High energy ball milling method for making rare earth-...

Details High energy ball milling method for making rare earth-... High energy ball milling method for making rare earth-...

C - Chemistry, Metallurgy

22

C

148/5, 148/6

C22C 1/04 (2006.01) H01F 1/053 (2006.01) H01F 1/057 (2006.01) H01F 1/06 (2006.01) H01F 41/02 (2006.01)

Patent

CA 1275377

HIGH ENERGY BALL MILLING METHOD FOR MAKING RARE EARTH-TRANSITION METAL-BORON PERMANENT MAGNETS Abstract of the Disclosure Fully crystalline forms of rare earth- transition metal-boron compositions can be attrited under high-energy conditions (such as high energy ball milling) to product homogeneous alloy with crystals smaller than single magnetic domain size. Such alloy can be annealed or hot formed to produce permanent magnets with high magnetic energy products.

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