Science and Technology of Advanced Materials · 2003 · 40 citations · 11 references
Natural SciencesMaterials EngineeringMaterials ScienceCrystal StructurePhase TransformationsSolid-state ChemistryAlloysEnergy Storage MaterialsHydrogen AtomMetalsPhase ChangePhase DiagramsBody-centered Cubic LatticeFace-centered Cubic StructureHydrogen Energy StorageLaves PhasesStorage CapacityTetrahedral CoordinationTetrahedral ElementsX-ray Diffraction Analysis
To develop a new alloy with high hydrogen storage capacity, partial Cr in TiCr1.8 was substituted by V—Fe alloy. X-ray diffraction and metallography observation proved that the substitution did not change the phase constitution of TiCr1.2(V–F)0.6. It still remained in its initial Laves phase related body centred cubic structure. Pressure–composition—temperature tests showed that the hydrogen storage capacity could reach up to 3.2 wt% and its reversible capacity to about 2.0 wt%. TG-DSC tests showed that there are two kinds of tetrahedral site for hydrogen atoms to locate.
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Hydrogen absorption by Laves phase related BCC solid solution
Etsuo Akiba, Hideki Iba · Intermetallics · 1998 · 497 citations