CHEMICAL METHOD FOR PRODUCING NICKEL PHOSPHIDE MODIFIED WITH VARIOUS COMPOUNDS

Abstract

The article presents a chemical method for producing Nickel phosphide modified by various mixtures. The technology of metal coating on the surface of powder carborundum is developed. In addition, a chemical Nickel plating process was used for this purpose. Carborundum can contribute to the reduction of Nickel ions, even if it is not among the catalysts of this process. It is assumed that the high-temperature decomposition of the hyposphite ion causes the evolution of hydrogen on the surface of carborundum with a delayed stage due to the recombination of hydrogen atoms in the molecule. The high reactivity of hydrogen atoms leads to a decrease in Nickel ions. This makes it possible to activate the surface of the carborundum and grow the metal in conditions typical for further chemical Nickel plating. The experiments are investigated in an electron microscope by scanning the surface of the powder showed that the mechanism of activation of the surface of the powder valid. Tests of this technology in the laboratory allowed to obtain a coating containing 95% of chemical Nickel, which has the necessary adhesion to the details of carborundum.

References

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