Results 71 to 80 of about 23,268 (183)

Explicit homogenized equations of the piezoelectricity theory in a two-dimensional domain with a very rough interface of comb-type

Vietnam Journal of Mechanics, 2013
The main purpose of this paper is to derive explicit homogenized equations of the linear piezoelectricity in two-dimensional domains separated by a very rough interface of comb-type.
Pham Chi Vinh, Do Xuan Tung
doaj   +1 more source

Impact of surface phenomena on direct bulk flexoelectric effect in finite samples

, 2015
In the framework of a continuum theory, it is shown that the direct flexoelectric response of a finite sample essentially depends on the surface polarization energy, even in the thermodynamic limit where the body size tends to infinity.
Tagantsev, A. K., Yurkov, A. S.
core   +1 more source

Origin of the anomalous piezoelectric response in wurtzite Sc$_x$Al$_{1-x}$N alloys

, 2010
The origin of the anomalous, 400% increase of the piezoelectric coefficient in Sc$_x$Al$_{1-x}$N alloys is revealed. Quantum mechanical calculations show that the effect is intrinsic.
Abrikosov, Igor A., Alling, Björn, Birch, Jens, Hultman, Lars, Höglund, Carina, Tasnádi, Ferenc, Wingqvist, Gunilla   +6 more
core   +1 more source

Challenges and opportunities in piezoelectric polymers: Effect of oriented amorphous fraction in ferroelectric semicrystalline polymers

Responsive Materials
Despite extensive research on piezoelectric polymers since the discovery of piezoelectric poly(vinylidene fluoride) (PVDF) in 1969, the fundamental physics of polymer piezoelectricity has remained elusive.
Guanchun Rui, Elshad Allahyarov, Zhiwen Zhu, Yanfei Huang, Thumawadee Wongwirat, Qin Zou, Philip L. Taylor, Lei Zhu   +7 more
doaj   +1 more source

Erratum: Hypothesis of Piezoelectricity of Inner Core As the Origin of Geomagnetism [Data Science Journal, Volume 8, 24 September 2009. S96-S101]

Data Science Journal, 2009
The following are errata for the original article entitled "Hypothesis of Piezoelectricity of Inner Core As the Origin of Geomagnetism" by Y. Hayakawa.
Y Hayakawa
doaj   +1 more source

Excellent Hole Mobility and Out–of–Plane Piezoelectricity in X–Penta–Graphene (X = Si or Ge) with Poisson’s Ratio Inversion

Nanomaterials
Recently, the application of two–dimensional (2D) piezoelectric materials has been seriously hindered because most of them possess only in–plane piezoelectricity but lack out–of–plane piezoelectricity. In this work, using first–principles calculation, by
Sitong Liu, Xiao Shang, Xizhe Liu, Xiaochun Wang, Fuchun Liu, Jun Zhang   +5 more
doaj   +1 more source

Ultrasonically-induced electrical potentials in demineralized bovine cortical bone

AIP Advances, 2018
While the low-intensity pulsed ultrasound technique has proved useful for healing of bone fractures, the ultrasound healing mechanism is not yet understood. To understand the initial physical effects of the ultrasound irradiation process on bone, we have
Shunki Mori, Taiki Makino, Daisuke Koyama, Shinji Takayanagi, Takahiko Yanagitani, Mami Matsukawa   +5 more
doaj   +1 more source

Piezoelectric Peptide and Metabolite Materials

Research, 2019
Piezoelectric materials are important for many physical and electronic devices. Although many piezoelectric ceramics exhibit good piezoelectricity, they often show poor compatibility with biological systems that limits their biomedical applications ...
Hui Yuan, Peipei Han, Kai Tao, Shuhai Liu, Ehud Gazit, Rusen Yang   +5 more
doaj   +1 more source

Influence of Uniaxial Tensile Stress on the Mechanical and Piezoelectric Properties of Short-period Ferroelectric Superlattice

Nanoscale Research Letters, 2009
Tetragonal ferroelectric/ferroelectric superlattice under uniaxial tensile stress along the c axis is investigated from first principles. We show that the calculated ideal tensile strength is 6.85 GPa and that the superlattice under the loading of ...
Wang Chunmei, Chen Changqing, Duan Yifeng, Tang Gang   +3 more
doaj   +1 more source

Piezoelectricity in chalcogenide perovskites

Nature Communications
Piezoelectric materials show potential to harvest the ubiquitous, abundant, and renewable energy associated with mechanical vibrations. However, the best performing piezoelectric materials typically contain lead which is a carcinogen.
Sk Shamim Hasan Abir, Shyam Sharma, Prince Sharma, Surya Karla, Ganesh Balasubramanian, Johnson Samuel, Nikhil Koratkar   +6 more
doaj   +1 more source