DEVELOPMENT OF ECONOMIC PRODUCTION TECHNIQUES OF HIGH PERFORMANCE RE-MAGNETSFOR MASS APPLICATIONS

Informazioni relative al progetto

ID dell’accordo di sovvenzione: BREU0156

Progetto chiuso

Data di avvio 1 Dicembre 1990

Data di completamento 30 Novembre 1993

Finanziato da

• Specific research and technological development programme (EEC) in the fields of industrial manufacturing technologies and advanced materials applications (BRITE/EURAM), 1989-1992

Costo totale

Nessun dato

Contributo UE

Nessun dato

Coordinato da

VACUUMSCHMELZE GMBH
Germany

CORDIS fornisce collegamenti ai risultati finali pubblici e alle pubblicazioni dei progetti ORIZZONTE.

I link ai risultati e alle pubblicazioni dei progetti del 7° PQ, così come i link ad alcuni tipi di risultati specifici come dataset e software, sono recuperati dinamicamente da .OpenAIRE .

Risultati sfruttabili

Mechanical alloying of neodymium iron boron alloys

Within the project an economic processing route for the production of neodymium iron boron powders by mechanical alloying has been developed. After an appropriate heat treatment the remanent polarization (related to the theoretical density) and the coercivity amount to 0.75 T and 12 kA/cm. Such alloy powders are appropriate for the manufacture of polymer bonded magnets with a remanent polarization of 0.5 T and a coercivity of 11.5 kA/cm. The maximum energy density amounts to 40 kJm{-3}. By hot pressing and subsequent hot deformation compact anisotropic neodymium iron boron magnets with a remanent polarization of 1.28 T and coercivities of about 8 kA/cm could be prepared on a laboratory scale. Unannealed mechanically alloyed neodymium iron boron powders are also promising for compaction by hot rolling or hot extrusion, respectively.