TY - JOUR
T1 - Improvement in synthesis of (K0.5Na0.5)NbO3 powders by Ge4+ acceptor doping
AU - Zhao, Yajing
AU - Chen, Yan
AU - Chen, Kepi
N1 - Publisher Copyright:
© 2016, Higher Education Press and Springer-Verlag Berlin Heidelberg.
PY - 2016/12/1
Y1 - 2016/12/1
N2 - In this paper, the effects of doping with GeO2 on the synthesis temperature, phase structure and morphology of (K0.5Na0.5)NbO3 (KNN) ceramic powders were studied using XRD and SEM. The results show that KNN powders with good crystallinity and compositional homogeneity can be obtained after calcination at up to 900°C for 2 h. Introducing 0.5 mol.% GeO2 into the starting mixture improved the synthesis of the KNN powders and allowed the calcination temperature to be decreased to 800°C, which can be ascribed to the formation of the liquid phase during the synthesis.
AB - In this paper, the effects of doping with GeO2 on the synthesis temperature, phase structure and morphology of (K0.5Na0.5)NbO3 (KNN) ceramic powders were studied using XRD and SEM. The results show that KNN powders with good crystallinity and compositional homogeneity can be obtained after calcination at up to 900°C for 2 h. Introducing 0.5 mol.% GeO2 into the starting mixture improved the synthesis of the KNN powders and allowed the calcination temperature to be decreased to 800°C, which can be ascribed to the formation of the liquid phase during the synthesis.
KW - acceptor doping
KW - lead-free piezoelectrics
KW - potassium sodium niobate
KW - synthesis
UR - http://www.scopus.com/inward/record.url?scp=84995740090&partnerID=8YFLogxK
U2 - 10.1007/s11706-016-0362-8
DO - 10.1007/s11706-016-0362-8
M3 - Article
AN - SCOPUS:84995740090
SN - 2095-025X
VL - 10
SP - 422
EP - 427
JO - Frontiers of Materials Science
JF - Frontiers of Materials Science
IS - 4
ER -