NANOMAGMA

Nanocomposite magnetocaloric materials

Coordinatore	IMPERIAL COLLEGE OF SCIENCE, TECHNOLOGY AND MEDICINE    more  Organization address address: SOUTH KENSINGTON CAMPUS EXHIBITION ROAD city: LONDON postcode: SW7 2AZ contact info Titolo: Mr. Nome: Shaun Cognome: Power Email: send email Telefono: +44 20 7594 8773 Fax: +44 20 7594 8609
Nazionalità Coordinatore	United Kingdom [UK]
Totale costo	172˙240 €
EC contributo	172˙240 €
Programma	FP7-PEOPLE Specific programme "People" implementing the Seventh Framework Programme of the European Community for research, technological development and demonstration activities (2007 to 2013)
Code Call	FP7-PEOPLE-2009-IEF
Funding Scheme	MC-IEF
Anno di inizio	2010
Periodo (anno-mese-giorno)	2010-05-01   -   2012-04-30

 Partecipanti

#	participant	country	role	EC contrib. [€]
1	IMPERIAL COLLEGE OF SCIENCE, TECHNOLOGY AND MEDICINE  Organization address address: SOUTH KENSINGTON CAMPUS EXHIBITION ROAD city: LONDON postcode: SW7 2AZ contact info Titolo: Mr. Nome: Shaun Cognome: Power Email: send email Telefono: +44 20 7594 8773 Fax: +44 20 7594 8609	UK (LONDON)	coordinator	172˙240.80

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 Obiettivo del progetto (Objective)

'Worldwide a large part of produced electrical energy is used in inefficient vapour-compression cooling systems. Magnetic refrigeration near room-temperature has great potential to establish itself as a 21st century cooling technology and become an energy-efficient, environmentally friendly, cost-saving approach to replace the conventional technology. For successful operation of the magnetic refrigerator, the magnitude of the entropy change associated with the change of magnetic state of the active magnetic coolant is crucial and some materials including La(Fe,Si)13 are very attractive. Previous work has focused on optimising materials to enhance the magnetic properties of the parent compound, but it is clear that the operating field and the ability to create suitable thermal pathways are critical factors limiting industrial use. In this project we propose to use simple low-cost, scalable processing routes to develop novel nano-architectures to tackle thermal management and low operating fields. The magnetocaloric material La(Fe,Si)13 will be integrated into a percolating network of high thermal conductivity material e.g. Cu, alumina or carbon nanotubes. A number of approaches will be explored: solution, vapour phase and conventional powder processing. We will examine 1D, 2D and 3D nanocomposite structures to probe key issues such as effects of grain and particle size, strain, orientation and volume fraction of active material. Exploring intergrain exchange coupling of the La(Fe,Si)13 with a soft magnetic material of high moment such as -Fe will address the issue of lowering the operating field. The project will provide ample training opportunities for the IEF fellow in a range of complementary areas. We will establish structure-property relationships and develop fundamental physical models for single-phase and composite devices. This will allow rational design of magnetic refrigerant systems and be a major step towards industrial application of this technology.'