The main features of electrochemical deposition of coatings based on Ni–W binary alloy in the pulse current mode using pyrophosphate electrolytes were studied. Two electrolytes with a pH of 8.7 and 9.5 were used. The deposition was carried out with the current density varying in the range of 0.01–0.1 A·cm⁻², and the duty cycle (the relative pulse duration) was changed within the range 20–100%. The surface morphology and elemental and phase composition of the coatings were studied by scanning electron microscopy, energy-dispersive X-ray microanalysis and X-ray diffractometry. The experimental conditions allowing us to achieve the maximum Faradaic efficiency and W content in the coatings were determined. It was found that the pulse current mode enabled the fabrication of crack-free coatings with a thickness greater than 6 μm.

An analytical review of the modern state of the development of ion sources with solid electrolytes (superionic conductors) for the aerospace and ion-beam technologies is presented. The methods for...

Switching properties of contact coatings based on ruthenium nanofilms obtained by electrochemical deposition have been studied. The laws of variation of the contact resistance as a function of the...