Results 201 to 210 of about 3,184 (248)

Dielectric properties of the ferroelectric ceramics

Journal of Physics D: Applied Physics, 1998
The temperature and frequency dependences of the permittivity , the dielectric loss factor and the resistance R of the ceramic Ti in the interval 100-800C were studied. A ferroelectric phase transition at temperature C was observed. Hysteresis loops typical for ceramic ferroelectrics were observed. Relaxation maxima of the dielectric loss factor in the
S P Yordanov, I Ivanov, Ch P Carapanov
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Thermal Conduction in Ferroelectric Ceramics

Journal of the Physical Society of Japan, 1960
Apparatuses were constructed and measurements were made on the thermal conductivity of insulating crystals over the temperature ranges from -200°C to 600°C. For the lower temperature range, the absolute measurement was used, while for the higher one, the comparative method was adopted.
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Transparent Ferroelectric Glass-Ceramics

Ferroelectrics, 2004
In recent years, there has been a resurgence of interest in transparent ferroelectric glass-ceramics (TFGCs), which are a special class of glass-ceramic composites that combine the low cost of fabrication and forming of transparent glass with the superior nonlinear optical and electro-optical properties of ferroelectric crystals.
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Ferroelectric ceramics research in china

Ferroelectrics, 1981
Abstract The activities of ferroelectric ceramics research in China are introduced. Besides the conventional barium titanate and lead zirconate titanate ceramics, the induced phase transition in PZT, the (Ba1-XSrx)2NaNb5O15,(Na1-XLiX)NbO3 system, the hot forging of Bi4(PbXSr1-X)Ti4O15, the mixed oxide system of the low sintering temperature are ...
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Piezoelectric effects in ferroelectric ceramics

IEEE Spectrum, 1970
Ferroelectric ceramics exhibit piezoelectric effects and optical birefringence that are electrically controllable. Consequently, these ceramics are applicable to a wide variety of devices. An article in the February issue has already described electrically actuated light valves and electrically controlled optical filters. The present article deals with
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Ferroelectric ceramics and glass ceramics for photocatalysis

2022
Gurpreet Singh, Moolchand Sharma, Chris Bowen, Rahul Vaish   +3 more
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Phenomenological Theory of Ferroelectric Ceramics

The Journal of the Acoustical Society of America, 1953
A ferroelectric ceramic represents in its virgin state, mildly idealized, a three-dimensionally isotropic continuum; in the polarized state, however, a two-dimensionally isotropic one. A general conservative medium of the latter type has ten independent adiabatic elastodielectric parameters.
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Domain structure of ferroelectric ceramics

Ceramics International, 2000
Abstract PZT ceramics were statically and dynamically evaluated to examine the relationship between domain structures and electrical properties. We investigated the domain structures of tetragonal, M.P.B. and rhombohedral PZT ceramics at various poling fields to measure the poling field dependence of the crystal orientations and electrical properties
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Ferroelectric ceramic memory devices

1964 International Electron Devices Meeting, 1964
This paper discusses the information storage characteristics of an improved lead zirconate-lead titanate ferroelectric ceramic composition. The memory elements discussed are ceramic disc resonators operated in the radial extensional mode and utilizing small-signal, nondestructive readout of the remanent polarization state.
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Failure studies of ferroelectric ceramics

2014
Temperature dependence of the bending strength, together with the elastic compliance, mechanical loss, and spontaneous strain of ferroelectric PZT-841 and PZT-4 ceramics was studied in the temperature range from room temperature to the Curie point (272 °C).
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