Changes in phase composition of Zr-Fe-V getter after hydriding and vacuum dehydriding cycles

0353883 - ÚFM 2011 RIV CH eng J - Journal Article
Roupcová, Pavla - Schneeweiss, Oldřich
Changes in phase composition of Zr-Fe-V getter after hydriding and vacuum dehydriding cycles.
Journal of Alloys and Compounds. Roč. 492, č. 1-2 (2010), s. 160-165. ISSN 0925-8388. E-ISSN 1873-4669
R&D Projects: GA MŠMT 1M0512; GA ČR GP106/09/P556
Institutional research plan: CEZ:AV0Z20410507
Keywords : Hydrogen storage materials * Non-evaporable getter * X-ray diffraction * Mössbauer spectroscopy
Subject RIV: BM - Solid Matter Physics ; Magnetism
Impact factor: 2.138, year: 2010

The stability and phase composition of the commercial non-evaporable getter SAES St 707during rehydrogenation (at 550°C) was investigated. Structure and phase composition were studied using X-ray diffraction and Mössbauer spectroscopy. Cubic C15 Laves phase and alpha-Zr were determined from XRD measurements in the samples which were annealed in vacuum. ZrH2 and ZrV2H3.6 phases were identified in the samples which were in the hydrogen charged. In the samples after 5 and 10 cycles a small amount of cubic and monoclinic ZrO2 was found.
Permanent Link: http://hdl.handle.net/11104/0193005