Thermal sprayed coatings are influenced by the wettabillity of the molten particles to substrates. The contact angles of several molten metal droplets are measured in air and vacuum. The flattening ratio is evaluated by taking into account of wettability. Comparing with the experimental data of the freefall droplet, it was concluded that the wettability to the roughened substrates influenced on the flattening characteristics.

flattening ratio, surface roughness, thermal sprayed coatings, wettabillity
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Copyright © 2003 ASM International. All rights reserved.
2003
ASM International
Topics
Thermal spray coatings Surface roughness Wettability
Issue Section:
Science and Applications of Thermal Spray
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