• 主题
高级搜索  >
历史搜索 清空历史
首页> 外文会议>8th Asian Conference on Solid State Ionics: Trends in the New Millennium; Dec 15-19, 2002; Langkawi, Malaysia >POLARIZATION/ SELF- DEPOLARIZATION STUDIES ON SOME FAST Ag~+ ION CONDUCTING GLASSES
【24h】

POLARIZATION/ SELF- DEPOLARIZATION STUDIES ON SOME FAST Ag~+ ION CONDUCTING GLASSES

机译：某些快速Ag〜+离子导电玻璃的极化/自去极化研究

获取原文
获取原文并翻译 | 示例
页面导航
  • 摘要
  • 著录项
  • 相似文献
  • 相关主题

摘要

A novel technique based on the dc polarization method is being reported to study polarization/ self-depolarization phenomenon in some fast Ag~+ ion conducting glass systems viz.: 0.8[0.75AgI: 0.25AgCl]: 0.2[Ag_2O: MoO_3] & 0.7[0.75AgI: 0.25AgCl]: 0.3[Ag_2O: WO_3]. These superionic glasses were prepared recently in the present laboratory using an alternate host: " a quenched [0.75AgI: 0.25AgCl] mixed system/ solid solution" in place of the traditional host AgI. An extensive investigation on ion transport behavior of these systems has been done which appeared elsewhere in the literature. In the present study, the sample pallet, placed in between two blocking (graphite) electrodes, was initially polarized with the help of an external d. c. potential (～ 0.5V) for sufficient long time ensuring that the system attained the state of complete polarization. This resulted into a build up of a potential gradient across the two faces of the sample pallet, which can be measured instantly on removal of the external dc potential. This has been be referred to as an 'Instant Peak Potential (V_p)'. The magnitude of 'V_p' gives the quantitative information regarding the number of mobile Ag~+ ions present in the system at a given temperature. 'V_p' measurements were carried out extensively on the sample pallets of different thickness as a function of time and temperature. The log V_p - 1/T variations for these systems were found to be almost analogous to log n - 1/T plots, reported earlier.
机译：据报道，一种基于直流极化方法的新技术研究了一些快速的Ag〜+离子导电玻璃系统的极化/自去极化现象，即：0.8 [0.75AgI：0.25AgCl]：0.2 [Ag_2O：MoO_3]和0.7 [0.75AgI：0.25AgCl]：0.3 [Ag_2O：WO_3]。这些超离子玻璃最近在本实验室中使用替代宿主：“淬灭的[0.75AgI：0.25AgCl]混合系统/固溶体”代替了传统宿主AgI。已经对这些系统的离子迁移行为进行了广泛的研究，这在文献中的其他地方也有提及。在本研究中，放置在两个阻挡（石墨）电极之间的样品托盘最初是借助外部d极化的。 C。电位（〜0.5V）足够长的时间，以确保系统达到完全极化状态。结果是在样品托盘的两个面上都形成了电势梯度，可以在去除外部直流电势后立即进行测量。这被称为“瞬时峰值电位（V_p）”。 “ V_p”的大小给出有关在给定温度下系统中存在的可移动Ag〜+离子数量的定量信息。根据时间和温度，在不同厚度的样品托盘上广泛进行“ V_p”测量。发现这些系统的对数V_p-1 / T变化几乎类似于先前报道的对数n-1 / T图。

著录项

相似文献

  • 外文文献
  • 中文文献
  • 专利
获取原文

客服邮箱：kefu@zhangqiaokeyan.com

京公网安备：11010802029741号 ICP备案号：京ICP备15016152号-6 六维联合信息科技 (北京) 有限公司©版权所有

  • 客服微信

  • 服务号