Environment

Breakthrough Magnetic Alloy Could Lead To Cheaper Cars, Wind Turbines; Update

Breakthrough Magnetic Alloy Could Lead To Cheaper Cars, Wind Turbines; Update

Breakthrough Magnetic Alloy Could Lead To Cheaper Cars, Wind Turbines; Update

This is going to be a game changer a far as automobile industry is concerned. Scientists associated with U.S. Department of Energy’s Ames Laboratory have come out with a new magnetic alloy that that is far cheaper and affordable compared to the existing rare-earth permanent magnets. The option is going to become a permanent fixture in wind turbine and automobile engines.

The new development has come thanks to renowned scientists Karl A. Gschneidner and his associates who are working with the U.S. Department of Energy’s Ames Laboratory. The team working on this project has come out with an all new magnetic alloy that they claim is going to be very suitable alternative to conventional rare-earth permanent magnets.

According to the scientists the new magnetic alloy actually does away with the use of one of the very scarce and pricey rare earth elements that is find in very short supply and in a very small part of the world. Instead of using rare earth namely dysprosium, it will use cerium that is found in ample supply across the world.

BMW MiniThe resultant product that is actually made of neodymium, iron and boron co-doped with cerium and cobalt, costs a fraction of money than what the existing rare-earth permanent magnets cost. Researchers are of the opinion that experiments performed at Ames Laboratory by post-doctoral researcher Arjun Pathak, and Mahmud Khan (now at Miami University) showed that the cerium-containing alloy’s intrinsic coercivity—the ability of a magnetic material to resist demagnetization—far exceeds that of dysprosium-containing magnets at high temperatures.

While talking about the development the lead scientist Gschneidner says, “This is quite exciting result; we found that this material works better than anything out there at temperatures above 150° C…It’s an important consideration for high-temperature applications.”

The study titled “Cerium: An Unlikely Replacement of Dysprosium in High Performance Nd-Fe-B Permanent Magnets” is being talked about across the world at the moment. It was published in Advanced Materials, and co-authored by Arjun K. Pathak, Mahmud Khan, Karl. A. Gschneidner, Ralph W. McCallum, Lin Zhou, Kewei Sun, Kevin W. Dennis, Matthew J. Kramer and Vitalij Pecharsky.

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