COATING METALLIC MATERIAL

**Definition:** This place covers:

Hot-dipping or immersion processes and apparatus for applying the coating material in the molten state without affecting the shape.

Coating by spraying, casting, by vacuum evaporation, by sputtering or by ion implantation and the different aspects of chemical coating which includes

Chemical coating by decomposition of either gaseous compounds, liquid or solid compounds, solutions or suspensions of the coating forming compounds, without leaving reaction products of surface material in the coating.

Coating starting from inorganic powder.

Coating with metallic material characterized only by the composition of the metallic material.

Chemical surface treatment of metallic materials, leaving reaction products of surface material in the coating.

All coatings referred to in this subclass are either "for metallic materials" or "by metallic material," with the exception of PVD (by vacuum evaporation, by sputtering or by ion implantation), and CVD (an aspect included in "the different aspects of chemical coating").

Solid state diffusion into metallic material surfaces.

**Limiting references (this place does not cover):** - Making metal-coated products by extrusion -> B21C23/22 - Covering with metal by connecting pre-existing layers to articles -> B21D39/00 , B23K - Metallizing of glass -> C03C - Metallizing mortars, concrete, artificial stone, ceramics or natural stone -> C04B41/00 - Enameling of, or applying a vitreous layer to, metals -> C23D - Treating metal surfaces or coating of metals by electrolysis or electrophoresis -> C25D - Single-crystal film growth -> C30B - Metallizing textiles -> D06M11/83 - Decorating textiles by locally metallizing -> D06Q1/04

**Glossary:** - Metallic Material: covers: Metals; Alloys which are metallic composite materials containing a substantial proportion of fibers or other somewhat larger particles; ceramic compositions containing free metal bonded to carbides, diamond, oxides, borides, nitrides or silicides, e.g. cermets, or other metal compounds, e.g. oxynitrides or sulfides, other than as macroscopic reinforcing agents.