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Effect of Zr on High Properties Consistency of NdFeB Magnets
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    Abstract:

    Producing on scale for sintered NdFeB magnets demands consistency of magnets. The effect of element Zr and Nb on consistency of magnets was investigated. It was found that as Zr content increased from 0 to 0.07at%, the sinter temperature of magnet could reach to 1110 ℃ with no abnormal grain growth, and coercivity increased to 1021 kA/m. And Nb addition was benefit for squareness improvement. Combined addition of Nb 0.07at% and Zr 0.07at%, the magnets showed much better properties consistency even at different positions in same furnace and the energy densities reached 403.8±4.7 kJ/m3. It was attributed that the sensitization of sinter temperature of magnets was greatly removed by Zr and Nb addition

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[Yu Lianqing, Huang Cuicui. Effect of Zr on High Properties Consistency of NdFeB Magnets[J]. Rare Metal Materials and Engineering,2009,38(3):465~467.]
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  • Received:February 11,2008
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