Coated razor blades comprising graphene
A hard coating for a substrate or portion of a razor blade wherein a main layer of the hard coating includes graphene and/or any combination of derivatives thereof. The graphene may be deposited on the substrate or portion of the razor blade using plasma assisted chemical vapor deposition (PECVD) or similar process.
1. A method for coating a razor blade comprising:
introducing the blade to a reduced atmosphere chamber; exposing the blade to RF plasma;
subjecting the blade to a carbon precursor;
depositing one or more graphene or graphene-based materials onto the blade;
forming a coating on the blade wherein the coating includes one or more discrete layers, including an interlayer, a main layer, and an overcoat layer; and
wherein in the main layer includes a graphene, graphene-based material, or any material that is a derivative of graphene.
2. The method of claim 1 , wherein after the step of exposing the blade to RF plasma, the method further comprising:
heating the blade to a temperature of at least 200° C. but to no more than 800° C.
3. The method of claim 2 , wherein the graphene or graphene-based materials are selected from the group consisting of multi-layer graphene materials, nanocomposite materials, 2-D materials, van der Waals heterostructures, hybrid compounds, graphene oxides, and combinations thereof.
4. The method of claim 3 , wherein the multi-layer graphene materials are selected from the group consisting of graphite nanoplatelets, carbon nanotubes (CNTs), diamond-like carbon (DLC), graphite, graphite oxides, amorphous carbon, Bucky Balls, and combinations thereof.
5. The method of claim 3 , wherein the 2-D materials are selected from the group consisting of graphene, boron nitride (BN), tungsten (IV) sulfide (WS2), and molybdenum disulfide (MoS2).
6. The method of claim 4 , wherein the multi-layer graphene materials include materials selected from the group consisting of a metal, ceramic, oxide, nitride and boride.
7. The method of claim 6 , wherein the metal is selected from the group consisting of Ti, Cr, Pt, Co, W, V, Nb, Mo, Ni, Al, Si, Hf, B, Zr, Cu and combinations thereof.