Preparation and characterization of Mn-doped Li0.06(Na0.5K0.5)0.94NbO3 lead-free piezoelectric ceramics with surface sol-gel coatings

2014 ◽  
Vol 65 (3) ◽  
pp. 412-416
Author(s):  
Ae Ri Yoo ◽  
Seong Eui Lee ◽  
Hee Chul Lee
Keyword(s):  
Sol Gel ◽  
Piezoelectric Ceramics ◽  
Lead Free ◽  
Mn Doped

KNN-BF Lead-Free Piezoelectric Ceramics Synthesized by Sol-Gel Method

2015 ◽  
Vol 740 ◽  
pp. 3-6
Author(s):  
Guo Yuan Cheng ◽  
Xing Hua Fu ◽  
Xin Jin ◽  
Wen Hong Tao ◽  
Yu Qin Qiang
Keyword(s):  
Comparative Analysis ◽  
Citric Acid ◽  
Dielectric Loss ◽  
Sintering Temperature ◽  
Sol Gel ◽  
Piezoelectric Ceramics ◽  
Lead Free ◽  
Gel Method ◽  
Sol Gel Method ◽  
Metal Chelator

KNN-BF piezoelectric ceramics synthesized by sol-gel method in this experiment. By controlling bismuth and iron content in the system to study effects of them. We selected citric acid as metal chelator and ethylene glycol as esterification agent. PH maintained 5-6 during preparation of the sol. Sintering temperature of ceramic selected 1100°C. Preparation ceramics under these conditions and comparative analysis, the structure of ceramics is single perovskite and shap of crystals are square block. With the increase of x, properties of ceramics firstly increases and then decreases: d33, εr, Qm, Kpreaching the maximum, values of them were 136pC/N, 630(f =1KHz), 212, 0.41 respectively; dielectric loss to minimum is 0.07(f =1KHz); at this point, ceramics had best performance.

Optical and electrical behavior of pristine and Mn doped 0.935(Bi 0.5Na 0.5TiO3 )-0.065 BaTiO3 lead free piezoelectric ceramics

2020 ◽  
Author(s):  
A. Paul Blessington Selvadurai ◽  
R. Suriakarthick ◽  
K. Aravinth ◽  
R. Murugaraj ◽  
C. Venkateswaran
Keyword(s):  
Piezoelectric Ceramics ◽  
Lead Free ◽  
Electrical Behavior ◽  
Mn Doped

Characterization of Mn doped ZnO wrinkle-network nanostructured thin films deposited by sol-gel spin coating technique

2019 ◽  
Author(s):  
Ashutosh Kumar Dikshit ◽  
Abhishek Kumar Singh ◽  
Kamal . ◽  
Yogendra Kumar Prajapati ◽  
Parthasarathi Chakrabarti
Keyword(s):  
Thin Films ◽  
Spin Coating ◽  
Sol Gel ◽  
Spin Coating Technique ◽  
Coating Technique ◽  
Nanostructured Thin Films ◽  
Doped Zno ◽  
Mn Doped

Core-Shell Lead-Free Piezoelectric Ceramics: Current Status and Advanced Characterization of the Bi1/2 Na1/2 TiO3 -SrTiO3 System

2015 ◽  
Vol 98 (11) ◽  
pp. 3405-3422 ◽  
Author(s):  
Matias Acosta ◽  
Ljubomira A. Schmitt ◽  
Leopoldo Molina-Luna ◽  
Michael C. Scherrer ◽  
Michael Brilz ◽  
...  
Keyword(s):  
Piezoelectric Ceramics ◽  
Advanced Characterization ◽  
Lead Free ◽  
Current Status ◽  
Core Shell

Preparation and Characterization of High Textured KSr2Nb5O15 Lead-Free Piezoelectric Ceramics

2008 ◽  
Vol 368-372 ◽  
pp. 1905-1907
Author(s):  
Li Jin Xie ◽  
Gao Jie Xu ◽  
Zhi Xiang Li
Keyword(s):  
Solid State ◽  
Molten Salt ◽  
Grain Orientation ◽  
Sintered Density ◽  
Raw Materials ◽  
Piezoelectric Ceramics ◽  
Lead Free ◽  
Molten Salt Method ◽  
Templated Grain Growth

Anisometric KSr2Nb5O15 (KSN) particles were synthesized by molten salt method with SrCO3, Nb2O5 and KCl as raw materials. With K2CO3, SrCO3 and Nb2O5 starting materials, KSN lead-free piezoelectric ceramics were prepared by conventional ceramics technique and reactive templated grain growth (RTGG) method, respectively. In the RTGG process, green compacts were fabricated by tapecasting using anisometric KSN as template particles. The KSN particles prepared by molten salt method were rodlike in shape and dense. The KSN ceramics prepared by RTGG not only had higher degree of grain orientation but higher sintered density compared with that prepared by solid-state reaction.

The Preparation and Properties of (Na0.5+xK0.5-2xLix)NbO3 Lead-Free Piezoelectric Ceramics

2014 ◽  
Vol 602-603 ◽  
pp. 826-829
Author(s):  
Hong Yun Ma ◽  
Yan Gai Liu ◽  
Jin Qiu Zhao ◽  
Zhao Hui Huang ◽  
Ming Hao Fang
Keyword(s):  
Phase Composition ◽  
Piezoelectric Properties ◽  
Ferroelectric Properties ◽  
Sol Gel ◽  
Piezoelectric Ceramics ◽  
Lead Free ◽  
Piezoelectric Constant ◽  
Pressureless Sintering ◽  
Gel Method ◽  
Sol Gel Method

In this paper, the KNN powders with Li+ substituted (K0.5Na0.5)+ were prepared by the sol-gel method in order to make powders pure, (Na0.50+xK0.50-2xLix) -NbO3 (x=0, 0.04, 0.06, 0.08) ceramics were prepared by pressureless sintering. The phase composition of powders was determined by XRD. The effects of the Li+ substitution on piezoelectric and ferroelectric properties of ceramics were systematically studied for determining optimal Li+ content. Li+ can significantly increase the piezoelectric constant of ceramic. When Li+ content was 0.04, piezoelectric properties of ceramics were the best, d33=115 pC/N, Pr=6.35 μC/cm2, Ec=14.24 kV/cm.

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