In-Situ Neutron Diffraction and Phase Transformation of an Hydride Forming High-Entropy Alloy
Hydrogen has a strong potential as an alternative fuel, providing that it can be stored in a safe and efficient way. BCC and laves phase materials show a promising hydrogen capacity. In this proposal a high-entropy alloy (HEA) of TiVZrNbHf crystallizing in a BCC structure will be investigated. The material transforms into a FCT structure upon hydrogen absorption. The alloy has shown large hydrogen storage capabilities, up to 2.5 hydrogen atoms per metal atom. Here we would like to examine, by in-situ neutron diffraction, the mechanism of this phase transformation, as well as the hydrogen position in the crystal structure.
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SAHLBERG Martin; CEDERVALL Johan; Thomas C. Hansen; JANSSON Ulf and KARLSSON Dennis. (2017). In-Situ Neutron Diffraction and Phase Transformation of an Hydride Forming High-Entropy Alloy. Institut Laue-Langevin (ILL) doi:10.5291/ILL-DATA.5-24-592
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