| EPSRC Reference: |
EP/L017563/1 |
| Title: |
Substitution and Sustainability in Functional Materials and Devices |
| Principal Investigator: |
Reaney, Professor IM |
| Other Investigators: |
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| Researcher Co-Investigators: |
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| Project Partners: |
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| Department: |
Materials Science and Engineering |
| Organisation: |
University of Sheffield |
| Scheme: |
Standard Research |
| Starts: |
01 July 2014 |
Ends: |
30 December 2019 |
Value (£): |
2,466,368
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| EPSRC Research Topic Classifications: |
| Electronic Devices & Subsys. |
Manufact. Enterprise Ops& Mgmt |
| Manufacturing Machine & Plant |
Materials Processing |
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| EPSRC Industrial Sector Classifications: |
| Manufacturing |
Electronics |
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| Related Grants: |
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| Panel History: |
| Panel Date | Panel Name | Outcome |
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24 Oct 2013
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Materials Substitution - Interview Meeting
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Announced
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Summary on Grant Application Form |
Functional Materials and Devices (FMD) is a rapidly evolving subject which underpins many aspects of modern life such as antennas, energy storage devices, multicomponent sensors and smart materials. At a segment size of ~£3Bn p.a., the UK represents ~25% of the total EU production. However, the FMD sector in the EU and UK relies heavily on raw materials which have geopolitical, geological and environmental constraints. The response to materials scarcity and environmental restrictions depends on the industry, but companies indicate that resource efficiency, R&D, and innovations for substitution are necessary. Our vision is to utilise materials engineering, multiscale modeling, advanced manufacturing, supply chain/life cycle analysis and industrial partnerships to establish an holistic response to substitution and sustainability within the UK FMD sector.
6 mission-critical projects have been identified by the investigators which will be the initial focus of the programme. Follow on projects will be developed during the grant in collaboration with an expanding portfolio of industrial partners.
i) Elimination of expensive RE-oxides from the fabrication of multilayer ceramics capacitors (MLCC):
Currently, the lifetime of an MLCC is enhanced by the use of ~2wt% of RE-oxide (RE = Dy, Ho). Dy is the number one most endangered element according to the US government. Eradicating Dy and Ho from the fabrication MLCC is thus an urgent priority
ii) RE substitution in magnetocalorics for energy efficient refrigeration:
Dy is also a critical element in magnetocalorics for energy efficient refrigeration. RE-free strategies to enhance the giant magnetocaloric effect will be explored so that this highly efficiently refrigeration technology can be made commercial.
iii) Replacement of RE based oxides in dielectrically loaded satellite receive antennas:
Ultra small GPS microstrip patch antennas utilize ceramics based on barium RE titanates (BRET, RE = Nd and Sm) since these are the only currently available high permittivity (80-90) materials with the required properties. We will explore new multilayer antenna designs on RE free, low cost dielectric substrates such as BaTi4O9.
iv) Manufacture of actuators using PbO-free piezoelectric oxides:
Environmentally friendly, PbO-free piezoelectrics) have been developed over the last decade as potential replacements for Pb(Zr,Ti)O3 (PZT). Device fabrication and characterization will be studied along with an investigation of critical issues concerning direct integration into end-user applications.
v) Replacing exotic compounds with robust oxide ceramics in thermoelectric generators
Currently, the best thermoelectric materials (Figure of Merit, ZT > 1) for waste heat harvesting are based on tellurides, antimonides and germanides. Not only are these compounds toxic and in short supply but they are also unstable at the proposed operating temperatures. Thermoelectric generators based on equally performant, more abundant and less toxic oxide materials will be developed
vi) Manufacturing routes to sustainability in light emitting diodes (LEDs)
Energy efficient LEDs have the capacity to replace completely conventional W based filament light sources but scaling up this technology results in critical thermal management problems which are alleviated by conductive Ag paste, too expensive to meet the envisaged market. New strategies to dissipate heat will therefore be explored so that W based high powered lighting can be replaced by LED energy efficient equivalents.
All projects will be make use of multiscale modelling in device design, materials development and understanding physical properties. In addition, a Supply Chain Environmental Analysis Tool (SCEnAT) will be utilized on all projects. SCEnAT is coded based on the state-of-the-art methodology in carbon and has been used by leading industry such as TATA, Rolls-Royce and Sheffield Forgemasters International.
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Key Findings |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Potential use in non-academic contexts |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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Impacts |
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| Description |
This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk |
| Summary |
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| Date Materialised |
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Sectors submitted by the Researcher |
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This information can now be found on Gateway to Research (GtR) http://gtr.rcuk.ac.uk
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| Project URL: |
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| Further Information: |
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| Organisation Website: |
http://www.shef.ac.uk |