Investigation of Process Stability and Effectiveness Using a Multi-Arc Spraying Torch with Axial Suspension Injection

Abstract This research establishes a foundation for enhancing suspension plasma spraying stability and efficiency. Building on previous work, we evaluated three gas mixtures using the Axial III torch with a consistent nozzle throat diameter. Our analysis focuses on in-flight particle measurements and coating performance for each gas mixture, while accounting for the plasma transport coefficients. Additionally, we recorded voltage and current measurements across all three cathode-anode units.