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Details of Grant 

EPSRC Reference: GR/N16952/01
Title: SURFACE-ENGINEERED BONDED MAGNETS
Principal Investigator: Alcock, Dr JR
Other Investigators:
Stephenson, Professor D
Researcher Co-Investigators:
Project Partners:
S G Magnets Ltd
Department: Sch of Industrial and Manufacturing Scie
Organisation: Cranfield University
Scheme: Standard Research (Pre-FEC)
Starts: 09 October 2000 Ends: 08 October 2003 Value (£): 230,667
EPSRC Research Topic Classifications:
Materials Processing
EPSRC Industrial Sector Classifications:
Aerospace, Defence and Marine Communications
Electronics Transport Systems and Vehicles
No relevance to Underpinning Sectors
Related Grants:
Panel History:  
Summary on Grant Application Form
Recent work by the applicants (rated Alpha 5/ Excellent by EPSRC) has demonstrated the feasability of powder co-injection moulding. A twin-barrel injection moulding machine has been used to inject two different powder/binder mixtures sequentially into a mould.. The process allows surface engineering during powder injection moulding rather than as a post-production stage in the manufacturing cycle. It is the intention of the proposed work to apply this processing philosophy to the production of surface-engineered bonded magnets to allow single step production of magnetically hard skinned components (e.g. Nd-Fe-B or Ba/Sr ferrite) surrounding a soft bonded ferrite or engineering thermoplastic core. In the long term the successful utilisation of this process would allow the replacement of a low-tolerance, manual route for producing surface-engineered magnetic structures.Akey aspect of this programmes will be the ability to model the co-injection process; firstly, in order to be able to predict and control both the skin thickness and the skin geometry, and secondly to optimise net-shape production of the magnets. In order to achieve this there is a fundamental requirement for accurate materials property information for the magnetic material-polymer blends, in the form of PVT and rheology data.
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Project URL:  
Further Information:  
Organisation Website: http://www.cranfield.ac.uk