Structure of Partly Vacuum Extracted MgH2 Samples

The structure of partly desorbed and quenched samples of MgH2 has been investigated by the neutron diffraction method. In ambient conditions a partly desorbed sample demonstrates high stability, while the same sample quenched at low temperature decomposed into Mg after several days. Obtained neutron...

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Veröffentlicht in:	Diffusion and defect data. Solid state data. Pt. A, Defect and diffusion forum Defect and diffusion forum, 2017-11, Vol.380, p.35-38
Hauptverfasser:	Filippova, Tatyana Victorovna, Lushnikov, Stepan Alexandrovich, Bobrikov, Ivan Anatolievich
Format:	Artikel
Sprache:	eng
Schlagworte:	Hydrogen atoms Neutron diffraction Neutrons Quenching
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Zusammenfassung:	The structure of partly desorbed and quenched samples of MgH2 has been investigated by the neutron diffraction method. In ambient conditions a partly desorbed sample demonstrates high stability, while the same sample quenched at low temperature decomposed into Mg after several days. Obtained neutron data showed that all studied samples contain coexisting Mg and MgH2 phases. Hydrogen distribution for both quenched and non-quenched samples is similar. Hydrogen atoms occupied sites predominantly in the MgH2 lattice, whereas Mg lattice is free of the hydrogen.
ISSN:	1012-0386 1662-9507 1662-9507
DOI:	10.4028/www.scientific.net/DDF.380.35