摘要:
A method for depositing a nanostructured coating comprising chromium or a copper-chromium mixture on a workpiece. The workpiece may comprise a hollowed structure such as a rocket or jet engine combustion chamber liner. The method comprises providing a magnetron and an external sputter target material comprising chromium or a copper-chromium composite and effecting a magnetron sputter deposition to deposit a substantially uniform nanostructured coating comprising said sputter target material on said workpiece. The method may include plasma enhancement wherein a filament is utilized to produce a plasma that effects an ion bombardment on the workpiece during the magnetron sputter deposition process. The invention also includes the nanostructured coatings deposited by these methods and workpieces coated thereby.
摘要:
A system and method for depositing coatings on an inner surface of a tubular structure includes at least one pump for creating and maintaining a vacuum in the tubular structure, a meshed electrode adapted to be positioned in a center of the tubular structure, and a biased voltage power supply connected to the meshed electrode. The biased voltage power supply is adapted to apply a negative voltage to the meshed electrode such that the negative voltage causes a hollow cathode discharge inside the meshed electrode. The creation of the hollow cathode discharge causes ions to be drawn out of a mesh on the meshed electrode and accelerate onto an inner surface of the tubular structure, thereby coating the inner surface with a desired coating.
摘要:
A method of performing plasma immersion ion processing (PIIP), particularly suited for processing three-dimensional objects. One or more such objects are placed in a conductive cage having solid or mesh walls. The cage completely encloses the objects. A voltage is applied to the cage, and the plasma is generated, resulting in the plasma being contained within the cage.
摘要:
The present disclosure relates to an apparatus and method utilizing double glow discharge for sputter cleaning of a selected surface. The surface may include the inner surface of a hollow substrate such as a tube which inner surface may then be coated via magnetron sputter deposition.
摘要:
The present disclosure relates to a coating and a method of applying such coating that may include nanocrystals of a transition metal compound embedded in an amorphous phase or layered structure of transition metal compounds with an amorphous phase. The transition metal compound may be selected from the group consisting of metal nitrides, metal carbides, metal silicides and combinations thereof. The amorphous matrix may include a ceramic.
摘要:
A method of performing plasma immersion ion processing (PIIP), particularly suited for processing three-dimensional objects. One or more such objects are placed in a conductive cage having solid or mesh walls. The cage completely encloses the objects. A voltage is applied to the cage, and the plasma is generated, resulting in the plasma being contained within the cage.
摘要:
A method for depositing a nanostructured coating comprising chromium or a copper-chromium mixture on a workpiece. The workpiece may comprise a hollowed structure such as a rocket or jet engine combustion chamber liner. The method comprises providing a magnetron and an external sputter target material comprising chromium or a copper-chromium composite and effecting a magnetron sputter deposition to deposit a substantially uniform nanostructured coating comprising said sputter target material on said workpiece. The method may include plasma enhancement wherein a filament is utilized to produce a plasma that effects an ion bombardment on the workpiece during the magnetron sputter deposition process. The invention also includes the nanostructured coatings deposited by these methods and workpieces coated thereby.