source:Powder Metallurgy ReviewXRD patterns of (a) amorphous (first row) and crystalline (second row) (Nd0.7Ce0.3)-Fe-B melt-spun precursors, and (b) their changes after hot-deformation. To identify phases formed in anisotropic hot-deformed (HD) magnets clearly, the HD samples for XRD analysis were pulverized into powders. (c) Demagnetisation curves for HD magnets fabricated from amorphous (HD-A, red line) and crystalline (HD-C, black line) precursors (Courtesy Scripta Materialia)Researchers from the Department of Magnetic Materials in the Powder Materials Division at the Korea Institute of Ma...
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2022
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source：chemeurope.comINRS researchers and international partners have succeeded in looking at spin inside rare earth materials, using a tabletop ultrafast soft-X-ray microscope, for the first time.Sharing real-time information requires complex networks of systems. A promising approach for speeding up data storage devices consists of switching the magnetization, or the electrons’ spin, of magnetic materials with ultra-short femtosecond laser pulses. But, how the spin evolves in the nanoworld on extremely short time scales, in one millionth of one billionth of a second, has remained largely myst...
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2022
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Using Tabletop Ultrafast Soft X-Ray Microscope to Resolve the Spin Dynamics Inside Rare Earth Materials source:AZO OPTICSSharing real-time information requires complex networks of systems. A promising approach for speeding up data storage devices consists of switching the magnetization, or the electrons' spin, of magnetic materials with ultra-short femtosecond laser pulses. But, how the spin evolves in the nanoworld on extremely short time scales, in one millionth of one billionth of a second, has remained largely mysterious.The team of Professor François Légaré at the ...
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2022
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source:MINING.COMResearchers at the Korea Institute of Materials Science (KIMS) have developed rare-earth-saving permanent magnets that can replace the 42M-graded commercial magnets while reducing the amount of neodymium by about 30%. The domestic market for rare-earth permanent magnets for high-efficiency motors was worth $186 billion per year in 2021, and Korea depends on imports of the material. In a paper published in the journal Scripta Materialia, the researchers say the technology achieved the commercial level of performance currently used in the industry, even though the amou...
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2022
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