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Nanostructured energy-harvesting thermoelectrics based on Mg2Si

Objective

The core concept of the ThermoMag project revolves around developing and delivering new energy-harvesting thermoelectric materials and proof-of-concept modules, based on nanostructured bulk Mg2Si solid solutions. This class of TE material would have the following attractive characteristics: (i) ZT value >1.5 for both n-type and p-type doped material, (ii) operational in the temperature range 300-550ºC, (iii) very low density of 2 g/cm3, especially suitable for transportation applications, (iv) high melting point of >1000ºC, and good thermal stability up to 600ºC, (v) good oxidation and corrosion resistance and mechanical strength, (vi) isotropic thermoelectric properties, (vii) non-toxicity of elements, (viii) widely-available pure materials with very large EU supply chains and (ix) low raw material cost <15 Euros/kg, combined with low manufacturing costs. A number of methods will be looked at to achieve 3D bulk nanocrystalline Mg2Si including low-cost combustion synthesis, mechanical alloying and high-temperature solid-state synthesis in inert crucibles. Various ball milling approaches will be used to produce doped Mg2Si nanoparticle constituents that can then be compressed via rapid spark plasma sintering or hot pressing in vacuum. 3D nanocomposite material will also be produced with the addition or in-situ production of inert nanoparticles, as well as thin films using multilayer approaches. Doping using various elements will be predicted by ab-initio density-functional theory modelling. These methods will lead to the safe production of nanostructured n- and p-type legs for further thermoelectric and materials testing. In order to prove the concept works, demonstrator modules will be assembled that integrate the new energy-harvesting nanostructured material. Such modules have widespread applications in automotive, aerospace and manufacturing sectors, where waste heat can be usefully recovered, with clear environmental benefits.
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Coordinator

EUROPEAN SPACE AGENCY

Address

24 Rue Du General Bertrand
75007 Paris

France

Activity type

Other

EU Contribution

€ 661 094,50

Administrative Contact

Martin Zell (Dr.)

Participants (16)

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TERMO-GEN AB

Sweden

EU Contribution

€ 198 112

JAGUAR LAND ROVER LIMITED

United Kingdom

EU Contribution

€ 6 265,50

CENTRO RICERCHE FIAT SCPA

Italy

EU Contribution

€ 213 000

VOLVO TECHNOLOGY AB

Sweden

EU Contribution

€ 95 403

AIRBUS DEFENCE AND SPACE GMBH

Germany

EU Contribution

€ 150 173

Babrow Consultants Ltd

United Kingdom

EU Contribution

€ 43 500

AKADEMIA GORNICZO-HUTNICZA IM. STANISLAWA STASZICA W KRAKOWIE

Poland

EU Contribution

€ 304 800

CARDIFF UNIVERSITY

United Kingdom

EU Contribution

€ 298 487

UNIVERSITE DE LORRAINE

France

EU Contribution

€ 290 072

CENTRE NATIONAL DE LA RECHERCHE SCIENTIFIQUE CNRS

France

EU Contribution

€ 283 532

ARISTOTELIO PANEPISTIMIO THESSALONIKIS

Greece

EU Contribution

€ 183 700

UNIVERSITY OF CYPRUS

Cyprus

EU Contribution

€ 252 240

FRAUNHOFER GESELLSCHAFT ZUR FOERDERUNG DER ANGEWANDTEN FORSCHUNG E.V.

Germany

EU Contribution

€ 722 601

IOFFE PHYSICO-TECHNICAL INSTITUTE

Russia

EU Contribution

€ 214 000

TEGma AS

Norway

EU Contribution

€ 70 000

INSTITUT NATIONAL POLYTECHNIQUE DE LORRAINE

France

Project information

Grant agreement ID: 263207

Status

Closed project

  • Start date

    1 May 2011

  • End date

    31 October 2014

Funded under:

FP7-NMP

  • Overall budget:

    € 6 352 033,64

  • EU contribution

    € 3 986 980

Coordinated by:

EUROPEAN SPACE AGENCY

France