کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1474062 | 991074 | 2012 | 6 صفحه PDF | دانلود رایگان |

A new noniterative method, for determining the dielectric, piezoelectric and elastic constants, in complex form, for piezoceramic materials, in the radial mode, was proposed.This method uses the standard procedure to determine the elastic compliance and Poisson factor and the measurement of admittance at two frequencies to calculate the dielectric and piezoelectric constants, by solving a system of two equations.The accuracy of the new method was determined for materials with different planar coupling coefficients (kp = 2.5–57%) and mechanical quality factors (Qm = 20–3000). This method proved to be very accurate for all materials especially for those with large coupling factors. The accuracy of standard method was also evaluated for the same materials.
Journal: Journal of the European Ceramic Society - Volume 32, Issue 5, May 2012, Pages 1099–1104