Slurry composition for suspension plasma spraying, method for preparing the same and suspension plasma spray coating layer

• Main Authors: LEE, SUNG HOON, JEONG, JAE IM, BANG, SEONG SIK, JEONG, DONG-HUN, LIM, CHANG SEONG, JUNG, CHAE-JONG
• Format: Patent
• Language: Chinese; English
• Published: 11.07.2023
• Subjects: CHEMICAL SURFACE TREATMENT; CHEMISTRY; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY IONIMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; COATING MATERIAL WITH METALLIC MATERIAL; COATING METALLIC MATERIAL; DIFFUSION TREATMENT OF METALLIC MATERIAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL; METALLURGY; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THESURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION

Proposed are a slurry composition for suspension plasma thermal spray, a preparation method therefor, and a suspension plasma thermal spray coating film. When the slurry composition is used to form a thermal spray coating film, the thermal spray coating film can be stably applied to applications used in a corrosive environment because no changes occur in content of oxygen and fluorine in the thermal spray coating film. In addition, when forming the coating film, since various crystal structures can be formed under control, the coating film can be used in various environments requiring corrosion resistance. In addition, the slurry composition can inhibit formation of cracks and pores that frequently occur in existing thermal spray coating films, thereby allowing for formation of a denser thermal spray coating film than the existing thermal spray coating film.