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

fYear

2009

fDate

26-30 July 2009

Firstpage

273

Lastpage

276

Abstract

The present work concerns the effect of adding nano sintering aids on microstructure, densification and electrical properties of KNN piezoceramics. Lead free (K_0.5Na_0.5) 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; (K_0.5Na_0.5)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;

fLanguage

English

Publisher

ieee

Conference_Titel

Nanotechnology, 2009. IEEE-NANO 2009. 9th IEEE Conference on

Conference_Location

Genoa

ISSN

1944-9399

Print_ISBN

978-1-4244-4832-6

Electronic_ISBN

1944-9399

Type

conf

Filename

5394611