scholarly journals In-situ observation of crack growth and domain switching around vickers indentation on BaTiO3 single crystal under sustained electric field

2013 ◽  
Vol 26 (6) ◽  
pp. 772-776 ◽  
Author(s):  
Bing Jiang ◽  
Yusong Liu ◽  
Meicheng Li
Keyword(s):  
Electric Field ◽  
Single Crystal ◽  
Crack Growth ◽  
Domain Switching ◽  
In Situ Observation ◽  
Vickers Indentation

In Situ Observation of Fatigue Crack Growth and 90º Domain Switching for BaTiO3 Ferroelectric Single Crystal under Cyclic Electric Loading

2008 ◽  
Vol 33-37 ◽  
pp. 145-150
Author(s):  
Fei Fang ◽  
Fang Cheng Zhang ◽  
Wei Yang
Keyword(s):  
Fatigue Crack ◽  
Fatigue Crack Growth ◽  
Stress Field ◽  
Electric Field ◽  
Crack Growth ◽  
Domain Switching ◽  
Crack Tip ◽  
In Situ Observation ◽  
Alternating Electric Field

In-situ observation of the fatigue crack growth and 90o domain switching was carried out for BaTiO3 ferroelectric single crystals under alternating electric field. It is shown that during the electric cycling, the crack propagates continuously. Parallel lines of 90o domain boundaries can be seen and they flip at each reversal of the alternating electric field. The width of the 90o domain switching zone grows with the number of cycles and its frontal always lies ahead of the crack tip. It is suggested that the cyclic stress field induced by the repeated 90o domain switching at the crack tip, as well as the stress field caused by the electrically activated material between the electrode and the material under the electrodes contribute to the observed fatigue crack growth.

Electric field-induced crack growth and domain-structure evolution for [100]- and [101]-oriented 72%Pb(Mg1/3Nb2/3) O3–28%PbTiO3 ferroelectric single crystals

2008 ◽  
Vol 23 (12) ◽  
pp. 3387-3395 ◽  
Author(s):  
F. Fang ◽  
W. Yang ◽  
F.C. Zhang ◽  
H. Qing
Keyword(s):  
Electric Field ◽  
Crack Propagation ◽  
Single Crystal ◽  
Single Crystals ◽  
Crack Growth ◽  
Domain Structure ◽  
Boundary Structure ◽  
Structure Evolution ◽  
In Situ Observation ◽  
Oriented Single Crystal

In situ observation of the electrically induced crack growth and domain-structure evolution is carried out for [100]- and [101]-oriented 72%Pb(Mg1/3Nb2/3)O3–28% PbTiO3 (PMN–PT 72/28) ferroelectric single crystals under static (poling) and alternating electric fields. On the same poling electric field, domains are in the stable engineered domain state where four equivalent polarization variants coexist for [100]-oriented single crystal, while parallel lines representing the 71° domain boundaries appear for [101]-oriented one. Under the same cyclic electric field, the [100]-oriented single crystal shows much higher crack propagation resistance than that of a [101]-oriented crystal. Apart from the material aspects, such as crystallographic fracture anisotropy and non-180° domain boundary structure, crack boundary condition plays an important role in determining the crack propagation behavior.

Different domain switching kinetics in tetragonal PMN-PT single crystal studied by in situ observation and current analysis

2020 ◽  
Vol 40 (8) ◽  
pp. 2922-2928
Author(s):  
Xin Liu ◽  
Ye Zhao ◽  
Qingyuan Hu ◽  
Andrei D. Ushakov ◽  
Peng Luan ◽  
...  
Keyword(s):  
Single Crystal ◽  
Domain Switching ◽  
In Situ Observation ◽  
Current Analysis

scholarly journals In-situ observation of ultrafast 90° domain switching under application of an electric field in (100)/(001)-oriented tetragonal epitaxial Pb(Zr0.4Ti0.6)O3 thin films

2017 ◽  
Vol 7 (1) ◽  
Author(s):  
Yoshitaka Ehara ◽  
Shintaro Yasui ◽  
Takahiro Oikawa ◽  
Takahisa Shiraishi ◽  
Takao Shimizu ◽  
...  
Keyword(s):  
Thin Films ◽  
Electric Field ◽  
Domain Switching ◽  
In Situ Observation

Laser damage mechanism and in-situ observation of stacking fault relaxation in β-Ga2O3 single crystal by EFG method

CrystEngComm ◽  
2021 ◽  
Author(s):  
Bo Fu ◽  
Gaohang He ◽  
Wenxiang Mu ◽  
Yang Li ◽  
Boyuan Feng ◽  
...  
Keyword(s):  
Single Crystal ◽  
Light Field ◽  
Damage Mechanism ◽  
Stacking Fault ◽  
High Light ◽  
Laser Damage ◽  
In Situ Observation ◽  
Structure Destruction

We designed an original and effective method to study the laser damage mechanism of β-Ga2O3 single crystal grown by edge-defined film-fed growth (EFG). The structure destruction under high light field...

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