To date, there is no report in the literature regarding the full set of material constants of single crystals with 3m symmetries using less than 5 samples. Multiple samples make the data self-consistency difficult due to sample to sample variations, which is severe in ferroelectric materials because the poling depends strongly on the sample geometry. To eliminate errors caused by property variation from sample to sample, a combined ultrasonic and inverse impedance spectroscopy characterization method has been developed, which only needs one small sample to get all constants. The method has been used to determine full matrix material constants of c poled Mn doped 0.24Pb(In1/2Nb1/2)O3-0.46Pb(Mg1/3Nb2/3)O3-0.30PbTiO3 single crystals. The validity of this method has been verified by comparing the results with those determined by the traditional resonance method using 5 different geometry samples, and the method was proved stable with input data variation within ±10%.
All Science Journal Classification (ASJC) codes
- Physics and Astronomy(all)