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4.2 Hard magnetic materials

4.2 Hard magnetic materials

4.2 Hard magnetic materials

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R-T compounds<br />

R-T compounds with high K u and high T c<br />

R 2 T 17<br />

RT 5<br />

Hexagonal<br />

R 2 T 17<br />

= 3(RT 5 )<br />

-R + 2T<br />

Fe dumb-bell site<br />

In R 2 Fe 17<br />

Reduce T C<br />

Rhombohedral

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