The structure of the pseudo-binary mercury chalcogenide alloy HgSe0.7S0.3 has been studied by means of X-ray and neutron powder diffraction at pressures up to 8.5 GPa. A phase transition from the cubic zinc blende structure to the hexagonal cinnabar structure was observed at P ∼ 1 GPa. A phenomenological model of this reconstructive phase transition based on the displacement mechanism is propos...

The structure of the pseudo-binary mercury chalcogenide alloy HgSe0.7S0.3 has been studied by X-ray and neutron powder diffraction at pressures up to 8.5 GPa. A phase transition from the cubic zinc blende structure to the hexagonal cinnabar structure was observed at P ∼ 1 GPa. A phenomenological model of this reconstructive phase transition based on a displacement mechanism is proposed. Analysi...

Electrodeposited zinc and zinc-alloy coatings have been extensively used in a wide variety of applications such as transport, automotive, marine, aerospace owing to their good corrosion resistance the potential be economically competitive. As consequence, these become industry choice for many protect carbon low alloy steels against degradation upon exposure different corrosive environments indu...

A need t o find a suitable replacement for cadmium electroplated coatings on mediumto highstrength steels has accelerated the development of economically viable alternatives. This edited version of a presentation at the 30th annual AerospaceIAirline Plating & Metal Finishing Forum examines the development of Australia's Defence Science and Technology Organisation's (DSTO) zinc-nickel electropla...

Closeness of electrochemical properties uranium and zirconium makes separation these metals in pyroelectrochemical reprocessing spent nuclear fuels a challenging task. Varying electrode material can change metals’ deposition potentials. The study was aimed at assessing the effect cathode on potentials from 3LiCl–2KCl based melts. Solid (tungsten) liquid (gallium, zinc, Ga–Zn, Ga–Sn Ga–In alloy)...

Linear sweep voltammetry has been used as an “in situ” technique to characterize thin layers of ZnNi alloys. The zinc dissolution peak potentials from ZnNi deposits were found to be more noble [El,= -0.7V (SCE) and Ez,= -0.575 V (SCE)] than those of the pure metal ions [-OX3 V (SCE)] due to a formation of two ZnNi intermediate phases 7 and 6 respectively. The effect of d c and pulse parameters ...