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June 24th, 2004
Tiny Iron Supplement Has ‘Chilling’ Effect
A pinch of iron dramatically boosts the cooling performance of a material considered key to the development of magnetic refrigerators, report researchers at the Commerce Department’s National Institute of Standards and Technology (NIST) in tomorrow’s issue of Nature. The achievement might move the promising technology closer to market, opening th e way to substantial energy and cost savings for homes and businesses. Robert Shull, one of the NIST inventors of the new nanocomposite material, notes that the modest addition of iron results in the formation of nanometer-sized magnetic clusters in the gadolinium alloy.
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