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Reference IEC/TR 62518 ed1.0 withdrawn corrigendum
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Title Rare earth sintered magnets - Stability of the magnetic properties at elevated temperatures
Publication date 2009-03-17
Format, price
(Swiss francs)
and language
170.- 28 pages
170.- 1286 Kb
Abstract IEC/TR 62518:2009(E) describes 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 of open circuit flux which 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 Clause 7. The effect of length to diameter ratio (L/D) of the magnet samples and the influence of HcJ on the flux loss were also studied. The results are discussed in Clause 8. The data in this technical report was provided by the Institute of Electrical Engineers of Japan (IEEJ) and its subcommittees. This data has been gathered from the members of these sub-committees. The temperature stability correlated with the complex corrosion behaviour and the spin re-orientation phenomena at cryogenic temperatures will not be given in this technical report.
Technical Committee 68 - Magnetic alloys and steels  RSS
ICS Codes
29.030 Magnetic materials
*Steels with special magnetic properties, see 77.140.40
Replaced by
Stability date 2021
Work in progress
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