SBIR Phase I: Nanocrystalline Fe-Co For Electromagnetic Interference (EMI) Suppression

SBIR 第一阶段：用于电磁干扰 (EMI) 抑制的纳米晶铁钴

• 批准号: 0109730
• 负责人: Tirumalai Sudarshan
• 金额: $ 10万
• 依托单位: Materials Modification Inc.
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 2001
• 资助国家: 美国
• 起止时间: 2001-07-01 至 2001-12-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=0109730&HistoricalAwards=false
• 关键词: SBIR; Phase; Nanocrystalline; Fe; Co

This Small Business Innovation (SBIR) Phase I Project proposes to produce soft magnetic Fe-Co nanocomposites with end applications in EMI suppression, motors, generators, magnetic bearings, magnetic recording heads and many advanced electric systems. High performance electronic color image display has become a standard feature of many modern commercial products. These products must use timing circuits and operating frequencies from as low as 30 MHz to over 130 MHz. Wide bandwidth electromagnetic interference (EMI) noises are inherent to these characteristically high frequency architecture systems. Hence development of cost effective and high performance materials are of great interest to prevent EMI. Excellent magnetic properties of nanocrystalline Fe-Co can find an important application in EMI prevention devices. In accordance with this development, Materials Modification Inc. (MMI) proposes to synthesize and process Fe-Co nanocomposites by the powder metallurgy (P/M) route. MMI has expertise in nanopowder processing techniques that can be easily scaled up for production. Upon completion of this Phase I project, anadvanced Fe-Co soft magnet with high permeability, large saturation magnetization, low energy loss (hysteretic and eddy current), and high temperature properties will be developed. Composition and structure will be tailored at the nano-scale to obtain the desired mechanical and magnetic properties required for EMI suppression devices. The nanocrystalline Fe-Co soft magnets can be used in EMI prevention devices, motors and transformers, generators, magnetic bearings, data communication interface components, magnetic recording heads, sensors, and reactors. Fe-Co nanocomposite with superior magnetic properties, low core-loss, and creep resistance at elevated temperatures can be used in integral starter/generation (ISGs) and power units (IPUs) in a modern aircraft.

这个小企业创新（SBIR）第一阶段项目提出生产软磁Fe-Co纳米复合材料，最终应用于EMI抑制，电机，发电机，磁轴承，磁记录磁头和许多先进的电气系统。高性能电子彩色图像显示已成为许多现代商业产品的标配。这些产品必须使用定时电路，工作频率低至30 MHz至130 MHz以上。宽带电磁干扰（EMI）噪声是这些高频系统固有的特征。因此，开发具有成本效益和高性能的材料是防止电磁干扰的重要途径。纳米晶铁钴优异的磁性能在电磁干扰防制器件中有重要的应用。根据这一发展趋势，Materials Modification Inc. （MMI）提出采用粉末冶金（P/M）方法合成和加工Fe-Co纳米复合材料。MMI在纳米粉末加工技术方面拥有专业知识，可以很容易地扩大生产规模。一期工程建成后，将研制出高磁导率、大饱和磁化强度、低能量损耗（磁滞和涡流）、高温性能的新型铁钴软磁体。组成和结构将在纳米尺度上进行定制，以获得所需的电磁干扰抑制器件所需的机械和磁性能。纳米晶Fe-Co软磁体可用于防电磁干扰器件、电机和变压器、发电机、磁轴承、数据通信接口组件、磁记录磁头、传感器和电抗器。Fe-Co纳米复合材料具有优异的磁性、低铁芯损耗和高温下抗蠕变性能，可用于现代飞机的整体启动/发电（isg）和动力单元（ipu）。