Role of sintering time, crystalline phases and symmetry in the piezoelectric properties of lead-free KNN-modified ceramics

2010 ◽  
Vol 123 (1) ◽  
pp. 91-97 ◽  
Author(s):  
F. Rubio-Marcos ◽  
P. Marchet ◽  
T. Merle-Méjean ◽  
J.F. Fernandez
Keyword(s):  
Piezoelectric Properties ◽  
Lead Free ◽  
Crystalline Phases ◽  
Sintering Time

scholarly journals Current Development in Lead-FreeBi0.5(Na,K)0.5TiO3-Based Piezoelectric Materials

2014 ◽  
Vol 2014 ◽  
pp. 1-13 ◽  
Author(s):  
Ngo Duc Quan ◽  
Luong Huu Bac ◽  
Duong Van Thiet ◽  
Vu Ngoc Hung ◽  
Dang Duc Dung
Keyword(s):  
Solid Solution ◽  
Piezoelectric Properties ◽  
Domain Switching ◽  
Piezoelectric Materials ◽  
Secondary Phase ◽  
Lead Free ◽  
Secondary Phases ◽  
Current Development ◽  
Cubic Phases

The lead-free piezoelectric ceramics display good piezoelectric properties which are comparable with Pb(Zr,Ti)O3(PZT) and these materials overcome the hazard to the environment and human health. The Bi0.5(Na,K)0.5TiO3(BNKT) is rapidly developed because of good piezoelectric, ferroelectric, and dielectric properties compared to PZT. The origin of giant strain of BNKT piezoelectric materials was found at morphotropic phase boundary due to crystal change from tetragonal to orthorhombic and/or precipitation of cubic phases, in addition to domain switching mechanism. The dopants or secondary phases withABO3structure as solid solution are expected to change the crystal structure and create the vacancies which results in enhancement of the piezoelectric properties. In this work, we reviewed the current development of BNKT by dopants and secondary phase as solid solution. Our discussion will focus on role of dopants and secondary phase to piezoelectric properties of BNKT. This result will open the direction to control the properties of lead-free piezoelectric materials.

Role of antimony in the phase structure and electrical properties of potassium–sodium niobate lead-free ceramics

RSC Advances ◽  
2015 ◽  
Vol 5 (19) ◽  
pp. 14575-14583 ◽  
Author(s):  
Jiagang Wu ◽  
Hong Tao ◽  
Yuan Yuan ◽  
Xiang Lv ◽  
Xiangjian Wang ◽  
...  
Keyword(s):  
Electrical Properties ◽  
Phase Structure ◽  
Piezoelectric Properties ◽  
Lead Free ◽  
Sodium Niobate ◽  
Potassium Sodium Niobate ◽  
Potassium Sodium ◽  
The Past ◽  
Lead Free Ceramics

In the past ten years, antimony has been reported to strongly affect the developments in the piezoelectric properties of (K,Na)NbO3 (KNN) lead-free ceramics, that is, its enhanced piezoelectric activity is closely related to the doped antimony as well its content.

Lead-Free Piezoceramics: Revealing the Role of the Rhombohedral–Tetragonal Phase Coexistence in Enhancement of the Piezoelectric Properties

2015 ◽  
Vol 7 (41) ◽  
pp. 23080-23088 ◽  
Author(s):  
Fernando Rubio-Marcos ◽  
Rigoberto López-Juárez ◽  
Rocio E. Rojas-Hernandez ◽  
Adolfo del Campo ◽  
Neftalí Razo-Pérez ◽  
...  
Keyword(s):  
Tetragonal Phase ◽  
Piezoelectric Properties ◽  
Phase Coexistence ◽  
Lead Free

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

Influence of sintering temperature on piezoelectric properties of (K0.5Na0.5)NbO3–LiNbO3 lead-free piezoelectric ceramics

2007 ◽  
Vol 42 (9) ◽  
pp. 1594-1601 ◽  
Author(s):  
Hongliang Du ◽  
Fusheng Tang ◽  
Fa Luo ◽  
Dongmei Zhu ◽  
Shaobo Qu ◽  
...  
Keyword(s):  
Piezoelectric Properties ◽  
Sintering Temperature ◽  
Piezoelectric Ceramics ◽  
Lead Free
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