Multimaterial Solution Precursor Plasma Spraying with Hybrid Water-Stabilized Plasma Torch

Hybrid water/argon-stabilized plasma torch (WSP-H) has a great potential in solution precursor plasma spraying (SPPS) due to its high enthalpy and high achievable throughput. As the WSP-H torch provides unique combination of plasma properties unparalleled by conventional gas-stabilized plasma torches, this study is focused on the fundamental mechanisms taking place during the deposition of aluminium and chromium oxides from solution precursor feedstocks and their combinations. The deposition principles will be studied and optimized microstructure coatings will be evaluated from the perspective of phase composition and mechanical properties.