Effect of DC Poling Field on Domain Behavior in Lead-Free Piezoelectric Ceramics

Abstract:

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Poling characteristics, especially DC poling field (E) dependence of dielectric and piezoelectric properties were investigated to evaluate the domain behavior in lead-free ceramics such as alkali niobate and alkali bismuth titanate ceramics. The domain switching was confirmed by the E to realize minimum dielectric constant (εr), minimum electromechanical coupling factor (k) and maximum frequency constant (fc), because of domain clamping. On the other hand, the domain rotation occurred at the E to obtain maximum εr and minimum fc. These phenomena are observed in the lead-free ceramics as well as PZT ceramics.

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Periodical:

Edited by:

Pietro VINCENZINI, Vojislav V. MITIC, Alois LOIDL and Dino FIORANI

Pages:

34-41

DOI:

10.4028/www.scientific.net/AST.67.34

Citation:

T. Ogawa et al., "Effect of DC Poling Field on Domain Behavior in Lead-Free Piezoelectric Ceramics", Advances in Science and Technology, Vol. 67, pp. 34-41, 2010

Online since:

October 2010

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$35.00

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