Physical Properties of Ti<sub>45</sub>Zr<sub>38</sub>Fe<sub>17</sub> Alloy and Its Amorphous Hydride
The alloys based on Ti-Zr are considered an excellent candidate for hydrogen storage applications. In this communication, we report the results of Fe substitution for Ni in the well-known Ti<sub>45</sub>Zr<sub>38</sub>Ni<sub>17</sub> compound. The parent and relat...
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MDPI AG
2022-06-01
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| Online Access: | https://www.mdpi.com/1996-1073/15/12/4236 |
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| author | Antoni Żywczak Łukasz Gondek Joanna Czub Piotr Janusz Nivas Babu Selvaraj Akito Takasaki |
| author_facet | Antoni Żywczak Łukasz Gondek Joanna Czub Piotr Janusz Nivas Babu Selvaraj Akito Takasaki |
| author_sort | Antoni Żywczak |
| collection | DOAJ |
| description | The alloys based on Ti-Zr are considered an excellent candidate for hydrogen storage applications. In this communication, we report the results of Fe substitution for Ni in the well-known Ti<sub>45</sub>Zr<sub>38</sub>Ni<sub>17</sub> compound. The parent and related compounds can be obtained as amorphous powders, transforming into the quasicrystalline phase (i-phase) after annealing. The amorphous Ti<sub>45</sub>Zr<sub>38</sub>Fe<sub>17</sub> phase is transformed into the icosahedral quasicrystalline state, and it is a quasi-continuous process. The i-phase is well-developed close to 500 °C. At higher temperatures, the quasicrystal structure transforms into the other phase: the w-phase (an approximant to the crystalline phase) and another crystal phase with a small addition of the FeZr<sub>3</sub> and the Fe<sub>2</sub>(ZrTi)<sub>3</sub>. The amorphous Ti<sub>45</sub>Zr<sub>38</sub>Fe<sub>17</sub> phases can be hydrogenated while maintaining the amorphous nature, which constitutes another very fascinating research field for our group. The investigated alloy shows a good capacity for gaseous H<sub>2</sub> at level 2.54 wt.% at elevated temperatures. The ferromagnetic signal of the amorphous TiZrFe comes from magnetic nanocrystallites in the amorphous matrix. After heating, the magnetic signal significantly decreases due to the lack of long-range magnetic ordering in the i-phase of the Ti<sub>45</sub>Zr<sub>38</sub>Fe<sub>17</sub> alloy. |
| first_indexed | 2024-03-09T23:54:27Z |
| format | Article |
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| institution | Directory Open Access Journal |
| issn | 1996-1073 |
| language | English |
| last_indexed | 2024-03-09T23:54:27Z |
| publishDate | 2022-06-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Energies |
| spelling | doaj.art-509bf3da583b41f3b6b6a9686a244bd82023-11-23T16:27:51ZengMDPI AGEnergies1996-10732022-06-011512423610.3390/en15124236Physical Properties of Ti<sub>45</sub>Zr<sub>38</sub>Fe<sub>17</sub> Alloy and Its Amorphous HydrideAntoni Żywczak0Łukasz Gondek1Joanna Czub2Piotr Janusz3Nivas Babu Selvaraj4Akito Takasaki5Academic Centre for Materials and Nanotechnology, 30-059 Krakow, PolandFaculty of Physics and Applied Computer Science, AGH University of Science and Technology, 30-059 Krakow, PolandFaculty of Physics and Applied Computer Science, AGH University of Science and Technology, 30-059 Krakow, PolandFaculty of Drilling, Oil, and Gas, AGH University of Science and Technology, 30-059 Krakow, PolandCICECO, Department of Materials and Ceramic Engineering, University of Aveiro, 3810-193 Aveiro, PortugalDepartment of Engineering Science and Mechanics, Shibaura Institute of Technology, Toyosu, Kotoku, Tokyo 135-8548, JapanThe alloys based on Ti-Zr are considered an excellent candidate for hydrogen storage applications. In this communication, we report the results of Fe substitution for Ni in the well-known Ti<sub>45</sub>Zr<sub>38</sub>Ni<sub>17</sub> compound. The parent and related compounds can be obtained as amorphous powders, transforming into the quasicrystalline phase (i-phase) after annealing. The amorphous Ti<sub>45</sub>Zr<sub>38</sub>Fe<sub>17</sub> phase is transformed into the icosahedral quasicrystalline state, and it is a quasi-continuous process. The i-phase is well-developed close to 500 °C. At higher temperatures, the quasicrystal structure transforms into the other phase: the w-phase (an approximant to the crystalline phase) and another crystal phase with a small addition of the FeZr<sub>3</sub> and the Fe<sub>2</sub>(ZrTi)<sub>3</sub>. The amorphous Ti<sub>45</sub>Zr<sub>38</sub>Fe<sub>17</sub> phases can be hydrogenated while maintaining the amorphous nature, which constitutes another very fascinating research field for our group. The investigated alloy shows a good capacity for gaseous H<sub>2</sub> at level 2.54 wt.% at elevated temperatures. The ferromagnetic signal of the amorphous TiZrFe comes from magnetic nanocrystallites in the amorphous matrix. After heating, the magnetic signal significantly decreases due to the lack of long-range magnetic ordering in the i-phase of the Ti<sub>45</sub>Zr<sub>38</sub>Fe<sub>17</sub> alloy.https://www.mdpi.com/1996-1073/15/12/4236hydrogen-storage materialsamorphous alloysquasicrystalline alloysmagnetic propertiesneutron diffraction |
| spellingShingle | Antoni Żywczak Łukasz Gondek Joanna Czub Piotr Janusz Nivas Babu Selvaraj Akito Takasaki Physical Properties of Ti<sub>45</sub>Zr<sub>38</sub>Fe<sub>17</sub> Alloy and Its Amorphous Hydride Energies hydrogen-storage materials amorphous alloys quasicrystalline alloys magnetic properties neutron diffraction |
| title | Physical Properties of Ti<sub>45</sub>Zr<sub>38</sub>Fe<sub>17</sub> Alloy and Its Amorphous Hydride |
| title_full | Physical Properties of Ti<sub>45</sub>Zr<sub>38</sub>Fe<sub>17</sub> Alloy and Its Amorphous Hydride |
| title_fullStr | Physical Properties of Ti<sub>45</sub>Zr<sub>38</sub>Fe<sub>17</sub> Alloy and Its Amorphous Hydride |
| title_full_unstemmed | Physical Properties of Ti<sub>45</sub>Zr<sub>38</sub>Fe<sub>17</sub> Alloy and Its Amorphous Hydride |
| title_short | Physical Properties of Ti<sub>45</sub>Zr<sub>38</sub>Fe<sub>17</sub> Alloy and Its Amorphous Hydride |
| title_sort | physical properties of ti sub 45 sub zr sub 38 sub fe sub 17 sub alloy and its amorphous hydride |
| topic | hydrogen-storage materials amorphous alloys quasicrystalline alloys magnetic properties neutron diffraction |
| url | https://www.mdpi.com/1996-1073/15/12/4236 |
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