The (1-x)Ba0.85Ca0.15Zr0.08Ti0.92 —xGe lead-free ceramics with high piezoelectric activity and ultrahigh dielectric constant

2019 ◽  
Vol 45 (1) ◽  
pp. 1416-1419 ◽  
Author(s):  
Fangfang Zeng ◽  
Qibin Liu ◽  
Shiqiang Peng ◽  
Yuanyu Wang ◽  
Enpei Cai ◽  
...  
Keyword(s):  
Dielectric Constant ◽  
Lead Free ◽  
Piezoelectric Activity ◽  
Lead Free Ceramics

The Research on the Piezoelectric and Dielectric Properties of Bi0.5(Nak)0.5-BaTiO3 Lead-Free Ceramics

2014 ◽  
Vol 1035 ◽  
pp. 422-425
Author(s):  
Jian Yong Guo ◽  
Tao Sheng Zhou ◽  
Ji Hong Liao
Keyword(s):  
Dielectric Constant ◽  
Dielectric Properties ◽  
Perovskite Structure ◽  
Relative Dielectric Constant ◽  
Lead Free ◽  
Reactive Sintering ◽  
Lead Free Ceramics ◽  
Xrd Patterns ◽  
Sintering Method

The Bi0.5(Na1-xKx)0.5-yBaTiO3(BNK-BT) lead-free ceramics have been prepared by the solild reactive sintering method. XRD patterns show the BNK-BT ceramics had a perovskite structure. Piezoelectric and dielectric properties of the ceramics also have been studied. The results show that the samples had the best piezoelectric and dielectric properties when x=0.20, y=0.10. And the maximum of d33is 149 pC/N, while the relative dielectric constant is 1087.

Electrical Properties of Modified BNT Based Lead-Free Ceramics

2016 ◽  
Vol 872 ◽  
pp. 87-91
Author(s):  
Supalak Manotham ◽  
Tawee Tunkasiri ◽  
Pharatree Jaita ◽  
Pichitchai Butnoi ◽  
Denis Russell Sweatman ◽  
...  
Keyword(s):  
Dielectric Constant ◽  
Solid State ◽  
Electrical Properties ◽  
Sintering Temperature ◽  
Ferroelectric Properties ◽  
Lead Free ◽  
Second Phase ◽  
X Ray Diffraction ◽  
X Ray ◽  
Lead Free Ceramics

The properties of modified Bi0.5Na0.5TiO3 (BNT) based lead-free ceramics were investigated. The BNT-based ceramics were prepared by a solid-state mixed oxide method Phase formation was determined by X-ray diffraction technique (XRD). The X-ray diffraction analysis of the ceramics suggested that all samples exhibited a perovskite structure without second phase. The value of dielectric constant increased with increasing in sintering temperature. Moreover, high sintering temperatures could improve ferroelectric properties of BNT base lead-free ceramics.

Optimum Sintering Temperature for Fabrication of 0.8Bi0.5Na0.5TiO3-0.2Bi0.5K0.5TiO3 Lead-Free Ceramics by Combustion Technique

2011 ◽  
Vol 474-476 ◽  
pp. 1754-1759 ◽  
Author(s):  
Atthakorn Thongtha ◽  
Theerachai Bongkarn
Keyword(s):  
Dielectric Constant ◽  
Remanent Polarization ◽  
Sintering Temperature ◽  
Sodium Titanate ◽  
Lead Free ◽  
Bismuth Sodium Titanate ◽  
Sintered Ceramic ◽  
Lead Free Ceramics ◽  
Average Grain Size ◽  
Combustion Technique

The effect of sintering temperatures (1050-1200 °C) on the phase formation, microstructure and dielectric properties of a binary system lead-free ceramic bismuth sodium titanate–bismuth potassium titanate were investigated. 0.8Bi0.5Na0.5TiO3-0.2Bi0.5K0.5TiO3; BNKT ceramics were successfully fabricated using the combustion technique. XRD results showed the rhombohedral-tetragonal morphotropic phase boundary (MPB). The SEM results showed the average grain size (0.51-2.59 µm) of the samples increased with the increase of sintering temperatures. The sample sintered at the optimum temperature of 1150 °C exhibited the maximum density, shrinkage, dielectric constant at Curie temperature and remanent polarization (Pr) which were around 5.65 g/cm3, 17.75%, 5014 and 1.6 mC/cm2, respectively. The dielectric constant was related to the XRD results and density of the sintered ceramic.

Enhanced piezoelectric activity in high-temperature Bi1−x−ySmxLayFeO3 lead-free ceramics

2015 ◽  
Vol 3 (15) ◽  
pp. 3684-3693 ◽  
Author(s):  
Ting Zheng ◽  
Jiagang Wu
Keyword(s):  
High Temperature ◽  
Dielectric Loss ◽  
Lead Free ◽  
Piezoelectric Activity ◽  
Low Dielectric ◽  
Lead Free Ceramics

In this work, a high piezoelectric activity (d33∼50 pC N−1) and a low dielectric loss (tan δ∼0.43%) have been obtained in high-temperature Bi1−x−ySmxLayFeO3 piezoceramics with x = 0.025 and y = 0.05.

scholarly journals Research progress of high piezoelectric activity of potassium sodium niobate based lead-free ceramics

2020 ◽  
Vol 69 (12) ◽  
pp. 127707
Author(s):  
Jie Xing ◽  
Zhi Tan ◽  
Ting Zheng ◽  
Jia-Gang Wu ◽  
Ding-Quan Xiao ◽  
...  
Keyword(s):  
Lead Free ◽  
Research Progress ◽  
Sodium Niobate ◽  
Potassium Sodium Niobate ◽  
Potassium Sodium ◽  
Piezoelectric Activity ◽  
Lead Free Ceramics

Effect of LiSbO3 Content on the Microstructure and Piezoelectric Properties of K0.5Na0.5NbO3 Lead-free Ceramics Doped with BiMnO3

2013 ◽  
Vol 28 (3) ◽  
pp. 321-325
Author(s):  
Min-Hong JIANG ◽  
Xin-Yu LIU ◽  
Guo-Hua CHEN ◽  
Gui-Sheng ZHU ◽  
Ji-Wen XU ◽  
...  
Keyword(s):  
Piezoelectric Properties ◽  
Lead Free ◽  
Lead Free Ceramics

Sintering Processing and Piezoelectric Properties of K0.5Na0.5NbO3-BiFeO3 Lead-free Ceramics

2009 ◽  
Vol 24 (6) ◽  
pp. 1178-1182
Author(s):  
Min-Hong JIANG ◽  
He-Xin CHEN ◽  
Xin-Yu LIU ◽  
Li-Qing YANG ◽  
Chang-Rong ZHOU
Keyword(s):  
Piezoelectric Properties ◽  
Lead Free ◽  
Lead Free Ceramics

scholarly journals Boosted piezoelectricity with excellent thermal stability in tetragonal NaNbO3-based ceramics

2020 ◽  
Author(s):  
Lu Wang ◽  
Shengdong Sun ◽  
Huajie Luo ◽  
Yang Ren ◽  
Hui Liu ◽  
...  
Keyword(s):  
Thermal Stability ◽  
Temperature Stability ◽  
Lead Free ◽  
Excellent Thermal Stability ◽  
Lead Free Ceramics ◽  
Piezoelectric Performance

The realization of high piezoelectric performance and excellent temperature stability simultaneously in lead-free ceramics is the key for replacing Pb-containing perovskites in industry. In this study, large piezoelectric performance (d33...

Sandwich structured lead-free ceramics based on Bi0.5Na0.5TiO3 for high energy storage

2021 ◽  
pp. 130669
Author(s):  
Fei Yan ◽  
Hairui Bai ◽  
Yunjing Shi ◽  
Guanglong Ge ◽  
Xiaofeng Zhou ◽  
...  
Keyword(s):  
Energy Storage ◽  
High Energy ◽  
Lead Free ◽  
Lead Free Ceramics ◽  
High Energy Storage
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