Abstract: A light-weight, highly-conductive material useful for repairing a lightning protection system in an aircraft. The material includes a nonwoven carbon fiber veil and a metal coating covering the veil. The veil includes a plurality of carbon fibers looped randomly throughout the veil and a binder material that binds the plurality of fibers together. The metal coating covers a portion of a surface of the plurality of bound fibers of the veil, and preferably the entire surface of both the plurality of bound fibers and the binder material, forming a highly-conductive network that follows the shape of the plurality of fibers in the veil. The areal weight is in a range from at least 5 grams per square meter (gsm), up to 12 gsm, and the sheet resistance is in a range from at least 0.5 ohms per square (?/?), up to 2?/?.

Abstract: A broad good, comprising a plurality of fibers looped randomly throughout the broad good, a binder material binding the plurality of fibers together, the plurality of bound fibers forming a dimensionally stable nonwoven veil, a first metal coating covering a surface of the plurality of bound fibers of the veil, and a second metal coating covering the surface of the first metal coating, wherein the first and second metal coatings form a highly conductive metal screen that follows the shape of the dimensionally stable nonwoven veil.

Abstract: A heated composite tool, useful for forming, debulking, and/or curing prepreg materials, including a composite build structure having a shape of a composite part that is to be produced, configured to receive and support prepreg materials during lay-up, and including a heating structure physically coupled to the composite build structure, and comprising at least one heating element, including a carbon nanotube structured layer defining a current path having first and second ends and first and second electrical terminals electrically coupled to the first and second ends and a first isolation ply disposed between the composite build structure and the at least one heating element, the first isolation ply forming an electrical insulating gap between the at least one heating element and the composite build structure, wherein the carbon nanotube structured layer is responsive to an electromotive force applied across the first and second electrical terminals to heat the tool.

Abstract: A carbon nanotube (CNT) sheet containing CNTs, arranged is a randomly oriented, uniformly distributed pattern, and having a basis weight of at least 1 gsm and a relative density of less than 1.5. The CNT sheet is manufactured by applying a CNT suspension in a continuous pool over a filter material to a depth sufficient to prevent puddling of the CNT suspension upon the surface of the filter material, and drawing the dispersing liquid through the filter material to provide a uniform CNT dispersion and form the CNT sheet. The CNT sheet is useful in making CNT composite laminates and structures having utility for electro-thermal heating, electromagnetic wave absorption, lightning strike dissipation, EMI shielding, thermal interface pads, energy storage, and heat dissipation.

Abstract: A light-weight, highly-conductive material useful for repairing a lightning protection system in an aircraft. The material includes a nonwoven carbon fiber veil and a metal coating covering the veil. The veil includes a plurality of carbon fibers looped randomly throughout the veil and a binder material that binds the plurality of fibers together. The metal coating covers a portion of a surface of the plurality of bound fibers of the veil, and preferably the entire surface of both the plurality of bound fibers and the binder material, forming a highly-conductive network that follows the shape of the plurality of fibers in the veil. The areal weight is in a range from at least 5 grams per square meter (gsm), up to 12 gsm, and the sheet resistance is in a range from at least 0.5 ohms per square (?/?), up to 2?/?.

Abstract: A carbon nanotube (CNT) sheet containing CNTs having a median length of at least 0.05 mm and an aspect ratio of at least 2,500; L arranged b a randomly oriented, uniformly distributed pattern, and having a basis weight of at least 1 gsm and a relative density of less than 1.0. The CNT sheet is manufactured by applying a CNT suspension in a continuous pool over a filter material to a depth sufficient to prevent puddling of the CNT suspension upon the surface of the •filter material, and drawing the dispersing liquid through the filter material to provide a uniform CNT dispersion and form the CNT sheet. The CNT sheet is useful in making CNT composite laminates and structures having utility for electromagnetic wave absorption, lightning strike dissipation. EMI shielding, thermal interface pads, energy storage, and heat dissipation.

Abstract: A carbon nanotube (CNT) sheet containing CNTs, arranged is a randomly oriented, uniformly distributed pattern, and having a basis weight of at least 1 gsm and a relative density of less than 1.5. The CNT sheet is manufactured by applying a CNT suspension in a continuous pool over a filter material to a depth sufficient to prevent puddling of the CNT suspension upon the surface of the filter material, and drawing the dispersing liquid through the filter material to provide a uniform CNT dispersion and form the CNT sheet. The CNT sheet is useful in making CNT composite laminates and structures having utility for electro-thermal heating, electromagnetic wave absorption, lightning strike dissipation, EMI shielding, thermal interface pads, energy storage, and heat dissipation.

Abstract: A electrically-conductive broad good having an electrically-conductive nonwoven veil comprising with a plurality of metal-coated fibers looped randomly throughout the nonwoven veil and a binder material binding the plurality of metal-coated fibers together into the nonwoven veil and a first metal coating covering the conductive nonwoven veil wherein the first metal coating increases the number of electrical interconnections between the plurality of metal-coated carbon fibers within the conductive nonwoven veil and increases the conductivity and ampacity of the plurality of metal-coated fibers.

Abstract: A heating blanket (18), useful for debulking and/or curing composite materials, comprising at least one heating element comprising a carbon nanotube (CNT) structured layer defining an electrically conductive pathway having a first end and a second end and a first electrical terminal (19) electrically coupled to the first end and a second electrical terminal (21) electrically coupled to the second end, and an elastomeric outer covering, encasing the at least one heating element, wherein the at least one heating element is responsive to an electromotive force applied across the first and the second electrical terminals to produce heat.

Abstract: A broad good, comprising a plurality of fibers looped randomly throughout the broad good, a binder material binding the plurality of fibers together, the plurality of bound fibers forming a dimensionally stable nonwoven veil, a first metal coating covering a surface of the plurality of bound fibers of the veil, and a second metal coating covering the surface of the first metal coating, wherein the first and second metal coatings form a highly conductive metal screen that follows the shape of the dimensionally stable nonwoven veil.

Abstract: A carbon nanotube (CNT)/polymer film or CNT/polymer composite structure containing CNTs, arranged uniformly in a randomly oriented distribution in the polymer matrix. The CNT sheet is manufactured by applying a highly dispersed CNT-polymer-solvent suspension, mixed using ultrasonication, over a carrier, using a coating process, and drying to form the CNT/polymer film. The CNT film is useful in making CNT composite laminates and structures having utility for electro-thermal heating, deicing, shielding for wire & cable, thermal interface pads, energy storage, heat dissipation, conductive composites, antennas, reflectors, and electromagnetic environmental effects (E3), such as lightning strike protection, EMP protection, directed energy protection, and EMI shielding in a variety of form factors such as sheets, roll stocks, and tapes.

Abstract: A carbon nanotube (CNT) sheet containing CNTs, arranged is a randomly oriented, uniformly distributed pattern, and having a basis weight of at least 1 gsm and a relative density of less than 1.5. The CNT sheet is manufactured by applying a CNT suspension in a continuous pool over a filter material to a depth sufficient to prevent puddling of the CNT suspension upon the surface of the filter material, and drawing the dispersing liquid through the filter material to provide a uniform CNT dispersion and form the CNT sheet. The CNT sheet is useful in making CNT composite laminates and structures having utility for electro-thermal heating, electromagnetic wave absorption, lightning strike dissipation, EMI shielding, thermal interface pads, energy storage, and heat dissipation.

Abstract: A resistive heating element for use in or manufacturing of a component of an aircraft or spacecraft. The resistive heating element includes a sheet made from carbon nanotubes (CNTs) having a length of at least about 5 ???, and formed as a nonwoven or composite polymer sheet, having good uniformity. The sheet is made with a basis weight between 1 and 50 grams per square meter (gsm), to provide a resistance value, inversely related to the basis weight, of at least about 0.01 ohms per square (?/?), and up to about 100 ?/?. The CNTs can have an aspect ratio of at least about 1000:1, and at least about 10,000:1 or 100,000:1. The resistance value of the sheet can be controlled by the basis weight of CNTs, the diameter of the CNTs, and the length of CNTs, as well as chemical and mechanical treatments.

Abstract: A carbon nanotube (CNT) sheet containing CNTs having a median length of at least 0.05 mm and an aspect ratio of at least 2,500; L arranged b a randomly oriented, uniformly distributed pattern, and having a basis weight of at least 1 gsm and a relative density of less than 1.0. The CNT sheet is manufactured by applying a CNT suspension in a continuous pool over a filter material to a depth sufficient to prevent puddling of the CNT suspension upon the surface of the •filter material, and drawing the dispersing liquid through the filter material to provide a uniform CNT dispersion and form the CNT sheet. The CNT sheet is useful in making CNT composite laminates and structures having utility for electromagnetic wave absorption, lightning strike dissipation. EMI shielding, thermal interface pads, energy storage, and heat dissipation.