Even if it does not detect the change of phase and structure. But a study of the electromagnetic properties at room temperature and 1 kHz frequency shown in Figure 22 (a).
Even if phase and structure changes are not detected, the results of the electric properties at room temperature and frequency of 1 kHz are displayed as shown in Picture 22 (a).
Although there is no change in phase and structure However, the dielectric properties at room temperature and frequency 1kHz were studied at 22-a-41.<br>