Structural and piezoelectric properties of rare earth doped PbTiO3 ceramics

• Type: Article in International Scientific Journal
• Date: 2002

Authors

Dimitriu, E (Author) Other; Boerasu, I (Author) Other; Pereira, M (Author) Other; Gomes, MJM (Author) Other; Tanasoiu, C (Author) Other

Journal

Title: Ferroelectrics

Vol. 273

Pages: 2645-2650

ISSN: 0015-0193

Publisher: Taylor & Francis

Indexing

ISI Web of Knowledge - 3 Citations

Scopus - 3 Citations

Other information

Authenticus ID: P-000-R5A

DOI: 10.1080/00150190211778

Abstract (EN): Structural and piezoelectric properties of PbTiO3 (PT) ceramics materials doped with different rare earth elements were investigated. The basic chemical formula was Pb(0.88)Ln(0.08)Ti(0.98)Mn(0.02)O(3), where Ln stands for rare earth element (Ce, Pr, Gd, Nd). The powders were prepared by conventional ceramic method. All samples showed a tetragonal perovskite structure at room temperature. After sintering, bulk materials with high density were achieved for all compositions. Followed by XRD, the cell evolution and the structural anisotropy depend on the lanthanide ionic radius. The crystallite size was estimated from XRD measurements. Piezoelectric measurements (d(33) and k(p)) were performed using resonance - antiresonance frequencies. Ce-doped PT showed the highest d(33) coefficient (similar to39pC/N), while for the other doped materials d(33) was only of the order 30 pC/N.

Language: English

Type (Professor's evaluation): Scientific

No. of pages: 6