Sensors: Magnetoshapememory Effect Harnessed for Power Generation and Sensing

传感器：利用磁形状记忆效应发电和传感

• 批准号: 0428428
• 负责人: Huseyin Sehitoglu
• 金额: $ 27.02万
• 依托单位: University of Illinois at Urbana-Champaign
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2004
• 资助国家: 美国
• 起止时间: 2004-07-01 至 2007-06-30
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0428428&HistoricalAwards=false
• 关键词: Sensors; Magnetoshapememory; Effect; Harnessed; Power

Abstract0428428H. SehitogluUniv. IllinoisThe research project proposes to undertake an effort in understanding the ferromagnetic shape memory alloys to ultimately accelerate their utilization in new power generation and sensing systems. By harnessing the change in magnetization associated with external stress and/or displacements, the work will investigate how to generate power for sensor, actuator and other devices with a wide range of applications. Experimental tools for measuring in-situ deformation and magnetization are investigated, and the mechanical and magneto-mechanical response of promising ferromagnetic shape memory materials studied. These new materials include CoNiAl, FeNiGa and CoNi in single crystalline and polycrystalline forms. The work also describes ways to improve the thermal treatment and composition of these materials so they can be utilized more reliably in applications for both sensing and power generation. The experimental results are expected to provide the constants for the magneto-mechanical model as well as screen materials. Combined as a whole, an experimental, theoretical and device design methodology program with significant potential benefits is envisioned. The project further provides an opportunity to train graduate students as well as undergraduate students in understanding transforming materials, ferromagnetism, shape memory behavior, and sensing and power generation devices. The outreach activities will include a short course on magneto shape memory effect for engineers and collaborating with industrial and federal organizations interested in remote sensing and power generation.

摘要0428428 H。SehitogluUniv.该研究项目建议努力了解铁磁形状记忆合金，以最终加速其在新发电和传感系统中的应用。通过利用与外部应力和/或位移相关的磁化变化，该工作将研究如何为传感器、致动器和其他具有广泛应用的设备发电。研究了用于测量原位形变和磁化的实验工具，并研究了有前途的铁磁形状记忆材料的机械和磁机械响应。这些新材料包括单晶和多晶形式的CoNiAl、FeNiGa和CoNi。这项工作还描述了改善这些材料的热处理和成分的方法，使它们能够更可靠地用于传感和发电应用。实验结果可望为磁力学模型和屏蔽材料提供常数。结合作为一个整体，一个实验，理论和器件设计方法的计划，具有显着的潜在利益的设想。该项目还提供了一个机会，培养研究生以及本科生在理解转换材料，铁磁性，形状记忆行为，传感和发电设备。 推广活动将包括为工程师举办一个关于磁电机形状记忆效应的短期课程，并与对遥感和发电感兴趣的工业组织和联邦组织合作。