A discernible dielectric aging effect in the undoped, N2-H2-annealed lead magnesium niobate-lead titanate ceramic

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review

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Original languageEnglish
Pages (from-to)1889-1892
Journal / PublicationJournal of the American Ceramic Society
Volume80
Issue number7
Publication statusPublished - Jul 1997

Abstract

It is well known that the undoped Pb(Mg1/3Nb 2/3)O3-PbTiO3 ceramics, prepared through conventional ceramic processing, present no evident aging effect. In this paper, however, a discernible aging phenomenon was observed in an undoped, N2-H2-annealed ceramic. When this sample was later annealed again in air, this effect became negligible again just like that of a normally prepared PMN-PT ceramic. The valence states of Ti ions, which may be changeable in different annealing atmospheres, were assumed to be responsible for the different degrees of aging.

Citation Format(s)

A discernible dielectric aging effect in the undoped, N2-H2-annealed lead magnesium niobate-lead titanate ceramic. / Wang, Yu; Chan, Yan Cheong; Gui, Zhi Lun; Li, Long Tu; Straw, Andrew.

In: Journal of the American Ceramic Society, Vol. 80, No. 7, 07.1997, p. 1889-1892.

Research output: Journal Publications and Reviews (RGC: 21, 22, 62)21_Publication in refereed journalpeer-review