Hydrogen storage in Ti-based metal hydrides investigated by elastic recoil detection analysis (ERDA)

Effect of the annealing atmosphere on the layer interdiffusion in Pd/Ti/Pd multilayer stacks deposited on pure Ti and Ti-alloy substrates

“…Furthermore Fujimoto at al [15] studied the phases formed during hydrogenation of Ti-Pd multilayer at 623 K under vacuum and they reported atomic interlayer mixing and solid state amorphization; however under pure hydrogen gas, they found that only TiH 2 phase was formed. This was supported by Topic at al [12] who concluded also on the TiH 2 formation upon annealing Ti-Pd layer stack deposited onto Ti substrate, at 550 °C.…”

“…When used for H storage, Ti and Ti6Al4V alloy have been reported to absorb up to 60 at.% H at 550 °C [6][7][8][9]. Many groups have found that the H absorption in Ti and Ti6Al4V systems reaches its optimum at around 550 °C [2,[10][11][12][13][14][15]. Furthermore Fujimoto at al [15] studied the phases formed during hydrogenation of Ti-Pd multilayer at 623 K under vacuum and they reported atomic interlayer mixing and solid state amorphization; however under pure hydrogen gas, they found that only TiH 2 phase was formed.…”