The list of international projects SAS
Institute of Materials Research
Strengthening and plasticity of high-entropy ultra-high temperature carbides
Spevnenie a plasticita vysokoentropických ultra vysokoteplotných karbidov
High performance duplex ceramics for efficient maschining of nickel superalloysd
Vysoko odolná duplexná keramika pre efektívne obrábasnie niklových superzliatin
Developoment and processing of advanced metal hydride composites with specific microstructure properties for mobile hydrogen storage applications
Vývoj a spracvovanie pokročilých metalhydidových kompozitných materiálov pre uskladnenie vodíka určených pre mobilné aplikácie
Development of Advanced Magnesium Alloys for Multifunctional Applications in Extreme Environments
Vývoj pokročilých horčíkových zliatin pre multifunkčné aplikácie v extrémnych prostrediach
Enhancement of Hydrogen Storage Properties of AlTiVCr Light Weight High Entropy Alloys (HEA) by Ti3C2 Mxene and Several Plastic Deformation
Zvýšenie uskladňovacej schopnosti vodíka v ľahkých vysoko-entropických zliatinách (HEA) typu AlTiVCr prídavkom Ti3C2 Mxenu a veľkej plastickej deformácie
| Duration: |
1.4.2022 - 31.3.2025 |
| Program: |
European Interest Group (EIG) CONCERT-Japan |
| Project leader: |
doc. Ing. Saksl Karel DrSc. |
| Annotation: | Recently discovered AlTiVCr high entropy alloy (HEA) exhibits about 70x increase in equilibrium pressure, ~20 kJ/mol H2 decrease in desorption enthalpy (ΔH) relative to the benchmark TiVZrNbHf HEA possessing H/M ratio > 2 with 2.7 wt % hydrogens at 53 bar H2. The AlTiVCr HEA desorption enthalpy ΔH is ~40 kJ/mol and H/M ratio ~1. Since AlTiVCr alloy includes lighter-weight elements relative to earlier studied refractory HEAs, it is envisaged that AlTiVCr can be a potential lightweight metal hydride for future hydrogen storage application if its H/m ratio and hydrogenation/dehydrogenation kinetics can be improved. So far, the addition of Mxene (Ti3C2) as catalyst and nanosizing exhibited a significant influence on the kinetics and hydrogenation capacity of Mg metal hydrides independently. Therefore, in this study, we aim to develop a lightweight metal hydride composite of AlTiVCr HEA by the combination of three concepts of HEA, Mxenes (Ti3C2 Mxene) and nanosizing by high-pressure torsion (HPT). The influence of Mxene and deformation heterogeneities will be investigated and will be tailored for achieving lower ΔH, higher H/M ratio and faster kinetics. |
The total number of projects: 5
