scholarly journals Piezoelectric Ceramics of the (1 − x)Bi0.50Na0.50TiO3–xBa0.90Ca0.10TiO3 Lead-Free Solid Solution: Chemical Shift of the Morphotropic Phase Boundary, a Case Study for x = 0.06

Materials ◽  
2017 ◽  
Vol 10 (7) ◽  
pp. 736 ◽  
Author(s):  
Rodrigo Vivar-Ocampo ◽  
Lorena Pardo ◽  
David Ávila ◽  
Emilio Morán ◽  
Amador González ◽  
...  
Keyword(s):  
Solid Solution ◽  
Chemical Shift ◽  
Phase Boundary ◽  
Morphotropic Phase Boundary ◽  
Piezoelectric Ceramics ◽  
Lead Free

Investigation of the Morphotropic Phase Boundary (MPB) of (1-x-y)BaZrO3-x(K0.45Na0.5Li0.05)NbO3-yBi (Mg0.5Ti0.5)O3

2014 ◽  
Vol 787 ◽  
pp. 242-246
Author(s):  
Rui Lin Wu ◽  
Tomoaki Karaki ◽  
Jiang Tao Zeng ◽  
Liao Ying Zheng ◽  
Wei Ruan ◽  
...  
Keyword(s):  
Phase Boundary ◽  
Morphotropic Phase Boundary ◽  
Tetragonal Phase ◽  
Room Temperature ◽  
Piezoelectric Properties ◽  
Piezoelectric Ceramics ◽  
Solid State Reaction Method ◽  
Lead Free ◽  
Reaction Method ◽  
Dielectric And Piezoelectric Properties

Lead-based piezoelectric ceramics have excellent piezoelectric properties with the compositions near the rhombohedral-tetragonal morphotropic phase boundary (MPB)[1,2]. In these materials, the dielectric and piezoelectric properties show the maximal values at MPB. For lead-free piezoelectric ceramics, finding the MPB area is a promising way to improve their properties. In this paper, the (1-x-y)BaZrO3-x(K0.45Na0.5Li0.05)NbO3-yBi (Mg0.5Ti0.5)O3 lead-free piezoelectric ceramics were prepared by solid-state reaction method, and their piezoelectric properties and dielectric properties were investigated. With the increase of KNLN content, the crystal structure changed from rombohedral phase to tetragonal phase, thus existed a MPB[3,4] between rombohedral and tetragonal phase. At room temperature, the specimen with the composition at MPB (x=0.93, y=0.01) shows the optimal piezoelectric properties (d33=225pC/N and kp=45%), which indicates that this material is a potential lead-free piezoceramic.

Construction of new morphotropic phase boundary in 0.94(K0.4−xNa0.6BaxNb1−xZrx)O3–0.06LiSbO3 lead-free piezoelectric ceramics

2011 ◽  
Vol 46 (21) ◽  
pp. 6871-6876 ◽  
Author(s):  
Wenfeng Liang ◽  
Wenjuan Wu ◽  
Dingquan Xiao ◽  
Jianguo Zhu ◽  
Jiagang Wu
Keyword(s):  
Phase Boundary ◽  
Morphotropic Phase Boundary ◽  
Piezoelectric Ceramics ◽  
Lead Free

Morphotropic phase boundary and electric properties in (1−x)Bi0.5Na0.5TiO3-xBiCoO3 lead-free piezoelectric ceramics

2012 ◽  
Vol 111 (12) ◽  
pp. 124113 ◽  
Author(s):  
Fei-Fei Guo ◽  
Bin Yang ◽  
Shan-Tao Zhang ◽  
Xiao Liu ◽  
Li-Mei Zheng ◽  
...  
Keyword(s):  
Phase Boundary ◽  
Morphotropic Phase Boundary ◽  
Piezoelectric Ceramics ◽  
Electric Properties ◽  
Lead Free

Hydrothermal epitaxy of lead free (Na,K)NbO3-based piezoelectric films

2013 ◽  
Vol 1547 ◽  
pp. 45-52
Author(s):  
Albertus D. Handoko ◽  
Gregory K. L. Goh
Keyword(s):  
Thin Films ◽  
Solid Solution ◽  
Phase Boundary ◽  
Hydrothermal Method ◽  
Morphotropic Phase Boundary ◽  
Solid Solutions ◽  
Lead Zirconate Titanate ◽  
Piezoelectric Properties ◽  
Lead Zirconate ◽  
Lead Free

ABSTRACTLead free niobate solid solutions can exhibit piezoelectric properties comparable to that of lead zirconate titanate piezoelectrics in the vicinity of its morphotropic phase boundary (MPB). Here we describe how (Na,K)NbO3 and (Na,K)NbO3-LiTaO3 solid solution thin films can be grown epitaxially by the hydrothermal method at temperatures of 200 °C or below in water and be made ferro- and piezoelectrically active by a simple 2 step post growth treatment.

Phase transitions and the piezoelectricity around morphotropic phase boundary in Ba(Zr0.2Ti0.8)O3-x(Ba0.7Ca0.3)TiO3 lead-free solid solution

2014 ◽  
Vol 105 (16) ◽  
pp. 162908 ◽  
Author(s):  
Le Zhang ◽  
Ming Zhang ◽  
Liang Wang ◽  
Chao Zhou ◽  
Zhen Zhang ◽  
...  
Keyword(s):  
Solid Solution ◽  
Phase Transitions ◽  
Phase Boundary ◽  
Morphotropic Phase Boundary ◽  
Lead Free
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