Gast ::
| Hauptseite > Publikationsdatenbank > Application of Optical Emission Spectroscopy for Diagnostics of SPS and PS-PVD |
| Hauptseite > Publikationsdatenbank > Application of Optical Emission Spectroscopy for Diagnostics of SPS and PS-PVD |
| Contribution to a conference proceedings | FZJ-2015-01746 |
;
2015
Abstract: Emerging new applications and growing demands of plasma sprayed coatings have initiated the development of new plasma spray processes. One of them is plasma spraying-physical vapor deposition (PS-PVD) filling the gap between conventional liquid splat deposition and vapor deposition methods like electron beam-physical vapor deposition (EB-PVD). A second novel process is suspension plasma spraying (SPS) enabling the processing of submicron-sized feedstock by injecting suspensions into the plasma jet. Both of these processes allow obtaining particular microstructures which are not available by conventional atmospheric plasma spraying (APS). They can be very thin and dense layers as well as segmented or columnar structured highly porous coatings.To exploit these potentials, the plasma characteristics and the plasma-feedstock interaction must be understood better. Hence, plasma conditions at PS-PVD and SPS were studied by optical emission spectroscopy (OES). Decomposition and evaporation of feedstock material were investigated as well, since particular difficulties can occur with respect to stoichiometry and phase composition of the deposits. Some experimental examples are given to demonstrate the applicability of OES.
|
The record appears in these collections: |