Skip to main content

Piezoelectric and Ferroelectric Properties of Li-Doped (Bi0.5Na0.5)TiO3–(Bi0.5K0.5)TiO3–BaTiO3 Lead-Free Piezoelectric Ceramics

Buy Article:

$51.00 plus tax (Refund Policy)


The piezoelectric and ferroelectric properties of 0.852[Bi0.5(Na(1−x)Lix)0.5]TiO3–0.110(Bi0.5K0.5)TiO3–0.038BaTiO3 (x=0, 0.02, 0.05, 0.10, 0.15, and 0.30, abbreviated as BNKLBTx) lead-free piezoelectric ceramics were prepared by conventional ceramic processing. X-ray diffraction on the samples revealed that Li+ ions diffused into the Bi0.5Na0.5TiO3 lattices (A-site) and formed a solid solution with a single perovskite structure. All the samples could be sintered at 1160°–1180°C, with the density being on the order of >95% of the theoretical. The ceramics with x=0.10 exhibited the highest properties, with the piezoelectric coefficient being on the order of d33=235 pC/N, while the electromechanical coupling factors were found to be kp=0.30 and kt=0.45, respectively. The dielectric, pyroelectric, electromechanical, and ferroelectric behaviors were investigated as a function of temperature. It was found that the depolarization temperature Td showed a strong dependence on the content of Li+ addition, shifting to a lower temperature with increasing Li+ dopant.

Document Type: Research Article


Affiliations: 1: Materials Research Institute, Pennsylvania State University, University Park, Pennsylvania 16802 2: The State Key Laboratory of New Ceramics and Fine Processing, Department of Materials Science and Engineering, Tsinghua University, Beijing 100084, China

Publication date: April 1, 2010

Access Key

Free Content
Free content
New Content
New content
Open Access Content
Open access content
Partial Open Access Content
Partial Open access content
Subscribed Content
Subscribed content
Free Trial Content
Free trial content
Cookie Policy
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