Journal
MATERIALS SCIENCE AND ENGINEERING B-SOLID STATE MATERIALS FOR ADVANCED TECHNOLOGY
Volume 123, Issue 3, Pages 187-193Publisher
ELSEVIER SCIENCE SA
DOI: 10.1016/j.mseb.2005.07.016
Keywords
intermetallics; hydrogen gettering; induction melting; melt-spinning
Ask authors/readers for more resources
This study is focused on the development of a hydrogen absorbing Zr2Fe layer in the outer shell of high pressure (70 MPa) hydrogen storage tanks. This layer aims to absorb hydrogen coming from micro-cracks, as those formed by hydrogen embrittlement of the aluminium liner. A multi-phased Zr2Fe alloy prepared by induction melting presents a very fast absorption kinetic and a maximum absorption capacity of about 1.8 wt.%. The volume expansion upon hydrogen absorption reaches 19% and is very anisotropic. The good resistance to contamination of the Zr2Fe alloy is also demonstrated, since the absorption kinetic remains very fast after heating in air at 150 degrees C with the carbon fiber-epoxy resin composite used for the reinforcement of the high pressure storage vessel. Moreover, Zr2Fe ribbons can be prepared by melt-spinning. An annealing treatment above the recrystallization temperature of the amorphous phase (around 410 degrees C) is needed to obtain hydrogen absorption rate similar to that of induction-melted Zr2Fe alloy. However, the annealing leads to the limitation of the hydrogen capacity to 1.2 wt.%, due to the occurrence of an absorption-disproportionation phenomenon. (c) 2005 Elsevier B.V. All rights reserved.
Authors
I am an author on this paper
Click your name to claim this paper and add it to your profile.
Reviews
Recommended
No Data Available