Plasma electrode-type plasma spray gun—effect of powder loading on the behavior of plasma jet

Hydroxyapatite Coating Using DC Plasma Jet

“…So far, we have reported the experimental results on the preparation of Ti-Al FGC, 00 -aluminum film and MgO coatings. [5][6][7] On the basis of those results, [5][6][7] we hypothesize that dense spray coatings can be prepared under suitable combinations of jet power, ambient pressure and powder conditions. First of all, in this study, we have tried spraying films of FGC and high bond strength under a low jet power condition.…”

Production of fine hydroxyapatite films using the well-controlled thermal plasma

“…So far, we have reported the experimental results on preparation of Ti-Al FGC, β"-alumina film synthesis and of MgO coatings with using this device [3,4,5].…”

Characterization of plasma sprayed deposits : influence of process parameters

“…Difference in the microstructure of YSZ coatings related to the anode exit shape of used plasma torch (Laval-like contour and cylinder) was investigated in [19]. Influence of carrier gas axial feeding on the plasma axial and radial temperature distributions was observed in [17].…”

“…Secondly, depending on the type of powder, the evaporated fraction of the particles diffuses in the plasma gas, and can drastically change its thermodynamics and transport properties. It has been shown that plasma temperature and velocity may drop significantly already for powder mass flow rates in the order of one third of the plasma gas mass flow [27], [28], [33], [34], [35], [36], [39].…”

“…It is deemed that U phase is a splat boundary phase. From the reported experimental results it follows that U phase appears The weight fractions of alpha alumina phase in plasma sprayed coatings were determined using formula (17) and are listed in Table 25. Peak broadening around 20 of 46 in XRD spectra of coatings prepared under spray parameter sets 2 and 3 can be observed.…”