DETERMINATION OF ALL OF THE ELECTROELASTIC CONSTANTS OF LiNbO₃ CRYSTALS

The present work discusses the measuring method of all of the elastic, piezoelectric and dielectric constants of LiNb0₃ crystals (briefly called as LN). We have given in all 56 data of the elastic, piezoelectric and dielectric constants and some of the mechanicelectric coupling coefficients of our LN. The value of K₃₁ had been measured to be 0.038, and have recommended that the value of C₁₄^E should be determining by means of the +35°Y rotational plate, its value is 0.088×10¹¹ N/m². The two data would have an influence up the last determination of all of the elastic, piezoelectric and dielectric constants of LN.