Low friction coating
AssigneeGencoa Ltd.
InventorVictor Bellido-Gonzalez
Life of this patent
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Abstract
Disclosed is a metal sulphide coating composition of the formula MXSiVRYSZFW where M is one or more metals selected from: Mo, Ti, W, Nb, Ta, Zr, and Hf; Si is silicon; R is one or more elements selected from: C, B, Al, V, Cr, Fe, Co, Ni, Sm, Au, Cu, Zn, Sn, Pb, N, H, and O; S is sulphur; F is fluorine; X is 0.2 to 1.5; V is 0.02 to 3; Y is 0 to 4; Z is 0.2 to 6; and W is 0.01 to 6, and in which X, Y, Z, V, and W are given in amounts by atomic ratio. The compositions show good non-stick properties, low hydrophilia, and high stability.
Claims25
A coating composition, comprising:
- a metal sulphide, silicon and fluorine wherein the metal is selected from the group consisting of Nb, Zr, Hf, and combinations.
A metal sulphide coating composition, comprising
- MxSivRySzFw
- wherein M is a metal selected from the group consisting of Mo, Ti, W, Nb, Ta, Zr, Hf and mixtures thereof
- Si is silicon;
- R is selected from the group consisting of C, B, Al, V, Cr, Fe, Go, Ni, Sm, Au, Cu, Zn, Sn, Pb, N, H, O and mixtures thereof
- S is sulphur;
- F is fluorine;
- x is 0.2 to 1.5;
- v is 0.02 to 3;
- y is 0 to 4;
- z is 0.2 to 6;
- and
- w is 0.01 to 6, wherein x, y, z, v and ware given in amounts by atomic ratio.
A method for depositing a metal sulphide coating onto a substrate by a vacuum ion or plasma technique, comprising:
- providing silicon and fluorine, or precursors thereof, into a deposition unit;
- and
- depositing a metal sulphide in the presence of silicon and fluorine onto the substrate to form a metal sulphide coating comprising a metal sulphide, silicon, and fluorine.
Dependencies are inferred from the claim text.