Substituent effects on the mechanical quality factor of Pb(Mg1/3Nb2/3)O-3-PbTiO3 and Pb(Sc1/2Nb1/2)O-3-PbTiO3 ceramics

Authors
Chen, YH Uchino, K Shen, M Viehland, D
Citation
Yh. Chen et al., Substituent effects on the mechanical quality factor of Pb(Mg1/3Nb2/3)O-3-PbTiO3 and Pb(Sc1/2Nb1/2)O-3-PbTiO3 ceramics, J APPL PHYS, 90(3), 2001, pp. 1455-1458
Citations number
10
Categorie Soggetti
Apllied Physucs/Condensed Matter/Materiales Science
Journal title
JOURNAL OF APPLIED PHYSICS
ISSN journal
00218979 → ACNP
Volume
90
Issue
3
Year of publication
2001
Pages
1455 - 1458
Database
ISI
SICI code
0021-8979(20010801)90:3<1455:SEOTMQ>2.0.ZU;2-F
Abstract
The mechanical quality factor of Pb(Mg1/3Nb2/3)O-3-PbTiO3(PMN-PT) and Pb(Sc 1/2Nb1/2)O-3-PbTiO3(PSN-PT) ceramics have been investigated for composition s close to the morphotropic phase boundary. Investigations were performed f or various types of lower valent substituents on the B-site cation. These i nvestigations have shown significant differences between the modified PMN-P T and PSN-PT crystalline solutions. In PMN-PT, lower valent substitutents h ad little effect upon the mechanical quality factor; however in PSN-PT it w as found to be significantly increased. A crystal chemical approach is then used to explain these differences. (C) 2001 American Institute of Physics.