Coating Methods

Ceramic coatings may be applied by brushing, spraying, dipping, flow coating, combustion flame spraying, plasma-arc flame spraying, detonation gun spraying, pack cementation, fluidized-bed deposition, vapor streaming, troweling, and electrophoresis. Most of these methods have been used for coating production parts.

Selection of coating method depends on the following factors:

• Substrate metal

• Coating material (some materials are restricted as to method of application)

• Size and shape of the part to be coated

• Service conditions (coating method can modify the properties of the coating)

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