Piezoelectric Properties and Enhancement of Moisture-Resistance of K0.5Na0.5NbO3 by Adding ZnO-Based Glass
The ZnO based glass was added to calcined K0.5Na0.5NbO3 by ball milling for 20h. The addition of 1wt.% ZnO- based glass exhibited the following piezoelectric properties (kp=36%, Qm=236, e33T/e0=464). By increasing the amount of glass powder ~5wt.%, kp was decreased to 24%. However, Qm and e33T/e0 were observed slightly decreasing. Besides, the moisture-resistance of ZnO-based glass added K0.5Na0.5NbO3 was enhanced considerably as compared to that of K0.5Na0.5NbO3.
Chazono Hirokazu, Fujihara Shinobu, Katayama Keiichi, Masumoto Hiroshi, Mizoguchi Teruyasu, Osada Minoru, Shinozaki Kazuo and Takeda Hiroaki
Y. Oba et al., "Piezoelectric Properties and Enhancement of Moisture-Resistance of K0.5Na0.5NbO3 by Adding ZnO-Based Glass", Key Engineering Materials, Vol. 485, pp. 65-68, 2011