Spraying in a controlled atmosphere produces a coating that is thin, dense, oxide-free, and very pure. Because of these properties, applications include land-based and in-flight turbine components and medical implants. Commonly used materials include metals, ceramics, and cermets.

Process description

Controlled atmosphere plasma spraying (ChamPro) refers to coatings applied in a chamber, usually at near vacuum. It applies superior coatings characterized by high densities or very controlled porosities with extremely low contamination. With this method, we can achieve certain results not possible with any other thermal spray process, such as thin layers, ceramic structures, and the application of refractory metals.

Heat source Plasma Arc
Material Powder (Ceramics, Plastics, Metal)
Arc temperature Approx. 16,000 °C
Particle velocity 200 – 400 m/s
Spray performance 35 – 100 g/min



Key characteristics

Quickly produces thin, dense, full-coverage coatings
Capable of applying the full range of coating materials, including metals, ceramics, and cermets
Keeps the environment clean and safe as it’s a chambered process with full filtration package

Typical applications

Combustion chambers
Blades and vanes
Solid oxide fuel cells
Medical implants
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