Maverick method makes magnets

Sept. 1, 2008
Ultra-strong, high-temperature, high-performance permanent magnet compounds, such as Samarium Cobalt, are mainstay materials for industries that rely

Ultra-strong, high-temperature, high-performance permanent magnet compounds, such as Samarium Cobalt, are mainstay materials for industries that rely on high-performance motor and power generation applications, including the defense and automotive sectors. Until now, producing Samarium Cobalt has been a difficult and expensive process. Researchers at Northeastern University, Boston, have broken new ground with the invention of a one-step method for producing pure Samarium Cobalt rare earth permanent magnet materials.

Created at Northeastern's Center for Microwave Magnetic Materials and Integrated Circuits, the direct chemical synthesis process can produce Samarium Cobalt rapidly and in large amounts, at a fraction of the current cost. The process is also environmentally friendly, with 100% recyclable chemicals, and is readily scalable to large volume synthesis. The study describing the invention is published in the July 28 issue of Applied Physics Letters.

Unlike traditional multi-step metallurgical techniques that provide limited control of the size and shape of magnetic particles, the one-step method produces air-stable “nanoblades” (elongated nanoparticles shaped like blades) that allow more efficient assembly that may result in smaller and lighter high-performance magnets.

The invention is anticipated to revitalize the permanent magnet industry and bring major changes to several federal and commercial industries, say researchers. It has the potential to impact size, weight, and performance of aircraft, ships, and land-based vehicles, as well as contribute to more efficient computer technologies and emerging biomedical applications. For more information, visit www.neu.edu.

Sponsored Recommendations

From concept to consumption: Optimizing success in food and beverage

April 9, 2024
Identifying opportunities and solutions for plant floor optimization has never been easier. Download our visual guide to quickly and efficiently pinpoint areas for operational...

A closer look at modern design considerations for food and beverage

April 9, 2024
With new and changing safety and hygiene regulations at top of mind, its easy to understand how other crucial aspects of machine design can get pushed aside. Our whitepaper explores...

Cybersecurity and the Medical Manufacturing Industry

April 9, 2024
Learn about medical manufacturing cybersecurity risks, costs, and threats as well as effective cybersecurity strategies and essential solutions.

Condition Monitoring for Energy and Utilities Assets

April 9, 2024
Condition monitoring is an essential element of asset management in the energy and utilities industry. The American oil and gas, water and wastewater, and electrical grid sectors...

Voice your opinion!

To join the conversation, and become an exclusive member of Machine Design, create an account today!