Skip to main content

Effect of Sintering Temperature on Microstructure and Electric Properties of 0.95(K0.5Na0.5)NbO3–0.05Li(Nb0.5Sb0.5)O3with Copper Oxide Sintering Aid

Buy Article:

$51.00 plus tax (Refund Policy)

Abstract:

The 0.95(K0.5Na0.5NbO3)–0.05Li(Nb0.5Sb0.5)O3 doped with 0.8 mol% copper oxide (CuO) lead-free piezoelectric ceramics were synthesized by conventional solid-state reaction route. The introduction of CuO could significantly improve the sinterability of 0.95(K0.5Na0.5NbO3)–0.05Li(Nb0.5Sb0.5)O3 ceramics. The grain size of the specimen was considerably decreased due to the formation of a large amount of liquid phase when the sintering temperature exceeded 960°C. The piezoelectric constant (d33), planar electromechanical coupling (kp), and dielectric constant ( ) values increased with increasing relative density and grain size. The improved piezoelectric and dielectric properties of d33=207 pC/N, kp=44%, tan =0.0137, Qm=320, and =340 can be obtained for specimens sintered at 960°C for 2 h.

Document Type: Research Article

DOI: http://dx.doi.org/10.1111/j.1551-2916.2010.04353.x

Affiliations: State Key Laboratory of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China

Publication date: March 1, 2011

bsc/jace/2011/00000094/00000003/art00004
dcterms_title,dcterms_description,pub_keyword
6
5
20
40
5

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more