High-velocity oxygen-fuel spray

High-velocity oxygen-fuel spray (HVOF), CS and PTS methods are possible deposition methods to apply such coatings. PTS utilizes high heating and laige... 

Figure 10.25 Thermal spray gims for a) arc spra3ring, b) flame spraying with wire, c) plasma spraying, and d) high-velocity oxygen fuel (HVOF) spraying (the most common method of high-velocity flame spraying).

The contouring of a BC structure with a laser, the application of high-velocity oxygen fuel (HVOF) spray compared to CVD, the prealuminization of BC material, and the inclusion of CVD-AI2O3 between TC and BC have all been suggested to dimmish the rate of oxidation. 

Figure 14.13 High-velocity oxygen fuel thermal spray process. (Courtesy of M. Gariepy, WEIR Engineering Services, Montreal, Canada)...

Thermal spray processing A coating process where material (wire, rod, powder) is melted by a flame, plasma, electric arc, or some other means and the molten particles are propelled in a high velocity gas stream to the substrate surface, where they are splat cooled at a high quench rate. See also Arc-wire spray Detonation flame spraying Flame spray High velocity oxygen fuel (HVOF) spray Plasma spray. 

Li C J, Li W Y, Effect of sprayed powder particle size on the oxidation behavior of MCrAlY materials during high velocity oxygen-fuel deposition . Surf Coat Technol, 2003, 162(1), 31 1... 

For gas combustion processes, the lower-energy flame spray process uses oxyfuel combustible gas as a heat source to melt the coating material, which may be in the form of rod, wire, or powder. In the higher-energy, high-velocity oxyfuel combustion spray (HVOF) technique, internal combustion of oxygen and fuel gas occurs to produce a high-velocity plume... 

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