Results 241 to 250 of about 27,906 (302)

Microstructure, dielectric and ferroelectric properties of CaCu3-xZnxTi4-xCexO12 ceramics prepared via semi-wet route

open access: diamond
Anuj Kumar Gond   +10 more
openalex   +2 more sources

Ferroelectric glass-ceramics

MRS Bulletin, 2017
Abstract
Manuel Pedro Fernandes Graça   +1 more
openaire   +1 more source

Coulomb Microexplosions of Ferroelectric Ceramics

Physical Review Letters, 2008
Energetic neutral and extreme ultraviolet emission initiated by the dense plasma propagation along a ferroelectric surface has been found. It was shown that the emission of neutrals is characterized by a large divergence and velocities up to 7 x 10(7) cm/s.
D, Yarmolich   +3 more
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Development of Tunable Ferroelectric Ceramic Capacitors

IEEE Transactions on Ultrasonics, Ferroelectrics, and Frequency Control, 2023
Ferroelectric perovskite ceramics with a high dielectric constant, low loss, high tunability, and high electric breakdown are ideal for nonlinear transmission lines (NLTLs) to generate radio frequency (RF) signals at high-power levels. To achieve the required properties, a comprehensive study of the material phase transitions and the optimal ratio ...
Rangel G. Aredes   +7 more
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MECHANICAL PROPERTIES OF FERROELECTRIC CERAMIC NANOCOMPOSITES

International Journal of Nanoscience, 2005
The micro- and nano-indentation techniques and compression tests were employed to determine the mechanical properties of PZT based composites dispersed with Al 2 O 3 nano-particles for comparison. Compared with the reduced modulus, the nano-hardness, which exhibited indentation size effect (ISE), seemed to be more sensitive to the indentation depth ...
Wang, XX, Kwok, KW, Lee, KL, Kah Soh, AK
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Fracture of ferroelectric ceramics

Ferroelectrics, 1983
Abstract This paper surveys the temperature, microstructural and environmental variations of the fracture properties of ferroelectric ceramics. Earlier work shows that fracture toughness decreases on heating through the Curie temperature. There is also anomalous behavior in the strength at small crack sizes, indicative of a grain size effect.
R. F. Cook   +3 more
openaire   +1 more source

Ceramics–Boron Carbide-Ferroelectrics

2021
This chapter brings together various studies on materials that happen to be ceramics. This includes Boron Carbide, (C11B) CBC or B4C, where we seek alloys or other changes to make it ductile, The BaTiO3 ferroelectric where we examined 90 and 180 degree domain wall boundaries, and Silica glass Applications to BaZrO3 electrolytes are
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Domain switching in polycrystalline ferroelectric ceramics

Nature Materials, 2005
Ferroelectric ceramics are widely used as sensors and actuators for their electro-mechanical properties, and in electronic applications for their dielectric properties. Domain switching--the phenomenon wherein the ferroelectric material changes from one spontaneously polarized state to another under electrical or mechanical loads--is an important ...
Li, J. Y.   +3 more
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Ferroelectric zirconate ceramics

1949 Conference on Electrical Insulation, 1949
A new class of ferroelectric ceramics was revealed in a study of mixtures of lead zirconate and up to 40 mol percent barium zirconate. These compositions were prepared from pure zirconium oxide, lead monoxide and barium carbonate mixed in the desired stoichiometric proportions and calcined in covered platinum crucibles at 1050°C.
openaire   +1 more source

Thermodynamic Theory of Ferroelectric Ceramics

Physical Review, 1957
A review of theories of ferroelectricity and of experimental data on ferroelectric ceramics leads to the conclusion that an analytic theory of such ceramics on microscopic basis does not seem feasible. A thermodynamic continuum theory is developed here, which is based on the postulated isomorphism, relevant to small signals only, between a polarized ...
openaire   +1 more source

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