Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
10653629 | Solid State Communications | 2005 | 5 Pages |
Abstract
Neodymium doped bismuth layer structure ferroelectrics (BLSFs) ceramics CaBi4âxNdxTi4O15 (x=0, 0.25, 0.50, 0.75) were prepared by solid-state reaction method. X-ray diffraction pattern showed that single phase was formed when x=0-0.75. The refined lattice parameters showed that a (b) axes decrease at x=0.25 and increase with more Nd3+ dopant. The effects of Nd3+ doping on the dielectric and ferroelectric properties of CaBi4Ti4O15 ceramics are studied. Nd3+ dopant decreased the Curie temperature linearly, and the dielectric loss, tan δ, as well. The remnant polarization of Nd3+ doped CaBi4Ti4O15 ceramics was increased by 80% at x=0.25, while more Nd3+ dopant decreased the remnant polarization. CaBi3.75Nd0.25Ti4O15 ceramics had the largest piezoelectric constant d33. The structure and properties of CaBi4âxNdxTi4O15 ceramics showed that Nd3+ may occupy different crystal locations when Nd3+ content x is less than 0.25 and more than 0.50.
Related Topics
Physical Sciences and Engineering
Materials Science
Materials Science (General)
Authors
Jiangtao Zeng, Yongxiang Li, Dong Wang, Qingrui Yin,