Complex-impedance spectra of 0.2[(Li2O)1-x-(Na2O)x]-0.8B2O3 mixed-alkali glasses

Shinya Mishina, Junichi Kawamura, Mitsuo Shimoji

研究成果: Article査読

7 被引用数 (Scopus)

抄録

Complex impedance spectra Z{star, open} (ω) of 0.2[(Li2O)1-x-(Na2O)x]-0.8(B2O3) (x=0 to 1) glasses were measured in the frequency range from 5 Hz to 500 kHz. The conductivity relaxation time τM obtained from electric modulus spectra shows remarkable mixed alkali effects as in the case of d.c. conductivity. The use of the usual CPE (constant phase element) in the complex non-linear least square fitting technique was found insufficient to express the observed impedance spectra for mixed-alkali glasses. The present data can be well represented by using the following two-parameter equation: Z{star, open}[ω]= Z[0] [1+(iωτc)n]m (0<n≦, 0<m). For mixed alkali glasses, deviations of parameters m and n from unity are much larger than those in single alkali ones. This suggests that the distribution of relaxation times in considerably enhanced in mixed alkali glasses.

本文言語English
ページ(範囲)323-329
ページ数7
ジャーナルSolid State Ionics
23
4
DOI
出版ステータスPublished - 1987 5月
外部発表はい

ASJC Scopus subject areas

  • 化学 (全般)
  • 材料科学(全般)
  • 凝縮系物理学

フィンガープリント

「Complex-impedance spectra of 0.2[(Li2O)1-x-(Na2O)x]-0.8B2O3 mixed-alkali glasses」の研究トピックを掘り下げます。これらがまとまってユニークなフィンガープリントを構成します。

引用スタイル