Gas that has been heated to a temperature that permits ionisation and is able to conduct electricity is called plasma.
Many people favour plasma spray over other thermal spray processes as it permits a coat of most other substances to be placed on to a wide range of substrates.
It does this using a mix of high temperatures, high energy heat sources, a fairly inert spraying medium compared to other methods and high particle velocity. Utilising plasma spraying techniques creates unbeatable bond strength whilst ensuring that any distortion of the substrate material is as small as possible.
Key benefits of thermal plasma spray are:
– Thickness is usually between 0.2mm and 2mm.
– The bond strength you can expect is in excess of 80 MPa, subject to the type of coating you decide to use.
– It accepts a wide powder particle size, usually between 5µm to 100µm, …