Synthesis, characterization and hydrogen sorption properties of a Body Centered Cubic 42Ti–21V–37Cr alloy doped with Zr7Ni10
Language
en
Article de revue
This item was published in
Journal of Alloys and Compounds. 2015, vol. 620, p. 101-108
Elsevier
English Abstract
The morphology, crystal structure, and hydrogenation properties of the alloy 42Ti–21V–37Cr doped with 4 wt.% of Zr7Ni10 were investigated. Two doping schemes were used: (i) a single melt method, where all the components ...Read more >
The morphology, crystal structure, and hydrogenation properties of the alloy 42Ti–21V–37Cr doped with 4 wt.% of Zr7Ni10 were investigated. Two doping schemes were used: (i) a single melt method, where all the components were melted together; (ii) a co-melt method where 42Ti–21V–37Cr alloy and Zr7Ni10 were first melted separately and thereafter re-melted together. The single melt alloy was a multi-phase compound, made of two intergranular phases within a Ti-, V-, Cr-rich matrix. One intergranular phase was Ti-, Zr-, Ni-rich and the other one Ti-rich. The co-melt alloy was a two phase material; a Ti-, V-, Cr-rich matrix and an homogeneously distributed Ti-, Zr-, Ni-rich intergranular phase.Both single melt and co-melt samples have a faster and more complete first hydrogenation (activation) than the undoped 42Ti–21V–37Cr. Activation is complete in less than 3 min for both doped alloys and their thermodynamics parameters are similar.Read less <
English Keywords
Hydrogen storage
Metal hydrides
BCC alloys
Zr7Ni10
Origin
Hal imported