Abstract
Ti-V-Mn based alloys, consisting mainly of the hexagonal C14 Laves and BCC phases, with nominal compositions of Ti0.5V0.4TM0.1Mn, where TM = Nb, Cr, Mo, Ta and Ti0.5V0.5-xNbxMn, where x = 0.05 and 0.2, were synthesised by arc melting. It was found that small amounts of Nb substituted for V (x = 0.05 and 0.1) resulted in smaller hysteresis between absorption and desorption as well as higher hydrogen dissociation pressures, compared to Ti0.5V0.5Mn. These findings show that Ti0.5-V0.45-Nb0.05-Mn is a suitable alloy to be used in a metal hydride compressor to deliver a pressure of 650 bar in the temperature range 303-473 K.
Original language | English |
---|---|
Pages (from-to) | S400-S403 |
Number of pages | 4 |
Journal | Journal of Alloys and Compounds |
Volume | 645 |
Issue number | Supp 1 |
Early online date | 23 Dec 2014 |
DOIs | |
Publication status | Published - 5 Oct 2015 |
Event | 14th International Symposium on Metal-Hydrogen Systems: Fundamentals and Applications, 2014 (MH2014) - Manchester, United Kingdom Duration: 20 Jul 2014 → 25 Jul 2014 |
Bibliographical note
Funding Information:The authors acknowledge support from the EPSRC SUPERGEN UK-SHEC (EP/E040071/1), EPSRC SCRATCH (EP/E034888/1) and AWM Birmingham Science City Hydrogen Energy projects. The authors are grateful to Mr Andrew Bradshaw for technical support.
Publisher Copyright:
© 2015 Elsevier B.V. All rights reserved.
Copyright:
Copyright 2015 Elsevier B.V., All rights reserved.
Keywords
- Hydrogen absorption-desorption
- Hydrogen compression
- Metal hydride hydrogen compressor
- Ti-V-Mn based alloys
- X-ray diffraction
ASJC Scopus subject areas
- Mechanics of Materials
- Mechanical Engineering
- Metals and Alloys
- Materials Chemistry