Rare earth sintered magnets. Stability of the magnetic properties at elevated temperatures
Rare earth sintered magnets. Stability of the magnetic properties at elevated temperatures
What is PD IEC/TR 62518 - Rare earth sintered magnets properties at elevated temperature about?
PD IEC/TR 62518 is a technical report on the temperature behaviour of rare earth sintered magnets in detail for use in designing magnetic circuits exposed to elevated temperatures. The temperature behaviour of SmCo5, Sm2Co17 and Nd-Fe-B sintered magnets is described. The various changes in open circuit flux that can occur due to temperature are discussed in Clause 4. The long-term stability of the magnets is discussed in Clause 5. The experimental procedures are described in Clause 6. Results of the measurements of the flux loss occurring at the ambient temperature after heating isothermally at 50 °C, 75 °C, 100 °C, 125 °C, 150 °C, and 200 °C for up to 1000 h are given in PD IEC/TR 62518 . The effect of length to diameter ratio (L/D) of the magnet samples and the influence of HcJ on the flux loss was also studied. The results are discussed in PD IEC/TR 62518 . Note: The temperature stability correlated with the ...
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