The results of the experimental investigation of the coating microhardness and adhesion and cohesion strength during their formation using the proposed modified supersonic nozzle of the DYMET-405 cold spraying equipment and their comparison with the data obtained for the standard nozzle of the DYMET-405 machine are presented. Earlier, the authors hypothesized that it is possible to improve the characteristics of coatings by changing the nozzle channel’s geometry, which increases the powder particles’ impact temperature and velocity with the substrate. Metal-ceramic powder mixtures based on aluminum and nickel were chosen as the powder material. Spraying parameters did not change when applying coatings using modified and standard nozzles. The coatings were sprayed on samples of D16T aluminum alloy. The microhardness of coatings was studied according to ASTM E92 on prepared micrographs obtained by the standard method. Adhesion and cohesion strength of sprayed coatings were determined according to ASTMC 633. According to the results of the research, it was found that using a modified nozzle made it possible to increase microhardness as well as adhesion and cohesion strength of coatings from both powder mixtures. The presented results were obtained for the first time, which will enable the development of further recommendations to implement the proposed supersonic nozzle for spraying protective and restorative coatings with improved characteristics and lower cost.