C - Chemistry – Metallurgy – 23 – C
Patent
C - Chemistry, Metallurgy
23
C
C23C 4/12 (2006.01) B01J 2/04 (2006.01) B05D 1/10 (2006.01) C04B 35/48 (2006.01) C04B 35/50 (2006.01) C04B 35/626 (2006.01) C23C 4/10 (2006.01)
Patent
CA 2601189
In the method for the manufacture of a coating (10) having a columnar structure, preferably a dense structure, a coating material in the form of primary corpuscles (1) is injected with a carrier gas into a thermal process beam. The coating material is transformed in the process beam into a vapour phase and is deposited as condensate in the form of a columnar coating on a substrate (100). The primary corpuscles are liquid droplets or they are formed in each case by an agglomerate of particles (2) which are held together by cohesive forces of a connecting medium or by adhesive forces. The liquid droplets include a chemical precursor of the coating material in the form of a salt solution and are transformed by thermal action in the process beam into secondary corpuscles containing particles (2). The primary or secondary corpuscles are disintegrated in the process beam by mechanical and thermal interaction. In this connection, the particles are dispersed so that coating material is vaporised fully or partly on the individual particles by thermal action.
Damani Rajiv J.
Refke Arno
Gowling Lafleur Henderson Llp
Sulzer Metco Ag
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