COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL

Introduced: September 1968

Last revised: January 1985

Classification Context

Section:: CHEMISTRY; METALLURGY
Class:: COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
Subclass:: COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL

Description

C23C encompasses surface treatment and coating technologies for metals and metallic materials, including electroplating, electroless plating, and diffusion-based hardening processes such as carburizing and nitriding. It covers advanced vacuum-based deposition methods including physical vapor deposition (sputtering, evaporation), chemical vapor deposition (CVD), and ion implantation for creating protective or functional coatings. The subclass also includes chemical conversion treatments that modify surface properties through oxidation or other chemical reactions, as well as corrosion inhibition techniques and methods to prevent incrustation. This classification excludes treatment of non-metallic substrates with metallic coatings (covered in C23D) and focuses specifically on metallic base materials and their surface enhancement.

Scope Notes

Glossary: metallic material metallic materials metals; alloys which are metallic composite materials containing a substantial proportion of fibers or other somewhat larger particles; alloys which are ceramic compositions containing free metal used as a binder for 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. | Limiting references: Making metal-coated products by extrusion Covering with metal by connecting pre-existing layers to articles , Metallizing of glass Metallizing mortars, concrete, artificial stone, ceramics or natural stone Enameling of, or applying a vitreous layer to, metals Treating metal surfaces or coating of metals by electrolysis or electrophoresis Single-crystal film growth Metallizing textiles Decorating textiles by locally metallizing

Related Keywords

CLADDING materials with metalsCOATING metalCOATING with metalscoating of METAL(S)coating with METAL(S)vapour-deposition of METAL(S)METALLISING textilesforming coloured coatings on SURFACE(S) chemicallyforming non-metallic coatings on SURFACE(S) chemicallypassivating SURFACE(S) chemicallytreatment of metal SURFACE(S)

15 direct subcodes

Child Classifications

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C23C 10/00 Solid state diffusion of only metal elements or silicon into metallic material surfaces
C23C 12/00 Solid state diffusion of at least one non-metal element other than silicon and at least one metal element or silicon into metallic material surfaces
C23C 14/00 Coating by vacuum evaporation, by sputtering or by ion implantation of the coating forming material
C23C 16/00 Chemical coating by decomposition of gaseous compounds, without leaving reaction products of surface material in the coating, i.e. chemical vapour deposition [CVD] processes
C23C 18/00 Chemical coating by decomposition of either liquid compounds or solutions of the coating forming compounds, without leaving reaction products of surface material in the coating; Contact plating
C23C 2/00 Hot-dipping or immersion processes for applying the coating material in the molten state without affecting the shape; Apparatus therefor
C23C 20/00 Chemical coating by decomposition of either solid compounds or suspensions of the coating forming compounds, without leaving reaction products of surface material in the coating
C23C 22/00 Chemical surface treatment of metallic material by reaction of the surface with a reactive liquid, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
C23C 24/00 Coating starting from inorganic powder
C23C 26/00 Coating not provided for in groups
C23C 28/00 Coating for obtaining at least two superposed coatings either by methods not provided for in a single one of main groups , or by combinations of methods provided for in subclasses and
C23C 30/00 Coating with metallic material characterised only by the composition of the metallic material, i.e. not characterised by the coating process
C23C 4/00 Coating by spraying the coating material in the molten state, e.g. by flame, plasma or electric discharge
C23C 6/00 Coating by casting molten material on the substrate
C23C 8/00 Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals