Studies of Ceramic Superconductors: Flux Flow and Chemical Doping

陶瓷超导体的研究：磁通流和化学掺杂

• 批准号: 9222919
• 负责人: Yi-Han Kao
• 金额: $ 31.26万
• 依托单位: SUNY at Buffalo
• 依托单位国家: 美国
• 项目类别: Continuing Grant
• 财政年份: 1993
• 资助国家: 美国
• 起止时间: 1993-04-15 至 1997-07-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9222919&HistoricalAwards=false
• 关键词: Studies; Ceramic; Superconductors; Flux; Flow

This proposal aims to study two important problems in ceramic high Tc superconductor (HTCS). They are the dynamics of flux flow and effects of chemical doping. Two major techniques will be used to study both problems together in a systematic way. These techniques are the direct flux-motion monitoring (DFMM) technique and the x-ray absorption fine structure (XAFS) technique. by a combination of these two techniques, the results are expected to provide information on flux dynamics and microstructures which will be useful for a clear understanding and effective control of the magnetic properties as well as critical current density of the high transition temperature superconductors. %%% This experimental study aims to connect the phenomena of flux flow/flux pinning with their microscopic causes, namely, the impurities. Both the direct flux-motion monitoring (DFMM) technique and the x-ray absorption fine structure (XAFS) technique will be used in combination for this study. It will provide a clear understanding and effective control the magnetic properties and critical current density of the ceramic high transition temperature superconductors.

本研究旨在研究陶瓷中的两个重要问题 高温超导体（HTCS）。 它们是磁通流的动力学 和化学兴奋剂的影响。 将使用两种主要技术 以系统的方式研究这两个问题。 这些 技术是直接磁通运动监测（DFMM）技术 和X射线吸收精细结构（XAFS）技术。 由 结合这两种技术，预计结果将 提供有关焊剂动力学和微观结构的信息， 有助于明确理解和有效控制 磁性能以及临界电流密度的高 转变温度超导体 %%% 本实验研究的目的是将磁通现象 流动/通量钉扎及其微观原因，即， 杂质 直接磁通运动监测（DFMM） X射线吸收精细结构（XAFS）技术 将用于本研究。 它将提供一个 明确认识和有效控制磁性能 陶瓷高过渡态的临界电流密度 高温超导体