Researchers Discover Magnets Secret

Permanent magnets are an important component in a broad variety of technologies, from car starters to alternators for wind power generation to computer hard drives. Researchers at the U.S. DOE's Argonne National Laboratory have found new clues into ways to make those magnets longer-lasting and more powerful. Using the Western Hemisphere's most powerful X-rays at the Advanced Photon Source at Argonne, they were able to see new details of rare-earth ions, a critical component of permanent magnets.  Using the Western Hemisphere's most powerful X-rays the researchers were able to see new details of rare-earth ions, a critical component of permanent magnets. Rare-earth ions in dissimilar crystalline environments compete with one another, and undermine the magnetic performance of the highest performance magnets.   Read more

Resources: "Argonne Researchers discover keys to improving commercial magnet technology", Argonne National Laboratory News Release, November 18, 2005

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