Recent Development of Plasma Spraying

Plasma spraying and characterization of chromium carbide – nickel chromium coatings

Chromium carbide – nickel chromium powder Cr3C2-25wt.NiCr was plasma sprayed by a water-stabilized system WSP®. A series of experiments with variable feeding distance was carried out. Basic characterization of coatings was done by XRD, SEM and light microscopy plus image analysis. Microhardness was measured on polished cross sections. The main focus of investigation was on resistances against w...

FriM01 Recent Development of Plasma-Optical Systems

This is the brief review of recent development and ongoing research of plasma optical systems based on the fundamental plasma optical idea magnetic electron isolation, equipotentialization magnetic field line and the axial-symmetric cylindrical electrostatic plasma lens (PL) configuration. The electrostatic PL is well-explored tool for focusing and manipulating large area, intense, positive lig...

Recent advances in controlling feline urine spraying

Cats are often thought to be the cleanest of companion animals so most owners find it distressing and unacceptable when their cat urinates inappropriately on the carpet or sprays the furniture. Elimination problems are the most common behavioural problem reported in cats, accounting for 40-75% of behavioural problems cats (Pryor et al., 2001; Seksel, 2000). While inappropriate elimination is no...

Solution and Suspension Plasma Spraying of Nanostructure Coatings

Air-plasma spraying colloidal solutions of nanosized ceramic powders

Coatings prepared from nanosized powders were obtained by spraying ethanol-based colloidal solutions into a plasma plume. The powders investigated included 40 nm γ -Al2O3, 75 nm 8 wt% Y2O3-ZrO2, and 750 nm 25 wt% CeO2-ZrO2. Spray distances from approximately 50 to 63 mm were required to achieve significant coating deposition. As observed in the TEM, the typical lamella morphology of air plasma ...