Plasma clustered deposition of infusible coatings
A.V. Ivanov, M.N. Polyansky, S.G. Rebrov
Coatings deposition
abstract:A new promising technology of infusible coatings deposition based on acceleration of powder material partic les in plasma jet is under consideration. The main difference from analogous techniques is that both jet expanding and coating deposition are performed in vacuum. This gives the following advantages: particles reach higher velocities, the re is a possibility to regulate medium atmospheric condit ions. As the result, coating quality is higher adhesive strength is up to 400 500 MPa, microhardness is up to 2000 HV MPa, and durability coefficient of cutting tools (drill bits, hard metal tips) increases 2 2,5 times (using TiC+Cr3C2 coatings).
keywords:nozzle; plasma generator
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