scholarly journals Electric-field-dependent phase volume fractions and enhanced piezoelectricity near the polymorphic phase boundary of (K0.5Na0.5)1−xLixNbO3textured ceramics

2011 ◽  
Vol 83 (22) ◽  
Author(s):  
Wenwei Ge ◽  
Jiefang Li ◽  
D. Viehland ◽  
Yunfei Chang ◽  
Gary L. Messing
Keyword(s):  
Electric Field ◽  
Phase Boundary ◽  
Phase Volume ◽  
Volume Fractions ◽  
Field Dependent

DC BIAS ELECTRIC FIELD DEPENDENT PIEZOELECTRICITY FOR [001] POLED Pb(In1/2Nb1/2)O3–Pb(Mg1/3Nb2/3)O3–PbTiO3 CRYSTALS

2011 ◽  
Vol 01 (03) ◽  
pp. 303-308 ◽  
Author(s):  
FEI LI ◽  
SHUJUN ZHANG ◽  
ZHUO XU ◽  
ZHENRONG LI ◽  
XIAOYONG WEI
Keyword(s):  
Phase Transition ◽  
Electric Field ◽  
Phase Boundary ◽  
Bias Field ◽  
The Other ◽  
Piezoelectric Response ◽  
Bias Electric Field ◽  
Field Dependent ◽  
Dc Bias ◽  
Transition Field

The longitudinal piezoelectric response of [001] poled rhombohedral and orthorhombic Pb(In1/2Nb1/2)O3–Pb(Mg1/3Nb2/3)O3–PbTiO3 crystals were investigated with respect to DC bias electric field, being in the range of -2~15 kV/cm. For rhombohedral crystals with compositions far away from morphotropic phase boundary (MPB), the piezoelectric response generally decreased with increasing positive DC bias field, while for crystals with MPB compositions, the piezoelectric response firstly decreased and then increased as function of DC bias. The piezoelectric response was found to decrease drastically when DC bias larger than phase transition field. On the other hand, the piezoelectric response was slightly enhanced for all the crystals as function of negative DC bias prior to the depolarization. To explain the obtained results, the field dependent piezoelectric coefficients in domain engineered crystals were analyzed based on thermodynamic approach.

Method to Achieve the Morphotropic Phase Boundary in HfxZr1−xO2 by Electric Field Cycling for DRAM Cell Capacitor Applications

2021 ◽  
Vol 42 (4) ◽  
pp. 517-520
Author(s):  
Seongho Kim ◽  
Seung Hwan Lee ◽  
Min Ju Kim ◽  
Wan Sik Hwang ◽  
Hyun Soo Jin ◽  
...  
Keyword(s):  
Electric Field ◽  
Phase Boundary ◽  
Morphotropic Phase Boundary ◽  
Field Cycling

Magnetic and electric field dependent anisotropic magnetoelectric multiferroicity in SmMn3Cr4O12

2021 ◽  
Vol 104 (5) ◽  
Author(s):  
Guangxiu Liu ◽  
Zhehong Liu ◽  
Yisheng Chai ◽  
Long Zhou ◽  
Xudong Shen ◽  
...  
Keyword(s):  
Electric Field ◽  
Field Dependent

Temperature and electric field dependent mobility in poly(3-hexylthiophene) diodes

2010 ◽  
Vol 108 (1) ◽  
pp. 014512 ◽  
Author(s):  
Michele Giulianini ◽  
Eric R. Waclawik ◽  
John M. Bell ◽  
Nunzio Motta
Keyword(s):  
Electric Field ◽  
Field Dependent

Electric-Field-Dependent Tilt (Cone) Angle in a Chiral Smectic C Liquid Crystal Showing Electroclinic Effect in the Smectic A Phase

1991 ◽  
Vol 30 (Part 2, No. 4A) ◽  
pp. L612-L615 ◽  
Author(s):  
Ying-Bao Yang ◽  
Akihiro Mochizuki ◽  
Naoto Nakamura ◽  
Shunsuke Kobayashi
Keyword(s):  
Liquid Crystal ◽  
Electric Field ◽  
Cone Angle ◽  
Smectic A ◽  
Smectic C ◽  
Field Dependent ◽  
Smectic A Phase

Electric field dependent photodecomposition of a-As2Se3

1973 ◽  
Vol 13 (10) ◽  
pp. 1721-1724 ◽  
Author(s):  
W.R. Salaneck ◽  
J.S. Berkes
Keyword(s):  
Electric Field ◽  
Field Dependent

scholarly journals A fracture mechanics model for a crack problem of functionally graded materials with stochastic mechanical properties

2012 ◽  
Vol 468 (2146) ◽  
pp. 2939-2961 ◽  
Author(s):  
Licheng Guo ◽  
Zhihai Wang ◽  
Naotake Noda
Keyword(s):  
Mechanical Properties ◽  
Fracture Mechanics ◽  
Functionally Graded Materials ◽  
Small Sample ◽  
Functionally Graded ◽  
Phase Volume ◽  
Graded Materials ◽  
Volume Fractions ◽  
Mechanics Model ◽  
Crack Problems

This study aimed to develop a method to build a ‘bridge’ between the macro fracture mechanics model and stochastic micromechanics-based properties so that the macro fracture mechanics model can be expanded to the fracture mechanics problem of functionally graded materials (FGMs) with stochastic mechanical properties. An analytical fracture mechanics model is developed to predict the stress intensity factors (SIFs) in FGMs with stochastic uncertainties in phase volume fractions. Considering the stochastic description of the phase volume fractions, a micromechanics-based method is developed to derive the explicit probabilistic characteristics of the effective properties of the FGMs so that the stochastic mechanical properties can be combined with the macro fracture mechanics model. A thought for choosing the samples efficiently is proposed so that the stable probabilistic characteristic of SIFs can be obtained with a very small sample size. The probability density function of SIFs can be determined by developing a histogram from the generated samples. The present method may provide a thought to establish an analytical model for the crack problems of FGMs with stochastic properties.

Electric field dependent photoluminescence studies of nanoparticle sensitized photorefractive polymers

2008 ◽  
Vol 103 (9) ◽  
pp. 093702 ◽  
Author(s):  
F. Aslam ◽  
D. M. Graham ◽  
D. J. Binks ◽  
P. Dawson ◽  
N. Pickett ◽  
...  
Keyword(s):  
Electric Field ◽  
Photorefractive Polymers ◽  
Field Dependent ◽  
Photoluminescence Studies
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