Investigation of High Magnetostriction Materials for Advance Sensors and Actuators

用于先进传感器和执行器的高磁致伸缩材料的研究

• 批准号: EP/D057094/1
• 负责人: Anthony Moses
• 金额: $ 41.04万
• 依托单位: CARDIFF UNIVERSITY
• 依托单位国家: 英国
• 项目类别: Research Grant
• 财政年份: 2006
• 资助国家: 英国
• 起止时间: 2006 至 无数据
• 项目状态: 已结题
• 来源: https://gtr.ukri.org/projects?ref=EP%2FD057094%2F1
• 关键词: Investigation; Magnetostriction; Materials; Advance; Sensors

A new class of magnetostrictive nanocomposite material based on cobalt ferrite in a metal binder has recently been identified by our collaborators at Iowa State University (ISU) which presents an alternative or strong competitor to so-called giant magnetostrictive material, Terfenol D, or piezoelectric materials for advanced sensor and actuator applications. As part of a recently awarded NSF grant,ISU group plan to minimise the magnetomechanical hysteresis of the new materials by refining composition and processing to alter their nanostructure and to make the enhanced materials available to the Cardiff group. Dynamic domain studies and measurements of the a.c. stress/magnetostrictive properties of the materials will be carried out in Cardiff to help understand the influence of composition and processing needed to identify ways of optimising the magnetomechanical properties. A finite element method (FEM) electromagnetics programme will be developed to incorporate a magnetoelastic model in order to predict dynamic performance of sensors or actuators based on the new materials. Miniature force/ torque sensors and actuators will be designed, produced and evaluated before comparing with best state of art alternatives. In parallel with the assessment of the materials produced by ISU for the project, alternative production of the material in thick film form will be attempted for possible future microsensor and actuator applications,

爱荷华州立大学(ISU)的合作者最近发现了一种基于金属粘结剂中钴铁氧体的新型磁致伸缩纳米复合材料，它是所谓的超磁致伸缩材料Terfenol D的替代或强大竞争对手，也就是用于先进传感器和执行器应用的压电材料。作为最近授予的NSF赠款的一部分，ISU小组计划通过精炼成分和加工来改变其纳米结构，将新材料的磁力滞后降至最低，并使增强后的材料可供卡迪夫小组使用。交流的动态域研究和测量。材料的应力/磁致伸缩性能将在加的夫进行，以帮助了解成分和工艺的影响，以确定优化磁机械性能的方法。为了预测基于新材料的传感器或执行器的动态性能，将开发一个有限元电磁学程序来结合磁弹性模型。微型力/扭矩传感器和执行器将在与最先进的替代方案进行比较之前进行设计、生产和评估。在评估执行支助股为该项目生产的材料的同时，将尝试替代厚膜形式的材料，以用于未来可能的微传感器和致动器应用，