The influence of direct current bias on the initial aging of a doped lead magnesium niobate ceramic

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Original languageEnglish
Pages (from-to)675-679
Journal / PublicationJournal of Materials Research
Issue number3
Publication statusPublished - Mar 1998


The initial dielectric aging behaviors of a Mg and Mn doped lead magnesium niobate ceramic were investigated over a wide range of direct current (dc) bias. Both the dielectric constant-log(time) and the loss tangent-log(time) were regressed in terms of a linear relationship. The dc bias is found to have a strong influence on the dielectric parameters at the start of aging and to suppress the aging of dielectric constant and loss tangent. The frequency dependence of the dielectric aging is also evidently affected by the dc bias.

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