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)
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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 |
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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 |
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