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Rare earth permanent magnet

2025-06-20 20:314660下载
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A rare earth permanent magnet consists of 20 - 40wt% of at least one rare earth element R, 0.5 - 4.5wt% of boron B, 0.03 - 0.5wt% of M (at least one of Al, Cu, Sn and Ga), 0.01- 0.2wt% of Bi, and the balance being at least one transition metal element T.


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