Issue |
EPJ Web of Conferences
Volume 40, 2013
JEMS 2012 – Joint European Magnetic Symposia
|
|
---|---|---|
Article Number | 17005 | |
Number of page(s) | 4 | |
Section | Soft magnetic materials and related applications | |
DOI | https://doi.org/10.1051/epjconf/20134017005 | |
Published online | 14 January 2013 |
https://doi.org/10.1051/epjconf/20134017005
A soft magnetic material for power supply systems of high energy physics experiments
1
UTT-MATT Casaccia Res. Centre, ENEA,
via Anguillarese 301, I-00060 Santa
Maria di Galeria ( Rome), Italy
2
Dipartmento Ingegneria dell'Informazione, University of
Parma, viale G.P.
Usberti 181/A, I-43124
Parma,
Italy
3
FN SpA Nuove Tecnologie e Servizi
Avanzati, Strada per
Crescentino 41, I-13040
Saluggia ( VC),
Italy
4
Istituto Nazionale di Fisica Nucleare - Sezione di
Pavia, via A. Bassi,
6, I-27100
Pavia,
Italy
5
Istituto Nazionale di Fisica Nucleare - Sezione di
Roma, piazzale A.
Moro, 2, I-00185
Rome,
Italy
Most of the high energy physics experiments require their detectors to be embedded in a high intensity magnetic field. In particular the biggest of them, ATLAS, running in the CERN Large Hadron Collider (LHC) particle accelerator, generates a field of 2 T by means of a gigantic toroidal magnet working in open air. Its future phase 2 upgrade plans to move the DC/DC power supplies from the present positions on the external balconies directly on the detectors, where the field is of the order of 1 T. This presentation describes the development of samples made of special magnetic material for inductor cores suitable to work in such an environment.
Starting from iron-silicon powders, at FN plant a plastic forming process, based on powder extrusion, injection moulding and sintering, was developed. To get the best compromise between the forming process requirements (good coupling among the metallic powder and the organic components to assure the right mouldability) and the debinding and sintering conditions, several mixtures (with different percentages and kind of organic additives) were experimented. A proper mould was designed and realized to get torous-shaped prototypes. The preliminary results of the physical-microstructural characterization performed on the first prototypes made will be shown.
© Owned by the authors, published by EDP Sciences, 2013
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