Počet záznamů: 1
HYDROGEN ABSORPTION IN A-Co30Fe55B15
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SYSNO ASEP 0468053 Druh ASEP C - Konferenční příspěvek (mezinárodní konf.) Zařazení RIV D - Článek ve sborníku Název HYDROGEN ABSORPTION IN A-Co30Fe55B15 Tvůrce(i) Čermák, Jiří (UFM-A) RID, ORCID
Král, Lubomír (UFM-A) RID, ORCID
Roupcová, Pavla (UFM-A) RID, ORCIDCelkový počet autorů 3 Zdroj.dok. METAL 2016: 25th International Conference on Metallurgy and Materials. - Ostrava : Tanger Ltd., 2016 - ISBN 978-80-87294-67-3 Rozsah stran s. 1368-1373 Poč.str. 6 s. Forma vydání Nosič - C Akce METAL 2016 - Anniversary International Conference on Metallurgy and Materials /25./ Datum konání 25.05.2016 - 27.05.2016 Místo konání Brno Země CZ - Česká republika Typ akce WRD Jazyk dok. eng - angličtina Země vyd. CZ - Česká republika Klíč. slova absorption, Co 30 Fe 55 B 15 ; Hydrogen ; Co30Fe55B15 Vědní obor RIV BJ - Termodynamika CEP LQ1601 GA MŠMT - Ministerstvo školství, mládeže a tělovýchovy Institucionální podpora UFM-A - RVO:68081723 UT WOS 000391251200223 EID SCOPUS 85010723623 Anotace Hydrogen solved in amorphous alloys (AAs) influences their magnetic characteristics. AAs are also perspective
as additives that can improve hydrogen storage kinetic in certain types of ball-milled hydrogen storage
materials (HSMs). Therefore, knowledge of hydrogen solubility and hydrogen sorption kinetics in AAs are of a
great importance for aimed design both AAs with optimal magnetic parameters and HSMs with desired sorption
characteristics. In the present paper, amorphous alloy Co30Fe55B15 (an example of the type a-TM1xTM2y Bz ;
TM - transition metal) was investigated. Hydrogen concentration c H was measured by Sieverts method in
temperature interval from T = 150 °C to T = 350 °C under hydrogen pressure p up to 6 MPa. It was found that
c H was an increasing function of p and its maximum value was typically 0.5 wt.% H2 at 350 °C and 6 MPa.
However, when the alloy was preliminary hydrogen charged (PHC), the pressure dependence of total c Htot in
the first absorption cycle(s) is non-monotonous in dependence on PHC conditions. For the sake of comparison,
the same absorption characteristics were measured also in Mg2Ni intermetallic that is a common constituent
in Mg-based HSMs. Comparing Co30Fe55B15 and Mg2Ni, it was concluded that Co30Fe55B15 shows lower
hydrogen solubility, but much better absorption kinetics.Pracoviště Ústav fyziky materiálu Kontakt Yvonna Šrámková, sramkova@ipm.cz, Tel.: 532 290 485 Rok sběru 2017
Počet záznamů: 1