Souvislost mezi kinetikou desorpce vodíku a strukturou slitiny (Mg2Ni)Hx a navodíkované eutektické slitiny (Mg/Mg2Ni)Hy./sub

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F09%3A00323350" target="_blank" >RIV/68081723:_____/09:00323350 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Interrelation between hydrogen desorption kinetics and structure of (Mg2Ni)Hx and hydrogenated eutectic (Mg/Mg2Ni)Hy./sub

Popis výsledku v původním jazyce

Mg-rich alloys of the binary system Mg-Ni are prospective hydrogen-storage materials. In the present study, desorption characteristics of hydrided Mg2Ni intermetallic and hydrided Mg/Mg2Ni eutectic mixture were investigated. Structure of experimental materials during the hydrogenation was observed by SEM. Three modifications of (Mg2Ni)Hx (x 4) were prepared differing in the ratio of two low-temperature phases f = LT2/LT1: with (i) f > 1, (ii) f 1 and with (iii) f <1. Evolution of the ratio f during hydrogen desorption was checked by XRD. It was found that the micro-twinned phase LT2 is not desirable in hydrogen-storage materials containing Mg2Ni intermetallic. Diffusion coefficient of hydrogen in LT2 is about 20 times lower than in LT1.

Název v anglickém jazyce

Interrelation between hydrogen desorption kinetics and structure of (Mg2Ni)Hx and hydrogenated eutectic (Mg/Mg2Ni)Hy./sub

Popis výsledku anglicky

Mg-rich alloys of the binary system Mg-Ni are prospective hydrogen-storage materials. In the present study, desorption characteristics of hydrided Mg2Ni intermetallic and hydrided Mg/Mg2Ni eutectic mixture were investigated. Structure of experimental materials during the hydrogenation was observed by SEM. Three modifications of (Mg2Ni)Hx (x 4) were prepared differing in the ratio of two low-temperature phases f = LT2/LT1: with (i) f > 1, (ii) f 1 and with (iii) f <1. Evolution of the ratio f during hydrogen desorption was checked by XRD. It was found that the micro-twinned phase LT2 is not desirable in hydrogen-storage materials containing Mg2Ni intermetallic. Diffusion coefficient of hydrogen in LT2 is about 20 times lower than in LT1.

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

BJ - Termodynamika

OECD FORD obor

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Projekt

<a href="/cs/project/GA106%2F07%2F0010" target="_blank" >GA106/07/0010: Difúze vodíku ve slitinách Mg-Ni modifikovaných vybranými prvky snižujícími stabilitu hydridů</a><br>

Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2009

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Defect and Diffusion Forum

ISSN

1012-0386

e-ISSN

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Svazek periodika

289-292

Číslo periodika v rámci svazku

-

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

8

Strana od-do

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Kód UT WoS článku

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EID výsledku v databázi Scopus

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