Internal friction and Young´s modulus of titanium-doped lead magnesium niobate

Author

Bao, P. ; Yan, F. ; Li, W. ; Dai, Y.R. ; Shen, H.M. ; Zhu, J.S. ; Chan, Helen L.W. ; Choy, Chung-Loong ; Wang, Y.N.

Author_Institution

Dept. of Phys., Nanjing Univ., China

fYear

2002

fDate

28 May-1 June 2002

Firstpage

267

Lastpage

270

Abstract

The dielectric properties, internal friction and Young´s modulus of (1-x%) Pb(Mg₁3/Nb₂3/)O₃-x%PbTiO₃ (for x=13,23,33) ceramics have been measured. A phase-transition like internal friction peak associated with Young´s modulus softening has been observed at temperature T_R-F, which can be attributed to the Relaxor to Ferroelectrics (R-F) phase transition. Therefore, the R-F phase transition can be explained in terms of the paraelectric to ferroelectric phase transition of paraelectric matrix in the materials. The softening of Young´s modulus corresponding to the appearance of polar nano-domains is also found at the temperature far above T_m.

Keywords

Young´s modulus; ferroelectric ceramics; ferroelectric transitions; internal friction; lead compounds; relaxor ferroelectrics; titanium; PMN:Ti; PbMgO3NbO3:Ti; Young´s modulus; complex perovskite; dielectric properties; ferroelectric ceramic; internal friction; paraelectric to ferroelectric phase transition; polar nanodomains; relaxor ferroelectrics; relaxor to ferroelectric phase transition; Ceramics; Dielectric measurements; Ferroelectric materials; Magnesium; Microstructure; Niobium compounds; Permittivity measurement; Physics; Relaxor ferroelectrics; Temperature;

fLanguage

English

Publisher

ieee

Conference_Titel

Applications of Ferroelectrics, 2002. ISAF 2002. Proceedings of the 13th IEEE International Symposium on

ISSN

1099-4734

Print_ISBN

0-7803-7414-2

Type

conf

DOI

10.1109/ISAF.2002.1195921

Filename

1195921