Download PDF by K. M. Nair, Shashank Priya: Advances in Electroceramic Materials II, Volume 221

By K. M. Nair, Shashank Priya

In past times a long time, knowing of the technological know-how and know-how powering digital fabrics has performed an important position in enjoyable social wishes by way of constructing digital units for car, telecommunications, army, and scientific functions. This quantity incorporates a choice of chosen papers from the overseas symposia on complicated Dielectric fabrics and digital units and Ferroelectrics and Multiferroics provided through the fabric technological know-how and expertise convention held in Pittsburgh in October 2009. it's a one-stop source for teachers at the most crucial concerns in advances in electroceramic materials.Content:

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20). Advances in Electroceramic Materials II · 35 Synthesis, Structural and Electrical Properties of the Na0 5 Bi 0 5ΤίΟ3-Κ0 5 Bi 0 5 Ti0 3 System Figure 5: Temperature dependence of the relative permittivity and dielectric losses of selected samples from the NBT-KBT system. The permittivity measurements were obtained at frequencies of 10 kHz, 100 kHz and 1 MHz, whereas the dielectric losses are presented at 1 MHz. The room-temperature measurements of the polarization versus electric field (Figure 6) show that the remanent polarization (P,) increases from 7 μθ/cm for KBT to 40 μθ/cm for the MPB sample and further decreases to 34 μθ/αη2 for NBT (the material had not yet reached its saturation polarization under these conditions).

M. Taylor, V. Chi, F. P. Brooks, S. Washburn and R. Superfine, Nature 389: 582 (1997). 10. G. Singh, P. Rice and R. L. Mahajan: Nanotechnology 18,475501 (2007). l l . J . Boomgaard, D. R. Terrell, R. A. J. Born and H. F. J. I. Giller, J. Mater. Sei. 9,1705 (1974). 28 ■ Advances in Electroceramic Materials II Advances in Electroceramic Materials II Edited by K. M. Nair and Shashank Priya Copyright © 2010 The American Ceramic Society SYNTHESIS, STRUCTURAL AND ELECTRICAL PROPERTIES OF THE NaojBiosTiOjKosBiosTiOa CERAMIC SYSTEM Jakob König, Mojca Otoniiar, Sreio D.

The degree of orientation, F, achieved =83% in the textured BKT-BT10 ceramic sintered at 1080°C for 100 h. The piezoelectric strain constant, da, from the resonance-antiresonance method and the normalized strain, ί/33 , from the field-induced-strain measurement of textured BKT-BT10 ceramic were 121 pC/N and 211 pm/V (at 80 kV/cm), respectively, in a direction parallel (//) to the tape stacking direction at room temperature. The depolarization temperature, ΤΛ, for textured BKT-BT10 indicated 275°C and the poling state was stable until just below the Ti.

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