Structure or component for high temperature applications, as well as methods and apparatus for producing same
AssigneeAirbus Defence and Space GmbH
InventorsJürgen Steinwandel, Christian Wilhelmi, Franziska Uhlmann, Stefan Laure
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Abstract
A structure for high temperature applications comprises a base structure which includes a ceramic composite material, and a coating of a metal-semimetal compound, a metal boride, a metal carbide and/or a metal nitride. Furthermore, a production method and a coating device produces structures which resist high temperature applications with higher process temperatures and difficult chemical conditions.
Claims9
A method for producing a structure for high temperature applications comprising a base structure which includes a ceramic composite material and a coating, the method comprising:
- providing the base structure of the ceramic composite material including a ceramic fiber composite material;
- coating the base structure with an ultra high temperature ceramic coating of a coating material which contains at least a metal-semimetal compound, at least a metal boride, at least a metal carbide or at least a metal nitride, by
- installing the base structure in a vacuum process chamber for plasma beam techniques,
- providing a plasma torch with a cathode, an elongated plasma channel downstream of the cathode to guide the plasma beam, and an ultrasonic nozzle downstream of the elongated plasma channel,
- introducing the coating material into the elongated plasma channel and forming a gas mixture in the elongated plasma channel,
- expanding the gas with coating material via the ultrasonic nozzle, and
- plasma coating the base structure with the coating material.
An apparatus comprising:
- a vacuum process chamber for plasma beam techniques;
- a plasma torch configured to produce a plasma beam and having a cathode, an anode, an elongated plasma channel downstream of the cathode for guiding a plasma beam, and an ultrasonic nozzle downstream of the elongated plasma channel;
- and
- a device configured to introduce a coating material downstream of the cathode arranged such that the coating material is introduced into the elongated plasma channel,
- the apparatus configured to coat a base structure disposed in the vacuum chamber with an ultra high temperature ceramic coating of the coating material which contains at least a metal-semimetal compound, at least a metal boride, at least a metal carbide or at least a metal nitride when the base structure is installed in the vacuum process chamber, by introducing the coating material into the elongated plasma channel and forming a gas mixture in the elongated plasma channel, expanding the gas with coating material via the ultrasonic nozzle, and plasma coating the base structure with the coating material.
Dependencies are inferred from the claim text.