Abstract
The relation between crystal distortion and Q value at microwave frequencies for Ba(Zn1/3Ta2/3)O3(BZT) and Ba(Zn1/3Ta2/3)O3-(Sr, Ba)(Ga1/2Ta1/2) O3(BSZGT) was investigated. The Q values of BZT and BSZGT increased with the increase of crystal distortion for long time sintering. The lack of Ba from the stoichiometric composition increased crystal distortion for BZT and BSZGT. But the lack of Ba did not always improve the Q values of BZT and BSZGT. The HIP treatment for BZT and BSZGT increased density and dielectric constant, but it showed a little effect on crystal distortion and the improvement of Q value.
