About: Influence of phase composition of Mg2NiH4 upon the hydrogen desorption kinetics

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rdf:type	skos:Concept http://linked.opendata.cz/ontology/domain/vavai/Vysledek
Description	Mg2NiH4 exists in two low-temperature modifications: monoclinic LT1 and monoclinic microtwinned LT2. Three samples of Mg2NiH4 were prepared containing predominantly LT1 phase, predominantly LT2 phase and similar portions of both phases. Hydrogen desorption curves were measured and a parallel X-ray diffraction (XRD) study was performed. It was found that the great difference between amount of LT2 and LT1, measured by the ratio of the characteristic XRD peaks, leads to distinctly doublebranched desorption curves. The LT2 phase substantially decelerates the desorption of hydrogen. Mg2NiH4 exists in two low-temperature modifications: monoclinic LT1 and monoclinic microtwinned LT2. Three samples of Mg2NiH4 were prepared containing predominantly LT1 phase, predominantly LT2 phase and similar portions of both phases. Hydrogen desorption curves were measured and a parallel X-ray diffraction (XRD) study was performed. It was found that the great difference between amount of LT2 and LT1, measured by the ratio of the characteristic XRD peaks, leads to distinctly doublebranched desorption curves. The LT2 phase substantially decelerates the desorption of hydrogen. (en) Mg2NiH4 existuje ve dvou nízkoteplotních modifikacích: monoklinické LT1 a monoklinické mikrozdvojčatěné LT2. Tří vzorky Mg2NiH4 byly připraveny s obsahem převážně fáze LT1, s obsahem převážně fáze LT2 a s obsahem stejných podílů obou fází. Byly měřeny desorpční křivky vodíku a současně probíhalo studium pomocí rentgenové difrakce (XRD) Bylo zjištěno, že velký rozdíl mezi množstvím fáze LT2 a LT1 měřeno podílem chacrakteristických XRD peaků vede zřetelně ke vzniku desorpčních křivek s dvěma větvemi. Fáze LT2 podstatně snižuje desorpci vodíku. (cs)
Title	Influence of phase composition of Mg2NiH4 upon the hydrogen desorption kinetics Influence of phase composition of Mg2NiH4 upon the hydrogen desorption kinetics (en) Vliv fázového složení Mg2NiH4 na desorpční kinetiku vodíku (cs)
skos:prefLabel	Influence of phase composition of Mg2NiH4 upon the hydrogen desorption kinetics Influence of phase composition of Mg2NiH4 upon the hydrogen desorption kinetics (en) Vliv fázového složení Mg2NiH4 na desorpční kinetiku vodíku (cs)
skos:notation	RIV/68081723:_____/08:00308896!RIV09-AV0-68081723
http://linked.open...avai/riv/aktivita	P Z
http://linked.open...avai/riv/aktivity	P(GA106/07/0010), Z(AV0Z20410507)
http://linked.open...iv/cisloPeriodika	4
http://linked.open...vai/riv/dodaniDat	2009
http://linked.open...aciTvurceVysledku	David, Bohumil Čermák, Jiří
http://linked.open.../riv/druhVysledku	J - Článek v odborném periodiku
http://linked.open...iv/duvernostUdaju	S - Úplné a pravdivé údaje nepodléhající ochraně podle zvláštních právních předpisů
http://linked.open...titaPredkladatele	Ústav fyziky materiálů AV ČR, v. v. i.
http://linked.open...dnocenehoVysledku	372209
http://linked.open...ai/riv/idVysledku	RIV/68081723:_____/08:00308896
http://linked.open...riv/jazykVysledku	eng - angličtina
http://linked.open.../riv/klicovaSlova	magnesium and nickel alloys; hydrides; hydrogen storage and desorption (en)
http://linked.open.../riv/klicoveSlovo	hydrides hydrogen storage and desorption magnesium and nickel alloys
http://linked.open...odStatuVydavatele	US - Spojené státy americké
http://linked.open...ontrolniKodProRIV	[076302B90A0E]
http://linked.open...i/riv/nazevZdroje	Scripta Materialia
http://linked.open...in/vavai/riv/obor	BJ
http://linked.open...ichTvurcuVysledku	2 (xsd:int)
http://linked.open...cetTvurcuVysledku	2 (xsd:int)
http://linked.open...vavai/riv/projekt	Diffusion of hydrogen in alloys Mg-Ni modified by chosen elements that suppress the stability of hydrides
http://linked.open...UplatneniVysledku	2008
http://linked.open...v/svazekPeriodika	59
http://linked.open...iv/tvurceVysledku	David, Bohumil Čermák, Jiří
http://linked.open...ain/vavai/riv/wos	000257615700016
http://linked.open...n/vavai/riv/zamer	Physical properties of advanced materials in relation to their microstructure and processing
issn	1359-6462
number of pages	4 (xsd:int)
is http://linked.open...avai/riv/vysledek of	Influence of phase composition of Mg2NiH4 upon the hydrogen desorption kinetics Influence of phase composition of Mg2NiH4 upon the hydrogen desorption kinetics

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