Kinetika fázových transformací v systému Mg2Ni-H

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081723%3A_____%2F08%3A00305517" target="_blank" >RIV/68081723:_____/08:00305517 - 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

Kinetics of phase transformations in Mg2Ni-H system

Popis výsledku v původním jazyce

Kinetics of hydrogen desorption from Mg2NiH4 was studied. Experimental material was prepared by two techniques ? by melting and casting and by ball-milling and compacting into pellets. Experimental materials were hydrogen charged at elevated temperatureand pressure. The pellets were charged in two different regimes resulting in structures with high fraction of twinned low-temperature phase LT2 and with low fraction of LT2. It was made an attempt to measure diffusion coefficients of hydrogen and its temperature dependence both in high-temperature (HT) and in low-temperature (LT) phases of Mg2NiH4. The measurement was carried out in temperature interval from 449 K to 576 K by the volumetric method. It was found that the LT2 slows-down the desorption rate considerably.

Název v anglickém jazyce

Kinetics of phase transformations in Mg2Ni-H system

Popis výsledku anglicky

Kinetics of hydrogen desorption from Mg2NiH4 was studied. Experimental material was prepared by two techniques ? by melting and casting and by ball-milling and compacting into pellets. Experimental materials were hydrogen charged at elevated temperatureand pressure. The pellets were charged in two different regimes resulting in structures with high fraction of twinned low-temperature phase LT2 and with low fraction of LT2. It was made an attempt to measure diffusion coefficients of hydrogen and its temperature dependence both in high-temperature (HT) and in low-temperature (LT) phases of Mg2NiH4. The measurement was carried out in temperature interval from 449 K to 576 K by the volumetric method. It was found that the LT2 slows-down the desorption rate considerably.

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

2008

Kód důvěrnosti údajů

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

Název periodika

Solid State Phenomena

ISSN

1012-0394

e-ISSN

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Svazek periodika

138

Číslo periodika v rámci svazku

-

Stát vydavatele periodika

CH - Švýcarská konfederace

Počet stran výsledku

10

Strana od-do

71-90

Kód UT WoS článku

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EID výsledku v databázi Scopus

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