Piezoelectric and pyroelectric properties of lead lanthanum zirconate titanate (PLZT) ceramics prepared by sol gel derived nano powders

Autor: A. K. Pandey, A. Govindan, A. Sharma, S. K. Gaur
Rok vydání: 2011
Předmět:
Zdroj: Indian Journal of Physics. 85:1829-1832
ISSN: 0974-9845
0019-5480
DOI: 10.1007/s12648-011-0187-3
Popis: Lanthanum modified PZT (PLZT) ceramics were prepared with nano powders obtained by the sol gel method and its piezoelectric and pyroelectric behaviour was studied. The piezoelectric properties of the sol gel derived ceramics were compared with the ones prepared by the conventional oxide route. It was found that although the figures of merit of the sol gel derived ones were slightly better (10–15% increase), because of its higher density with respect to conventional ones. The pyroelectric properties of PLZT needs special mention because of its high detectivity and low noise levels. The results are tabulated in the paper and it indicates great figures of merit.
Databáze: OpenAIRE