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Ti0.488Fe0.460Mn0.052 TiFe-based hydrogen storage alloy

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The Ti0.488Fe0.460Mn0.052 alloy is a TiFe-based intermetallic material engineered for reversible hydrogen storage, produced here by gas atomization to obtain a fine powder microstructure that supports improved first hydrogenation kinetics and capacity after mechanical activation.[1][2] It belongs to the class of interstitial metal hydrides, where hydrogen atoms occupy lattice sites in the TiFe matrix and associated secondary phases, enabling absorption of about 1.5–2 wt.% hydrogen under moderate conditions depending on processing.[2]

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UQTR and GKN Hoeganaes show that mechanical treatments can activate gas-atomized Ti0.488Fe0.460Mn0.052 alloy for room-temperature hydrogen storage, cutting energy costs.

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