DocumentCode :
2278438
Title :
Effect of Cu and Li substitution on the piezoelectric properties of potassium sodium niobate lead-free ceramics
Author :
Li, Enzhu ; Kakemoto, Hirofumi ; Wada, Satoshi ; Tsurumi, Takaaki
Author_Institution :
Tokyo Inst. of Technol., Tokyo
fYear :
2007
fDate :
27-31 May 2007
Firstpage :
643
Lastpage :
644
Abstract :
Recently, (K, Na) NbO3 (KNN) ceramics and, based on KNN, (K,Na,Li) NbO3 ceramics, (K,Na,Li)(Nb,Ta,Sb)O3 (LF4) perovskite ceramics were reported to show excellent piezoelectric properties and has been regarded as candidates of lead-free piezoelectric materials. In this study, the effect of CuO addition to Li-modified KNN were investigated. The CuO-doping changed it to "hard" piezoelectric ceramics but the Qm can be improved to above 400 for Li-modified KNN with a high piezoelectric constant d33 of 100 pC/N.
Keywords :
doping; piezoceramics; piezoelectricity; potassium compounds; sodium compounds; CuO-doping; KNbO3-NaNbO3; perovskite ceramics; piezoelectric ceramics; piezoelectric constant; piezoelectric properties; potassium sodium niobate lead-free ceramics; Bioceramics; Biomedical engineering; Ceramics; Dielectrics; Electric variables measurement; Environmentally friendly manufacturing techniques; Lattices; Niobium compounds; Resonance; Temperature;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Applications of Ferroelectrics, 2007. ISAF 2007. Sixteenth IEEE International Symposium on
Conference_Location :
Nara
ISSN :
1099-4734
Print_ISBN :
978-1-4244-1334-8
Electronic_ISBN :
1099-4734
Type :
conf
DOI :
10.1109/ISAF.2007.4393355
Filename :
4393355
Link To Document :
https://search.ricest.ac.ir/dl/search/defaultta.aspx?DTC=49&DC=2278438
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