Phase stability and neutron diffraction studies of the laves phase compounds Zr(Cr1−xMox)2 with 0.0≤x≤0.5 and their hydrides

Laves phase compounds Zr(Cr1−xMox)2 with 0.0≤x≤0.5 were synthesized with the hexagonal C14 and/or cubic C15 type structures. By using X-ray and neutron powder diffraction the structure of the alloys were determined, and in particular the sites for the 3 d metal substitution. The pressure composition (P–C) isotherms were determined over the temperature range 293–453 K. The effect of the M/Cr substitution was studied with regards to the alloys and hydrides stability and the maximum hydrogen content.