Effect of Zr content on mechanical properties of Ti–Ni–Zr shape memory alloy films prepared by dc magnetron sputtering

Amorphous hydrides of the Ti45Zr38Ni17−xCox nano-powders

“…The synthesized Ti 45 Zr 38 Ni (13,9) Co (4,8) samples behave similarly to the parent compound, i.e. the Ti 45 Zr 38 Ni 17 .…”

“…Fig. 4 shows the TDS spectra of a hydrogen release for the hydrogenated Ti 45 Zr 38 Ni (13,9) Co (4,8) H x amorphous samples. Both spectra consist of three main peaks, but one of them is observed at lower temperatures.…”

“…Commercially available titanium (99.9%), zirconium (99.9%), nickel (99.9%) and cobalt (99.9%) powders were used as starting materials. A mixture of the starting elements corresponding to a chemical composition of the Ti 45 Zr 38 Ni (9,13) Co (8,4) was placed in stainless steel vials (45 ml), which contained stainless steel balls (14 mm in diameter). An initial mass of the powder mixture before MA was 8.5 g with the ball-to-powder weight ratio equal to 8:1.…”

“…Hydrogenation of the Ti 45 Zr 38 Ni (13,9) Co (4,8) amorphous samples leads to an irreversible structural transformation. The amorphous samples hydrogenated at elevated temperatures decompose into simple hydrides, while the amorphous deuterides release deuterium simultaneously with the transformation to an unknown crystal phase.…”

“…The TiZrNi compounds also are promising candidates for metal-hydride based batteries [7], protective coatings [8] and memory shape alloys [9].…”