ISIS Neutron and Muon Source Data Journal

Vibrational property study of high entropy alloy (HEA) hydrides.

Abstract: The proposed experiment at ISIS aims at the characterization of the vibrational properties of high entropy alloy (HEA) hydrides based on the transition metals Ti-V-Zr-Hf-Nb from INS spectroscopy using the TOSCA instrument. HEAs have emerged as a new type of materials which are built on an equimolar mix of several different metals (typically 5 or more) with different sizes and are stabilised by a high entropy of mixing. HEAs are capable of absorbing large quantities of hydrogen. Remarkably, it has been shown that HEAs based on Ti-V-Zr-Hf-Nb can accommodate hydrogen in both tetrahedral and octahedral interstitial sites.. Thus, the hydrogen storage capacity of transition metals, which is limited to H/M below 2, may be exceeded with HEAs. INS spectroscopy is expected to provide new fundamental understanding of hydrogen-metal interactions in a mixed transition metal environment.

Principal Investigator: Professor Martin Sahlberg
Local Contact: Dr Jeff Armstrong
Experimenter: Dr Ulrich Haussermann
Experimenter: Dr Gustav Ek
Experimenter: Dr Johan Cedervall

DOI: 10.5286/ISIS.E.RB1910151

ISIS Experiment Number: RB1910151

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:
Professor Martin Sahlberg et al; (2019): Vibrational property study of high entropy alloy (HEA) hydrides., STFC ISIS Neutron and Muon Source, https://doi.org/10.5286/ISIS.E.RB1910151

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