Lead magnesium niobate-lead titanate fibres by a modified sol-gel method

Lam, K.H. , Li, K. and Chan, H.L.W. (2005) Lead magnesium niobate-lead titanate fibres by a modified sol-gel method. Materials Research Bulletin, 40(11), pp. 1955-1967. (doi: 10.1016/j.materresbull.2005.05.024)

Full text not currently available from Enlighten.

Abstract

Lead magnesium niobate–lead titanate (PMN–PT) ceramic fibres with the nominal composition of 0.65Pb(Mg1/3Nb2/3)O3–0.35PbTiO3 have been fabricated by a modified sol–gel method. Due to the difficulty of dissolving the magnesium component, the mixed oxide method was used together with the traditional sol–gel method. To obtain crack-free fibres, pyrolysis was carried out at a very slow heating rate under specific atmosphere to control the organic burnout. The thermal and microstructural properties were investigated using thermogravimetric analysis, scanning electron microscopy and X-ray diffraction. The optimum sintering temperature is 1200 °C and yields a fibre with a final diameter of around 100 μm. A single PMN–PT fibre has been poled and its electrical properties were measured. The properties of the fibre are found to be better than that of a ceramic disc.

Item Type:Articles
Status:Published
Refereed:No
Glasgow Author(s) Enlighten ID:Lam, Dr Koko
Authors: Lam, K.H., Li, K., and Chan, H.L.W.
College/School:College of Science and Engineering > School of Engineering > Systems Power and Energy
Journal Name:Materials Research Bulletin
Publisher:Elsevier
ISSN:0025-5408
ISSN (Online):1873-4227

University Staff: Request a correction | Enlighten Editors: Update this record