scholarly journals Enhancing the electrical properties of high-Curie temperature BNT–PZT piezoceramics by oxides-hydrothermal method

AIP Advances ◽  
2021 ◽  
Vol 11 (7) ◽  
pp. 075119
Author(s):  
Bo Li ◽  
Fei Zhu ◽  
Deyi Zheng ◽  
Chi pang ◽  
Zihao Fei
Keyword(s):  
Electrical Properties ◽  
Curie Temperature ◽  
Hydrothermal Method ◽  
High Curie Temperature

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.

Microstructure and Electrical Properties of BaTiO3-Based PTC Ceramics Prepared from Nanopowders

2008 ◽  
Vol 368-372 ◽  
pp. 456-458
Author(s):  
Huan Liu ◽  
Shu Ping Gong ◽  
Dong Xiang Zhou ◽  
Chun Fang Cheng ◽  
Zhi Ping Zheng ◽  
...  
Keyword(s):  
Grain Size ◽  
Electrical Properties ◽  
Curie Temperature ◽  
Hydrothermal Method ◽  
Hydrothermal Treatment ◽  
Theoretical Density ◽  
Ceramic Samples ◽  
Average Grain Size ◽  
Donor Dopant ◽  
Cubic Structure

Dense PTC ceramics were prepared with BaTiO3 nanopowders synthesized by hydrothermal method. BaCO3 and Ti(OC4H9)4 were used as barium and titanium sources, and Y(NO)3·6H2O as the donor dopant respectively. The average grain size of the powders obtained after hydrothermal treatment at 160°C for 9h was about 30nm with cubic structure. Mn(NO3)2 was introduced to the as-prepared nanopowders in order to improve the PTC effect. After sintered at 1280°C, the PTC ceramic samples exhibited sufficient resistance jump ratio(1.086×103) around Curie temperature, the density of which was 5.81g/cm3(96.5% of the theoretical density).

Enhancing electrical properties of high-Curie temperature piezoelectric ceramics BNT-PZT and their mechanism

2019 ◽  
Vol 19 (12) ◽  
pp. 1367-1373 ◽  
Author(s):  
Wanwan Ji ◽  
Bijun Fang ◽  
Xiangyong Zhao ◽  
Shuai Zhang ◽  
Xiaolong Lu ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Curie Temperature ◽  
Piezoelectric Ceramics ◽  
High Curie Temperature

Preparation of Bi-Based High Curie Temperature PTCR Ceramic

2008 ◽  
Vol 368-372 ◽  
pp. 459-460
Author(s):  
Yun He Liang ◽  
Yong Ping Pu ◽  
Hong Yan Miao
Keyword(s):  
Electrical Properties ◽  
Curie Temperature ◽  
Mixed Oxide ◽  
High Curie Temperature ◽  
Ceramic Samples ◽  
Two Systems ◽  
Nb Content

PTCR ceramic samples of two systems, Bi4Ti3-xNbxO12+x/2(BTNO, 0≤x≤0.01) and Bi4Ti3O12 + (1-z)BaTi1-xNbxO3+x/2+2.0mol%TiO2 (BTO+(1-z)BTNO, 0≤x≤0.01, 0≤z≤1.0), were prepared by mixed oxide method. The properties of the sapmples were characterized by XRD, AFM and electrical properties testing. The results showed that single BaBi4Ti4O15 was obtained when x=0.05 and z=0.5. The roomtemperature resistivity of BTO+(1-z)BTNO ceramic sintered in air was 102-1045·cm. The minimum resistivity occurred at Nb content of about 0.3mol%.

Preparation and electrical properties of high-Curie temperature ferroelectrics

2009 ◽  
Vol 45 (2) ◽  
pp. 20302 ◽  
Author(s):  
B.-J. Fang ◽  
C.-L. Ding ◽  
W. Liu ◽  
L.-Q. Li ◽  
L. Tang
Keyword(s):  
Electrical Properties ◽  
Curie Temperature ◽  
High Curie Temperature

Electrical properties of high Curie temperature (1−x)Pb(In1/2Nb1/2)O3–xPbTiO3 single crystals grown by the solution Bridgman technique

2005 ◽  
Vol 134 (8) ◽  
pp. 559-563 ◽  
Author(s):  
Ziqing Duan ◽  
Guisheng Xu ◽  
Xiaofeng Wang ◽  
Danfeng Yang ◽  
Xiaoming Pan ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Curie Temperature ◽  
Single Crystals ◽  
High Curie Temperature ◽  
Bridgman Technique
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