Development of multicomponent Ti-Zr-Nb-Hf getters: Effect of Ta on structure and sorption properties
In this work, Ti 25 Zr 25 Nb 25 Hf 25 and Ti 20 Zr 20 Nb 20 Hf 20 Ta 20 powders were obtained by the calciothermic reduction of oxide mixtures at 1200°C, and the structure and hydrogen properties were investigated. Tantalum has a negative effect, preventing the formation of a homogeneous structure, while the Ta-free alloy tends to form a single BCC phase. The TiZrHfNb powder, with its homogeneous structure, exhibits faster absorption kinetics up to 0.5 wt% H 2 and a higher hydrogen capacity of 1.93 wt% (H/M = 1.98). Our results indicate that homogeneous structure is crucial for enhanced sorption properties.
Authors
- S. N. Yudin (ORCID: https://orcid.org/0000-0002-0531-002X)
- S. N. Klyamkin (ORCID: https://orcid.org/0000-0001-6009-1045)
- Sergey Volodko (ORCID: https://orcid.org/0000-0001-6309-8218)
- Elena Berdonosova (ORCID: https://orcid.org/0000-0002-4580-9749)
- I. Savvotin
- Valentin Romanovski (ORCID: https://orcid.org/0000-0003-1741-0316)
- Dmitry Moskovskikh (ORCID: https://orcid.org/0000-0001-5168-4885)
Institutions
- Lomonosov Moscow State University (RU)
- University of Virginia (US)
- Moscow Polytechnic University (RU)
Publication Details
- Journal
- Materials Science and Technology
- Published
- 2025-03-23
- DOI
- https://doi.org/10.1177/02670836251323822
- Citations
- 2
- Primary Topic
- Metal and Thin Film Mechanics
- Type
- article
- Field-Weighted Citation Impact
- 1.73
Funders
- Ministry of Science and Higher Education of the Russian Federation