Title of article :
Cerium-modified Aurivillius-type sodium lanthanum bismuth titanate with enhanced piezoactivities
Author/Authors :
Wang، نويسنده , , Chun-Ming and Zhao، نويسنده , , Liang and Wang، نويسنده , , Jinfeng and Zheng، نويسنده , , Li-Mei and Du، نويسنده , , Juan and Zhao، نويسنده , , Minglei and Wang، نويسنده , , Chun-Lei، نويسنده ,
Issue Information :
روزنامه با شماره پیاپی سال 2009
Abstract :
The electrical, piezoelectric and dielectric properties of cerium-modified Aurivillius-type sodium lanthanum bismuth titanate (Na0.5La0.5Bi4Ti4O15, NLBT) ceramics were investigated. It was found the piezoelectric activities of NLBT ceramics were significantly improved by cerium modification. The piezoelectric coefficient d33 and Curie temperature Tc for the 0.50 wt.% cerium-modified NLBT were found to be 29 pC/N and 573 °C, respectively. The reasons for piezoelectric activities improvement by cerium modification were given. A small dielectric abnormity was observed in NLBT ceramics, which can be suppressed by cerium modification.
Keywords :
Ferroelectrics , Piezoelectric materials
Journal title :
MATERIALS SCIENCE & ENGINEERING: B
Journal title :
MATERIALS SCIENCE & ENGINEERING: B
