The origin of ultra-low thermal conductivity in the thermal barrier material La2Zr2O7

DOI

Thermal barrier materials are used in modern turbines to enable them to run above the melting temperature of the turbine blades. However, to go to higher temperatures (and higher efficiencies) we need new barrier materials with lower thermal conductivities. La2Zr2O7 is one such material however the origin of its low thermal conductivity is unknown. We propose to use the MERLIN spectrometer to determine the origin of the low thermal conductivity and identify the individual vibrations responsible for heat transfer. This will enable us to devise new ways to reduce the thermal conductivity both in La2Zr2O7 and other barrier materials.

Identifier
DOI https://doi.org/10.5286/ISIS.E.86387462
Metadata Access https://icatisis.esc.rl.ac.uk/oaipmh/request?verb=GetRecord&metadataPrefix=oai_datacite&identifier=oai:icatisis.esc.rl.ac.uk:inv/86387462
Provenance
Creator Mr Joe Willis; Dr Monica Ciomaga Hatnean; Dr Keith Refson; Professor Jon Goff; Dr Helen Walker; Professor Geetha Balakrishnan; Dr David Voneshen; Dr Toby Perring
Publisher ISIS Neutron and Muon Source
Publication Year 2020
Rights CC-BY Attribution 4.0 International; https://creativecommons.org/licenses/by/4.0/
OpenAccess true
Contact isisdata(at)stfc.ac.uk
Representation
Resource Type Dataset
Discipline Natural Sciences; Physics
Temporal Coverage Begin 2017-05-29T08:00:00Z
Temporal Coverage End 2017-11-16T09:55:07Z