Controlled Atmosphere Plasma Spray and Cold Spray for High Purity Metal Deposits
Air Plasma Spraying of metal powder typically results in deleterious effects with regards to the purity of the feedstock material, with partial oxidation and/or chemical uptake altering the properties and composition of the deposited films. With the use of Controlled Atmosphere Plasma Spray (CAPS), coatings can be made in medium vacuum or inert gas environments, allowing the purity of the feedstock to be largely preserved during processing. Alternatively, Cold Spraying can also be used for ductile materials since processing temperatures are typically well below the oxidation point of the sprayed material.
This presentation will focus on the use of CAPS and Cold Spray processing for metallic deposits, particularly refractory metals, where the effect of processing methods on the chemical and phase composition of sprayed materials will be discussed and compared to other deposition processes.
SAND2018-10888 A
Sandia National Laboratories is a multimission laboratory managed and operated by National Technology and Engineering Solutions of Sandia, LLC., a wholly owned subsidiary of Honeywell International, Inc., for the U.S. Department of Energy’s National Nuclear Security Administration under contract DE-NA-0003525.