Hydrogen Sorption Behavior of Cast Ag-Mg Alloys
In this paper, the hydrogen sorption properties of casted Ag-Mg alloys were investigated. The obtained alloys were structurally analyzed by X-ray diffraction (XRD) and observed by scanning electron microscopy (SEM). The study was carried out for four alloys from the two-phase region (Mg) + γ′ (AgMg&...
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| Online Access: | https://www.mdpi.com/1996-1944/15/1/270 |
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| author | Adam Dębski Sylwia Terlicka Anna Sypien Władysław Gąsior Magda Pęska Marek Polański |
| author_facet | Adam Dębski Sylwia Terlicka Anna Sypien Władysław Gąsior Magda Pęska Marek Polański |
| author_sort | Adam Dębski |
| collection | DOAJ |
| description | In this paper, the hydrogen sorption properties of casted Ag-Mg alloys were investigated. The obtained alloys were structurally analyzed by X-ray diffraction (XRD) and observed by scanning electron microscopy (SEM). The study was carried out for four alloys from the two-phase region (Mg) + γ′ (AgMg<sub>4</sub>) with nominal concentrations of 5 wt. %, 10 wt. %, 15 wt. %, and 20 wt. % Ag, four alloys with nominal compositions equivalent to intermetallic phases: AgMg<sub>4</sub>, AgMg<sub>3</sub>, AgMg, and Ag<sub>3</sub>Mg, one alloy from the two-phase region AgMg + Ag<sub>3</sub>Mg (Ag60Mg40), and one alloy from the two-phase region AgMg + AgMg<sub>3</sub> (Ag40Mg60). The hydrogenation process was performed using a Sievert-type sorption analyzer. The hydride decomposition temperature and kinetic properties of the synthesized hydrides were investigated by differential scanning calorimetry (DSC) coupled with thermogravimetric analysis (TGA). Samples with high magnesium content were found to readily absorb significant amounts of hydrogen, while hydrogen absorption was not observed for samples with silver concentrations higher than 50 at. % (AgMg intermetallic phase). |
| first_indexed | 2024-03-10T03:33:59Z |
| format | Article |
| id | doaj.art-9ae372f5d00046d5a8228b847f161825 |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T03:33:59Z |
| publishDate | 2021-12-01 |
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| spelling | doaj.art-9ae372f5d00046d5a8228b847f1618252023-11-23T11:50:45ZengMDPI AGMaterials1996-19442021-12-0115127010.3390/ma15010270Hydrogen Sorption Behavior of Cast Ag-Mg AlloysAdam Dębski0Sylwia Terlicka1Anna Sypien2Władysław Gąsior3Magda Pęska4Marek Polański5Institute of Metallurgy and Materials Science, Polish Academy of Sciences, 25 Reymonta Street, 30-059 Kraków, PolandInstitute of Metallurgy and Materials Science, Polish Academy of Sciences, 25 Reymonta Street, 30-059 Kraków, PolandInstitute of Metallurgy and Materials Science, Polish Academy of Sciences, 25 Reymonta Street, 30-059 Kraków, PolandInstitute of Metallurgy and Materials Science, Polish Academy of Sciences, 25 Reymonta Street, 30-059 Kraków, PolandDepartment of Functional Materials and Hydrogen Technology, Military University of Technology, 2 Kaliskiego Street, 00-908 Warsaw, PolandDepartment of Functional Materials and Hydrogen Technology, Military University of Technology, 2 Kaliskiego Street, 00-908 Warsaw, PolandIn this paper, the hydrogen sorption properties of casted Ag-Mg alloys were investigated. The obtained alloys were structurally analyzed by X-ray diffraction (XRD) and observed by scanning electron microscopy (SEM). The study was carried out for four alloys from the two-phase region (Mg) + γ′ (AgMg<sub>4</sub>) with nominal concentrations of 5 wt. %, 10 wt. %, 15 wt. %, and 20 wt. % Ag, four alloys with nominal compositions equivalent to intermetallic phases: AgMg<sub>4</sub>, AgMg<sub>3</sub>, AgMg, and Ag<sub>3</sub>Mg, one alloy from the two-phase region AgMg + Ag<sub>3</sub>Mg (Ag60Mg40), and one alloy from the two-phase region AgMg + AgMg<sub>3</sub> (Ag40Mg60). The hydrogenation process was performed using a Sievert-type sorption analyzer. The hydride decomposition temperature and kinetic properties of the synthesized hydrides were investigated by differential scanning calorimetry (DSC) coupled with thermogravimetric analysis (TGA). Samples with high magnesium content were found to readily absorb significant amounts of hydrogen, while hydrogen absorption was not observed for samples with silver concentrations higher than 50 at. % (AgMg intermetallic phase).https://www.mdpi.com/1996-1944/15/1/270Ag-Mg alloyshydrogen storageDSC measurementsX-ray diffractionintermetallics |
| spellingShingle | Adam Dębski Sylwia Terlicka Anna Sypien Władysław Gąsior Magda Pęska Marek Polański Hydrogen Sorption Behavior of Cast Ag-Mg Alloys Materials Ag-Mg alloys hydrogen storage DSC measurements X-ray diffraction intermetallics |
| title | Hydrogen Sorption Behavior of Cast Ag-Mg Alloys |
| title_full | Hydrogen Sorption Behavior of Cast Ag-Mg Alloys |
| title_fullStr | Hydrogen Sorption Behavior of Cast Ag-Mg Alloys |
| title_full_unstemmed | Hydrogen Sorption Behavior of Cast Ag-Mg Alloys |
| title_short | Hydrogen Sorption Behavior of Cast Ag-Mg Alloys |
| title_sort | hydrogen sorption behavior of cast ag mg alloys |
| topic | Ag-Mg alloys hydrogen storage DSC measurements X-ray diffraction intermetallics |
| url | https://www.mdpi.com/1996-1944/15/1/270 |
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