[5] Ni31Si12, Ni2Si, and NiSi have congruent melting points; the others form via a peritectic transformation.

[citation needed] The silicides can be made via fusion or solid state reaction between the elements, diffusion at a junction of the two elements, and other methods including ion beam mixing.

[citation needed] Nickel silicides are generally chemically and thermally stable.

[citation needed] Nickel silicides have potential as coatings for nickel-based superalloys and stainless steel, due to their corrosion, oxidation, and wear resistance.

[citation needed] NiSi has been investigated as a hydrogenation catalyst for unsaturated hydrocarbons.