The thermal spraying process – where molten material is distributed over a substrate (or surface) – can take many forms, but the method of plasma spraying stands out as one of the most versatile and effective variations. But what sort of materials can you use with this method and why is it so effective?
Plasma Spraying
For those who are unfamiliar, spraying processes are used to apply layers of molten material onto other materials in order to strengthen them, reduce corrosion and provide additional benefits such as heat resistance or aesthetic flourishes.
Once molten particles are fired at the substrate, they rapidly cool and contract, forming a mechanical bond on the surface. A more thorough explanation of the process can be found here:
When using a plasma spray, higher temperatures can be reached more easily and efficiently, allowing for stronger materials to be applied to substrates. Plasma spraying is used for plenty of practices, ranging from dental implants to piston rings, and even diamond etching and engraving, making it a highly versatile process.
It’s worth noting that this method is also cost-effective, providing more efficient results than standard combustion counterparts for a lower price. Advice and services for plasma spraying can be found from specialists such as Poeton.
Materials
As mentioned earlier, the higher temperature that plasma spraying provides means that highly heat-resistant materials, that would not be melted with regular combustion, can be used.
Common examples include metals like zirconium and tungsten, which can provide greater resistance to heat, wear, and corrosion than other metals. They can also be used to reduce conductivity or provide water resistance, which can be invaluable for sectors like marine engineering or for making household appliances.
Of course, plasma spraying is not exclusively used for these tougher metals. It remains a highly effective option for more ubiquitous metals such as nickel and aluminium, along with ceramics for any non-metallic needs.
And now that plasma spraying is becoming more frequent, branching into other sectors like nuclear industries, biomedicine and aerospace, this process seems highly likely to pave the way for the future.
