The role of tetragonal side morphotropic phase boundary in modified relaxor-PbTiO3 crystals for high power transducer applications

2013 ◽  
Vol 114 (14) ◽  
pp. 144106 ◽  
Author(s):  
Lingping Kong ◽  
Gang Liu ◽  
Shujun Zhang ◽  
Haozhe Liu
Keyword(s):  
Phase Boundary ◽  
Morphotropic Phase Boundary ◽  
High Power ◽  
Power Transducer

scholarly journals Role of Extrinsic Contribution to Temperature Stability of Piezoelectricity for (K,Na)NbO3-(Bi,M)ZrO3 Ceramics with Morphotropic Phase Boundary

Energies ◽  
2020 ◽  
Vol 13 (8) ◽  
pp. 1972
Author(s):  
Gyoung-Ja Lee ◽  
Min-Ku Lee
Keyword(s):  
Thermal Stability ◽  
Phase Boundary ◽  
Morphotropic Phase Boundary ◽  
Intensity Variation ◽  
Temperature Stability ◽  
Boundary Region ◽  
X Ray Diffraction ◽  
T Phase

Temperature stability of dielectric, ferroelectric, and piezoelectric properties were investigated in situ by choosing (K,Na)NbO3-(Bi,K)ZrO3 (KNN-BKZ), (K,Na)NbO3-(Bi,Na,K,Li)ZrO3 (KNN-BNKLZ), and (K,Na)NbO3-(Bi,Li)ZrO3-(KNN-BLZ) as representative ceramics with rhombohedral-orthorhombic-tetragonal (R-O-T), R-T, and enriched T phase boundaries, respectively. The KNN-BNKLZ ceramics, which have an R-T phase boundary, showed the highest piezoelectricity but the worst temperature stability. On the other hand, the KNN-BLZ ceramics, which have an enriched T-phase, were slightly worse in terms of piezoelectricity compared to the R-O-T or R-T phase boundary, but their thermal stability was the best. From analyses of an extrinsic contribution by a difference between the small signal d33 and εrPr and an intensity variation of the (002) and (200) X-ray diffraction peaks for the KNN-based ceramics, it was suggested that increasing the extrinsic contribution in the morphotropic phase boundary region improves the piezoelectricity but decreases the thermal stability.

scholarly journals Origin of high piezoelectric response of Pb(ZrxTi1−x)O3 at the morphotropic phase boundary: Role of elastic instability

2008 ◽  
Vol 92 (2) ◽  
pp. 022910 ◽  
Author(s):  
Akhilesh Kumar Singh ◽  
Sunil Kumar Mishra ◽  
Ragini ◽  
Dhananjai Pandey ◽  
Songhak Yoon ◽  
...  
Keyword(s):  
Phase Boundary ◽  
Morphotropic Phase Boundary ◽  
Piezoelectric Response ◽  
Elastic Instability
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