Title :
Effect of nano ZnO additive on the microstructure and electrical properties of potassium-sodium niobate lead-free piezoelectric ceramics
Author :
Hayati, R. ; Feizpour, M. ; Barzegar, A.
Author_Institution :
Dept. of Mater. Sci. & Eng., Shiraz Univ., Shiraz, Iran
Abstract :
The present work concerns the effect of adding nano sintering aids on microstructure, densification and electrical properties of KNN piezoceramics. Lead free (K0.5Na0.5) NbO3 (KNN) + x mol % nano ZnO have been prepared by conventional mixed oxide method. A single phase perovskite crystal structure obtained for all compositions. Our results reveal that a small amount of nano ZnO can improve the densification and electrical properties of KNN ceramics.
Keywords :
II-VI semiconductors; densification; nanostructured materials; piezoceramics; potassium compounds; sintering; sodium compounds; wide band gap semiconductors; zinc compounds; (K0.5Na0.5)NbO3; KNN piezoceramics; ZnO; conventional mixed oxide method; densification; electrical properties; microstructure properties; nano ZnO additive; nano sintering aids; potassium-sodium niobate lead-free piezoelectric ceramics; single phase perovskite crystal structure; Additives; Ceramics; Environmentally friendly manufacturing techniques; Lead; Microstructure; Niobium compounds; Piezoelectric materials; Plasma temperature; Powders; Zinc oxide; (K0.5Na0.5) NbO3 (KNN); Lead free; Piezoelectric; nano ZnO;
Conference_Titel :
Nanotechnology, 2009. IEEE-NANO 2009. 9th IEEE Conference on
Conference_Location :
Genoa
Print_ISBN :
978-1-4244-4832-6
Electronic_ISBN :
1944-9399
