scholarly journals Influence of composition on the unipolar electric fatigue of Ba(Zr0.2Ti0.8)O3-(Ba0.7Ca0.3)TiO3lead-free piezoceramics

2017 ◽  
Vol 100 (10) ◽  
pp. 4699-4709 ◽  
Author(s):  
Virginia Rojas ◽  
Jurij Koruza ◽  
Eric A. Patterson ◽  
Matias Acosta ◽  
Xijie Jiang ◽  
...  
Keyword(s):  
Electric Fatigue

Electric Fatigue in Metal/Ferroelectric Polymer/SiO2/p-Si Capacitors

2013 ◽  
Vol 706-708 ◽  
pp. 103-107
Author(s):  
Jing Hang Hu ◽  
Xue Jian Yan ◽  
Guo Dong Zhu
Keyword(s):  
Nonvolatile Memory ◽  
Memory Devices ◽  
Electrical Stability ◽  
Ferroelectric Polymer ◽  
Nonvolatile Memory Devices ◽  
Electric Fatigue ◽  
Fatigue Endurance

In recent years ferroelectric polymer-based nonvolatile memory devices have attracted much attention due to their flexibility, transparency and ease of production. However, their electrical stability is seldom studied. In this letter we report the observation of electric fatigue in metal/ferroelectric polymer/SiO2/p-Si capacitor memories, which is compared with the electric fatigue obtained from metal/ferroelectric polymer/p-Si capacitors. Our experiments indicate that the existence of SiO2 layer has greatly improved the fatigue endurance in metal/ferroelectric polymer/SiO2/p-Si capacitors. We also discuss the possible mechanism causing this improved fatigue endurance.

Fully Reversed Electric Fatigue Behavior of a Piezoelectric Composite Actuator

2008 ◽  
Author(s):  
Sung-Choong Woo ◽  
Nam Seo Goo
Keyword(s):  
Fatigue Damage ◽  
Fatigue Behavior ◽  
Damage Mechanism ◽  
Ceramic Layer ◽  
Piezoelectric Composite ◽  
Transgranular Fracture ◽  
Intergranular Cracking ◽  
Composite Actuator ◽  
Electric Fatigue ◽  
Pzt Ceramic

The aim of this study is to investigate fully reversed electric fatigue behavior of a piezoelectric composite actuator (PCA). For that purpose, fatigue tests with different loading conditions have been conducted and the performance degradation has been monitored. During a preset number of loading cycles, non-destructive acoustic emission (AE) tests were used for monitoring the damage evolution in real time. The displacement-cycle curves were obtained in fully reversed cyclic bending loading. The microstructures and fracture surfaces of PCA were examined to reveal their fatigue damage mechanism. The results indicated that the AE technique was applicable to fatigue damage assessment in the piezoelectric composite actuator. It was shown that the initial damage mechanism of PCAs under fully reversed electric cyclic loading originated from the transgranular fracture in the PZT ceramic layer; with increasing cycles, local intergranular cracking initiated and the either developed onto the surface of the PZT ceramic layer or propagated into the internal layer, which were some different depending on the drive frequencies and the lay-up sequence of the PCA.

Composition Dependent Fatigue in Antiferroelectric PZST Ceramics Induced by Bipolar Electric Cycling

2005 ◽  
Vol 475-479 ◽  
pp. 1193-1196
Author(s):  
Long Jie Zhou ◽  
Georg Rixecker ◽  
André Zimmermann ◽  
Fritz Aldinger
Keyword(s):  
Phase Transition ◽  
Hysteresis Loop ◽  
Fatigue Resistance ◽  
Lead Zirconate Titanate ◽  
Hysteresis Loops ◽  
Lead Zirconate ◽  
Ferroelectric Ceramics ◽  
Fatigue Effect ◽  
Zirconate Titanate ◽  
Electric Fatigue

Bipolar electric fatigue in antiferroelectrics of the lead zirconate titanate stannate ceramics family was investigated. Variations in strain hysteresis loops and damages in microstructure of the materials due to the electric cycling were analyzed. The materials showed symmetric or asymmetric suppression of strain hysteresis loop, normal or diffuse AFE-FE phase transition and intact or damaged microstructure after 5×10-7 cycles, indicating a strong composition dependent fatigue effect and the corresponding mechanism. In general, the antiferroelectric materials exhibited much higher fatigue resistance than ferroelectric ceramics reported previously.

Electric fatigue of ceramic-polymer composite film under cyclic electric field

2008 ◽  
Vol 111 (2) ◽  
pp. 1105-1109 ◽  
Author(s):  
F. Fang ◽  
W. Yang ◽  
M. Z. Zhang ◽  
Z. Wang
Keyword(s):  
Electric Field ◽  
Composite Film ◽  
Polymer Composite ◽  
Polymer Composite Film ◽  
Electric Fatigue

Domain disruption and defect accumulation during unipolar electric fatigue in a BZT-BCT ceramic

2017 ◽  
Vol 111 (25) ◽  
pp. 252902 ◽  
Author(s):  
Zhongming Fan ◽  
Chao Zhou ◽  
Xiaobing Ren ◽  
Xiaoli Tan
Keyword(s):  
Defect Accumulation ◽  
Electric Fatigue
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