Excellent dielectric properties and enhanced temperature stability of CaZrO3-modified BaTiO3 ceramic capacitors

2020 ◽  
Vol 31 (16) ◽  
pp. 13088-13094
Author(s):  
Xiao Han ◽  
Lili Zhao ◽  
Zhi’ang Zhang ◽  
Jingru Zhang ◽  
Quan Jin ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Temperature Stability ◽  
Batio3 Ceramic ◽  
Ceramic Capacitors

High temperature lead-free BNT-based ceramics with stable energy storage and dielectric properties

2020 ◽  
Vol 8 (2) ◽  
pp. 683-692 ◽  
Author(s):  
Chaoqiong Zhu ◽  
Ziming Cai ◽  
Bingcheng Luo ◽  
Limin Guo ◽  
Longtu Li ◽  
...  
Keyword(s):  
High Temperature ◽  
Energy Storage ◽  
Dielectric Properties ◽  
Temperature Stability ◽  
Lead Free ◽  
Capacitance Variation

The designed 0.8BNTSZ–0.2NN ceramic demonstrates superb temperature stability with a capacitance variation <±15 from −55 °C to 545 °C.

Intrinsic dielectric properties and lattice vibrational characteristics of single phase BaTiO3 ceramic

2021 ◽  
Vol 32 (19) ◽  
pp. 24041-24049
Author(s):  
Long Wang ◽  
Jiqing Lv ◽  
Feng Shi ◽  
Kaixin Song ◽  
Wen Lei ◽  
...  
Keyword(s):  
Dielectric Properties ◽  
Single Phase ◽  
Batio3 Ceramic ◽  
Vibrational Characteristics

SINTERING BEHAVIOR AND DIELECTRIC PROPERTIES OF Ba0.985Bi0.01TiO3-Ba0.9955La0.003TiO3 FINE-POWDERS

2013 ◽  
Vol 27 (12) ◽  
pp. 1350081 ◽  
Author(s):  
JING WANG ◽  
SHENGLIN JIANG ◽  
CHUNZHENG WANG ◽  
HAO YAO ◽  
TINGWEI WANG
Keyword(s):  
Dielectric Properties ◽  
Temperature Stability ◽  
Sintering Behavior ◽  
X Ray Diffraction ◽  
Soft Chemistry ◽  
Fine Powders ◽  
Microstructure Evaluation ◽  
Maximum Dielectric Constant ◽  
Composition Inhomogeneity ◽  
Tan Δ

Ba 0.985 Bi 0.01 TiO 3- Ba 0.9955 La 0.003 TiO 3 fine-powders were synthesized by two-step soft chemistry method. Phase analysis and microstructure evaluation conducted by X-ray diffraction and scanning electron microscopy confirmed the provskite structure of the ceramic grain. Different sintering temperatures were considered to optimize the density and dielectric properties. The maximum dielectric constant decreased first, and then increased before dropping again, reflecting the change of relative density. Samples sintered at 1270°C exhibited the best temperature stability due to composition inhomogeneity and compact properties. The dielectric properties of the sample sintered at 1270°C were: ε = ~8,960, tan δ < 0.28, ΔC/C20° C at -55°C, 110°C and 150°C were -5.2%, 13.8% and -12.8%, respectively.

Low Temperature Sintering of Lead-Free BaTiO3-Based X9R Ceramics with Bi2O3 Dopant and Assisted by LiF-CaF2 Flux Agent

2014 ◽  
Vol 906 ◽  
pp. 31-36 ◽  
Author(s):  
Bao Lin Zhang ◽  
Bin Bin Zhang ◽  
Ning Ning Wang ◽  
Jun Zhang
Keyword(s):  
Dielectric Constant ◽  
Dielectric Properties ◽  
Low Temperature ◽  
Sintering Temperature ◽  
Temperature Stability ◽  
Lead Free ◽  
Low Temperature Sintering ◽  
Pure Silver ◽  
Flux Agent ◽  
Low Sintering Temperature

The sintering temperature of BaTiO3powder was reduced to 950°C due to the Bi2O3-LiF-CaF2addition.Excellent densification was achieved after sintering at 950°C for 10h. The low sintering temperature of newly developed capacitor materials allows a co-firing with pure silver electrodes.The dielectric constant and the temperature stability of the dielectric constant satisfied the X9R standard, which dielectric properties of were ε25°C1115, ΔC/C25°C±12% (55~200°C), tanδ1.5% (25°C).

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