Abstract
The elastic siffness constants Cn, C33, C44 and C66 of LiKSO4 have been measured in the temperature range 190 K to 300 K, by the ultrasonic pulse echo overlap method. The time dependence of the elastic constant C11 at 200 K showed that there are at least two relaxation times involved in the phase transition process. The first one is (15 ± 4) min. While the second one is (12 ± 2) h.