficient of non-linearity (α) is also found to depend on sintering duration.

scholarly journals Double-layer core/shell-structured nanoparticles in polyarylene ether nitrile-based nanocomposites as flexible dielectric materials

RSC Advances ◽  
2017 ◽  
Vol 7 (47) ◽  
pp. 29306-29311 ◽  
Author(s):  
Yong You ◽  
Weihua Han ◽  
Ling Tu ◽  
Yajie Wang ◽  
Renbo Wei ◽  
...  
Keyword(s):  
Energy Storage ◽  
Dielectric Properties ◽  
Double Layer ◽  
Dielectric Materials ◽  
Core Shell ◽  
Energy Storage Density ◽  
Storage Density ◽  
Polyarylene Ether Nitrile

The surface of BaTiO3 was modified with CPEN and NH2-CuPc, and the obtained CPEN-f-BT@CuPc reinforced the performance of PEN. The fabricated PEN-based nanocomposite shows stable dielectric properties and energy storage density from RT to 160 °C.

Effect of BaTiO3 nanowires on dielectric properties and energy storage density of polyimide composite films

2015 ◽  
Vol 41 (10) ◽  
pp. 13582-13588 ◽  
Author(s):  
M. Wang ◽  
W.L. Li ◽  
Y. Feng ◽  
Y.F. Hou ◽  
T.D. Zhang ◽  
...  
Keyword(s):  
Energy Storage ◽  
Dielectric Properties ◽  
Composite Films ◽  
Energy Storage Density ◽  
Storage Density
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