REDUCED CRITICAL CERIUM-BASED HIGH TEMPERATURE MAGNET
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United States of America
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Dec 12, 2024
app pub date -
Apr 19, 2024
filing date -
Apr 19, 2024
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Abstract
A bulk permanent magnet composition comprising the formula (Ce1-xM1x)2.7-(v+w)M2v(Fe14-yCoy)1-zM3zB, or alternatively, (Ce1-xM1x)2-vM2v(Fe14-yCoy)1-zM3zB, wherein: M1 represents at least one lanthanide element other than Ce; M2 represents at least one element selected from the group consisting of Sn, Sb, Bi, Pb, Ca, Sr, and Zr; M3 represents at least one element selected from the group consisting of Ti, Cr, Mn, Ni, Cu, Zn, Zr, Nb, Mo, W, Ta, and Hf; 0≤x<1; 0≤v≤1; 0≤y≤3; 0≤w≤0.8; and 0≤z≤1. Also described herein are methods for producing the permanent magnet.
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