超导复合材料与磁体结构低温多场环境下耦合性能的实验表征与检测技术

项目名称： 超导复合材料与磁体结构低温多场环境下耦合性能的实验表征与检测技术

项目编号： No.11302225

项目类型： 青年科学基金项目

立项/批准年度： 2014

项目学科： 数理科学和化学

项目作者： 关明智

作者单位： 中国科学院近代物理研究所

项目金额： 30万元

中文摘要： 超导材料由于迈斯纳效应、零电阻等优越特性在诸多工程领域有着极为重要的应用。超导材料与结构的工作状态往往是处于低温、电磁等共存的极端环境下，表现出多场相互耦合特征。高电流产生的强电磁力或机械外力将导致超导材料和结构的物性参数变化甚至超导态的丧失，严重影响到其安全运作。围绕超导材料与磁体结构在低温多场环境下所关联的力学性能表征等基础问题，本项目将开展与此相关的实验表征及其多场耦合非线性行为的实验研究。主要内容包括：不同变形模式与低/变温环境下超导材料宏观力学参数的实验表征；多场运行环境下的超导材料与磁体结构耦合性能的实验方法；以及超导磁体失超过程下的多场多变量的检测。通过开展基础性的实验研究，初步建立典型超导复合材料的不同变形模式下低温力学参数数据库，实现超导材料及其磁体结构极端多场运行和失超环境下的耦合性能测试与多场多变量信号实时采集，为超导材料及其磁体结构的自主设计与工程应用提供基础支撑。

中文关键词： 超导材料/磁体；多场环境；多物耦合行为；实验表征；检测技术

英文摘要： Because of some superior characteristics on Meissner effect and zero resistance, supercoductors have very important applications on many engineering fields. The current-carrying superconductor and its structure are exposed under cryogenic temperature and intense magnetic field, which display a coupled electromagneto-thermomechanical characteristic.In addition, Lorentz force and mechanical force will alter the physical parameters of superconductor and missing of superconducting state and thus further destroy the magnet structure. Based on a series basic questions on the characteristic of mechanics behaviors of supercoductor/magnet under low temperature and multi-field environment, we aimed to establish related experimental characterization and study of their multi-field nonlinear coupled behavior. Some of the research topics include: experimental characterization of superconductors' macro-mechanical parameters under difficult deformation mode and severe low/variable temperature environment;experimental method of coupled performance for supercoductor and superconducting magnet under complex and operating environment; detection of multi-field and multi-variable signal for superconducting magnet multi-field and multi-variable during quenching. And through researching of basic experimental study, to establish prelimi

英文关键词： Superconductor/magnet；Multi-field environment；Multi-field coupled；Experimental characterization；Detection