CASE HISTORIES OF NdFeB IN THE EUROPEAN COMUNITY

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A number of sample applications are discussed in whichthe change to NdFeB has already been made. One reasonfor the use of NdFeB is the material's good magneticvalues at room temperature. They are of benefit aboveall in magneto mechanics, since the forces and torquesare proportional to the square of remanence B . One weakpoint of the new material is its low resistance to corrosion and radiation, which necessitates protective measures. Of much greater significance, however, is thesharp drop in coercivity H which occurs with increasing temperature.

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