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The Variation with Temperature of the Piezoelectric Coefficients of Quartz [PDF]

open access: bronzeProceedings of the Physical Society. Section B, 1950
The equivalent electrical circuits of three bars in longitudinal vibration were measured at approximately 25, 52.5 and 80° C In this range of temperature the temperature coefficients of d11 and d14 are respectively -230 and +1360 parts/million/° C, and there is no evidence to support Cady's suggestion that d11 passes through a maximum near room ...
A.C. Lynch
openaire   +3 more sources

Enhancing piezoelectric coefficient and thermal stability in lead-free piezoceramics: insights at the atomic-scale [PDF]

open access: yesNature Communications
Given the highly temperature-sensitive nature of the polymorphic phase boundaries, attaining excellent piezoelectric coefficient with superior temperature stability in lead-free piezoceramics via direct compositional design remains a formidable challenge.
Jinzhu Zou   +7 more
doaj   +2 more sources

Numerical Simulation Study on the Influence of MWCNT and Genipin Crosslinking on the Actuation Performance of Artificial Muscles [PDF]

open access: yesBiomimetics
To enhance the actuation performance of artificial muscles, a thermo-piezoelectric coupled model was developed based on the inverse piezoelectric effect of piezoelectric bimorphs.
Zhen Li   +7 more
doaj   +2 more sources

First-principles study of (BiScO3){1-x}-(PbTiO3){x} piezoelectric alloys

open access: yesJournal of Applied Physics, 2003
We report a first-principles study of a class of (BiScO3)_{1-x}-(PbTiO3)_x (BS-PT) alloys recently proposed by Eitel et al. as promising materials for piezoelectric actuator applications.
A.M. George   +27 more
core   +2 more sources

The measurement of piezoelectric coefficient for PP cellular electret and the improvement of its piezoelectricity

open access: hybridActa Physica Sinica, 2005
In this paper, mechanical and dielectric parameters of virgin PP cellular film(t ype PQ50) were analyzed by dielectric resonance spectroscopy, and piezoelectric d33 coefficient of 18pC/N was measured. Up to 367pC/N of piezoelectric d33 coefficient for PP cellular electret was performed by means of pr essure-expansion techniques under the reasonable ...
null Zhang Peng-Feng   +3 more
openaire   +2 more sources

Michelson interferometer for the piezoelectric coefficient measurements [PDF]

open access: yesSongklanakarin Journal of Science and Technology (SJST), 2002
The present work has described the Michelson interferometer which is capable of measuring the vibrational amplitudes in a sub-angstrom range. In the system, a He-Ne laser is used as a monochromatic source of light and a photodiode as a detector to ...
Muensit, S., Kheanumkeaw, P.
doaj   +1 more source

Development of microstructures for the formation of metamaterial properties of piezoelectric elements [PDF]

open access: yesВестник Самарского университета: Аэрокосмическая техника, технологии и машиностроение, 2023
Microcells were designed for subsequent modeling of piezoelectric and optical elements on their basis. The development of piezoelectric and optical elements from microcells was carried out and models were prepared for 3D printing.
V. S. But, A. A. Kobelev, S. V. Karpeev
doaj   +1 more source

Analysis of the Piezoelectric Properties of Aligned Multi-Walled Carbon Nanotubes

open access: yesNanomaterials, 2021
Recent studies reveal that carbon nanostructures show anomalous piezoelectric properties when the central symmetry of their structure is violated. Particular focus is given to carbon nanotubes (CNTs) with initial significant curvature of the graphene ...
Marina V. Il’ina   +5 more
doaj   +1 more source

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