中华医学超声杂志

应用化学 ›› 1998, Vol. 0 ›› Issue (1): 65-67.

• 研究论文 • 上一篇    下一篇

尖晶石对β/β″-Al2O3膜相组成和离子导电性的影响

温兆银, 林祖纕, 江东亮   

  1. 中国科学院上海硅酸盐研究所 上海 200050
  • 收稿日期:1997-05-26 修回日期:1997-09-15 出版日期:1998-02-10 发布日期:1998-02-10
  • 基金资助:
    国家自然科学基金

Influences of Spinel on Phase Composition and Ionic Conduction Property of Naβ/β″-Al2O3 Film

Wen Zhaoyin, Lin Zuxiang, Jiang Dongliang   

  1. Shanghai Institute of Ceramics, Chinese Academy of Sciences, Shanghai 200050
  • Received:1997-05-26 Revised:1997-09-15 Published:1998-02-10 Online:1998-02-10

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摘要： 以Naβ/β″-Al2O3为固体电解质的C2. SO2, N2等气体传感器的研究已有很多报道[1~4],多采用的是β-Al2O3结构的电解质.β-Al2O3和β″-Al2O3的结构具有一定的相似性,伯后者具有亘高的迁移离子浓度和更开放的晶体结构,表现出更好的离子导电性[5].

关键词: Naβ/β″-Al2O3, 膜, 复合物, 尖晶石, 离子导电

Abstract: Sodium β/β″-Al2O3 films were prepared by the reaction of spinel-α-Al2O3 compo-site substrate with Li2O and Na2O vapour.The influnences of MgO added to the substrateson the phase composition and electrical conduction property of the films were investigated.The results showed that the addition of MgO to the substrate in weight ≤1% ~2% could en-hance the β″-Al2O3 phase content and there fore improve the ionic conductivity of the film.

Key words: Naβ/β″-Al2O3, film, composite, spinel, ionic conductivity

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