PD IEC/TR 62518:2009 - Rare earth sintered magnets. Stability of the magnetic properties at elevated temperatures

PD IEC/TR 62518:2009

Rare earth sintered magnets. Stability of the magnetic properties at elevated temperatures

Status : Current   Published : April 2009

Format
PDF

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HARDCOPY



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 SmCo

5

, Sm

2

Co

17

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.




Standard NumberPD IEC/TR 62518:2009
TitleRare earth sintered magnets. Stability of the magnetic properties at elevated temperatures
StatusCurrent
Publication Date30 April 2009
Normative References(Required to achieve compliance to this standard)IEC 60050-121, IEC 60050-151, IEC 60050-221:1990/AMD 1:1993, IEC 60404-8-1, IEC 60050-221:1990
Informative References(Provided for Information)IEC TR 61807:1999
International RelationshipsIEC TR 62518:2009
Draft Superseded By07/30164605 DC
DescriptorsMagnetic flux density, Magnets, High temperatures, Magnetic alloys, Magnetic materials, Stability, Sintered products, Rare earth metals, Magnetic properties of materials
ICS29.030
Title in GermanGesinterte Seltenerd-Magnete. Stabilität der magnetischen Eigenschaften bei höheren Temperaturen
CommitteeISE/108
ISBN978 0 580 58749 8
PublisherBSI
FormatA4
DeliveryYes
Pages32
File Size1.497 MB
Price£182.00


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