Suspension plasma spray

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In materials engineering, suspension plasma spray (SPS) is a form of plasma spraying where the ceramic feedstock is dispersed in a liquid suspension before being injected into the plasma jet.

By suspending powder in a fluid, normal feeding problems are circumvented, allowing the deposition of finer microstructures through the use of finer powders. See [1] for a detailed review of the technology.


  1. ^ Pierre Fauchais, Vincent Rat, Cedric Delbos, Jean Francois Coudert, Thierry Chartier and Luc Bianchi, Understanding of Suspension DC Plasma Spraying of Finely Structured Coatings for SOFC, IEE Transactions on Plasma Science, April 2005, 33(2), p 920-930