Effect of shifting orthorhombic-tetragonal phase transition on structure and properties of K0.5Na0.5NbO3-based lead free ceramics

2018 ◽  
Vol 735 ◽  
pp. 1328-1330 ◽  
Author(s):  
Yang Zhang ◽  
Peng Li ◽  
Bo Shen ◽  
Jiwei Zhai
Keyword(s):  
Phase Transition ◽  
Tetragonal Phase ◽  
Lead Free ◽  
Structure And Properties ◽  
Lead Free Ceramics ◽  
Tetragonal Phase Transition

scholarly journals Tetragonal-to-Tetragonal Phase Transition in Lead-Free (KxNa1−x)NbO3 (x = 0.11 and 0.17) Crystals

Crystals ◽  
2014 ◽  
Vol 4 (2) ◽  
pp. 113-122 ◽  
Author(s):  
Dabin Lin ◽  
Zhenrong Li ◽  
Fei Li ◽  
Changlong Cai ◽  
Weiguo Liu ◽  
...  
Keyword(s):  
Phase Transition ◽  
Tetragonal Phase ◽  
Lead Free ◽  
Tetragonal Phase Transition

Effect of orthorhombic–tetragonal phase transition on structure and piezoelectric properties of KNN-based lead-free ceramics

2015 ◽  
Vol 44 (17) ◽  
pp. 7797-7802 ◽  
Author(s):  
Yang Zhang ◽  
Lingyu Li ◽  
Bo Shen ◽  
Jiwei Zhai
Keyword(s):  
Phase Transition ◽  
Solid State ◽  
Piezoelectric Properties ◽  
Solid State Reaction Method ◽  
Lead Free ◽  
Polymorphic Phase Transition ◽  
Conventional Solid State Reaction ◽  
Reaction Method ◽  
Lead Free Ceramics ◽  
Tetragonal Phase Transition

Lead free piezoelectric ceramics have been prepared by the conventional solid state reaction method and the effects of SrZrO3 content on polymorphic phase transition are investigated.

Dielectric, Piezoelectric, Pyroelectric Properties and Polymorphic Phase Transition of 0.95 (KXNa1-X) NbO3-0.05LiSbO3 Lead-Free Ferroelectric Ceramics

2013 ◽  
Vol 377 ◽  
pp. 161-165
Author(s):  
Yang Yang Zhang ◽  
Jin Ping Zhang ◽  
Er Ping Wang ◽  
Sheng Lin Jiang ◽  
Lin Lu
Keyword(s):  
Phase Transition ◽  
Transition Temperature ◽  
Electrical Properties ◽  
Room Temperature ◽  
Lead Free ◽  
Ferroelectric Ceramics ◽  
Polymorphic Phase Transition ◽  
Lead Free Ceramics ◽  
Enhanced Properties ◽  
Tetragonal Phase Transition

0.95 (KXNa1-X) NbO3-0.05 LiSbO3(KNN-LS-X) (X=0.4-0.5) lead-free ceramics were prepared by conventional solid method. The effect of K/Na ratio on the dielectric, piezoelectric, pyroelectric and polymorphic phase transition was studied. The results show that the electrical properties strongly depend on the K/Na ratio. The KNN-LS-X(X=0.45) ceramics exhibit enhanced properties (εr=891.267,d33=222pC/N,Kp=0.43517,Qm=64.72,p=15×10-4C/m2K). Enhanced electrical properties of the KNN-LS-X (X=0.45) ceramics could be attributed to the effect of K/Na ratio modifying the polymorphic orthorhombic-tetragonal phase transition temperature to room temperature, which could make KNN-LS-X (X=0.45) ceramics use as a new ferroelectric sensor.

Ferroelastic behavior across the orthorhombic-to-tetragonal phase transition region of NKN-based lead-free ferroelectrics

2017 ◽  
Vol 122 (20) ◽  
pp. 204102 ◽  
Author(s):  
Alexander Martin ◽  
Ken-ichi Kakimoto ◽  
Keiichi Hatano ◽  
Yutaka Doshida ◽  
Kyle G. Webber
Keyword(s):  
Phase Transition ◽  
Transition Region ◽  
Tetragonal Phase ◽  
Lead Free ◽  
Phase Transition Region ◽  
Tetragonal Phase Transition
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