ISIS Neutron and Muon Source Data Journal

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

Abstract: 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.

Principal Investigator: Dr David Voneshen
Experimenter: Mr Joe Willis
Experimenter: Dr Monica Ciomaga Hatnean
Experimenter: Dr Keith Refson
Experimenter: Professor Jon Goff
Local Contact: Dr Helen Walker
Experimenter: Professor Geetha Balakrishnan
Experimenter: Dr Toby Perring

DOI: 10.5286/ISIS.E.RB1710105

ISIS Experiment Number: RB1710105

Publisher: STFC ISIS Neutron and Muon Source

Data format: RAW/Nexus
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Data Citation

The recommended format for citing this dataset in a research publication is as:
[author], [date], [title], [publisher], [doi]

For Example:
Dr David Voneshen et al; (2017): The origin of ultra-low thermal conductivity in the thermal barrier material La2Zr2O7, STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1710105

Data is released under the CC-BY-4.0 license.