摘要:
An exemplary embodiment provides a composite substrate including a resin matrix that has embedded therein a flex circuit and reinforcing filler. The flex circuit includes a metallic circuit on a film that is co-cured with the resin matrix. The metallic circuit may be configured for any of a variety of functions, including for example, dissipating energy generated by a lightning strike on the composite substrate. The flex circuit may also provide a platform for implementation of other communication and maintenance functions.
摘要:
A pre-fabricated article for a composite aircraft component includes a dielectric layer and a pre-fabricated metalized pattern on the dielectric layer. The metalized pattern is fabricated on the dielectric layer prior to integration with the composite aircraft component. The metalized pattern diverts EME current away from EME protection areas of the aircraft component.
摘要:
An aircraft component includes a composite structure and a metallic circuit on a film. The film is co-cured with the composite structure. The metallic circuit is patterned to dissipate energy generated by lightning strikes on the composite structure. The metal circuit is also patterned to provide connectivity for multi-function apparatus.
摘要:
An exemplary embodiment provides a multi-layer circuit joining assembly material configured to repair multi-layer flex circuits deployed on or in a composite surface as a lightning protection system. The multi-layer circuit joining assembly material includes a first conductive layer having a first end portion, a second conductive layer having a second end portion, and a dielectric material between the first conductive layer and the second conductive layer.
摘要:
An exemplary embodiment provides a multi-layer circuit joining assembly material configured to repair multi-layer flex circuits deployed on or in a composite surface as a lightning protection system. The multi-layer circuit joining assembly material includes a first conductive layer having a first end portion, a second conductive layer having a second end portion, and a dielectric material between the first conductive layer and the second conductive layer.
摘要:
A pre-fabricated article for a composite aircraft component includes a dielectric layer and a pre-fabricated metalized pattern on the dielectric layer. The metalized pattern is fabricated on the dielectric layer prior to integration with the composite aircraft component. The metalized pattern diverts EME current away from EME protection areas of the aircraft component.
摘要:
Methods include applying an electric charge to a coating material that includes carbon nanotubes and a carrier, such as paint, and depositing the electrically charged coating material to a substrate. In some methods, the applying includes utilizing an electrostatic sprayer. In some methods, the substrate is isolated from ground during the depositing. In some methods, the substrate is an insulator. Some methods result in regions of carbon nanotubes that are substantially longitudinally aligned after the depositing. Coated substrates may include a coating with carbon nanotubes that are substantially longitudinally aligned. Aircraft, spacecraft, land vehicles, marine vehicles, wind turbines, and apparatuses that may be susceptible to lightning strikes or other types of electromagnetic effects and that include a coated substrate also are disclosed.
摘要:
A method and apparatus for lighting protection. In one advantageous embodiment a method forms a lighting protection system on a composite surface of an aircraft. A dielectric coating is formed on the composite surface in which the dielectric coating covers a metal feature exposed on the composite surface. A metal adhesion promoter is applied in a pattern on the dielectric coating and over additional areas of the composite surface, including a grounding feature to form a metal adhesion promoter layer. A metal coating is formed on the metal adhesion promoter layer to create a path from an area including the metal feature to the grounding feature.
摘要:
A lightning protection system for protecting composite structures and a method of protecting composite structures from lightning strikes. A dielectric ply is fixed above and completely covers metal surface features, e.g., skin fasteners through a composite skin to a wing fuel tank. A conductive ply is fixed above and completely covers the dielectric ply and extends to an external connection to a platform ground. The conductive ply directs current from lightning strikes away from metal surface features, e.g., to the platform ground. Both plies may be adhesively backed and sequentially pressed into place.
摘要:
Methods include applying an electric charge to a coating material that includes carbon nanotubes and a carrier, such as paint, and depositing the electrically charged coating material to a substrate. In some methods, the applying includes utilizing an electrostatic sprayer. In some methods, the substrate is isolated from ground during the depositing. In some methods, the substrate is an insulator. Some methods result in regions of carbon nanotubes that are substantially longitudinally aligned after the depositing. Coated substrates may include a coating with carbon nanotubes that are substantially longitudinally aligned. Aircraft, spacecraft, land vehicles, marine vehicles, wind turbines, and apparatuses that may be susceptible to lightning strikes or other types of electromagnetic effects and that include a coated substrate also are disclosed.