Systems and methods for curing composite structures

    公开(公告)号:US10315341B2

    公开(公告)日:2019-06-11

    申请号:US14494478

    申请日:2014-09-23

    Abstract: Systems are disclosed for curing composite parts within a container, wherein a pressurized environment may be created via a body of water. Disclosed systems may include the container, a heating system, and a mechanism for raising and/or lowering the container within the body of water. The container may include one or more rigid walls, one or more non-rigid walls, and/or one or more port holes extending through one or more of the rigid walls and/or non-rigid walls. Methods of curing composite parts using such systems are also disclosed. Methods may include providing a container having a cavity configured to receive a composite part, thermally coupling a heating system to the container, inserting the composite part into the cavity, submerging the container under a depth of external liquid, flowing a volume of fluid into the cavity, heating the volume of fluid, thereby curing the composite part.

    System and method for forming a composite part

    公开(公告)号:US10272658B2

    公开(公告)日:2019-04-30

    申请号:US14794238

    申请日:2015-07-08

    Abstract: A method of forming a composite part may include positioning composite layers onto a part-supporting surface of a support tool. The composite layers combine to form the composite part. The method may also include covering the composite part on the support tool with a vacuum bag, and forming a heat transfer assembly on the vacuum bag in relation to a portion of the composite part. The method may include forming the heat transfer assembly on the vacuum bag by depositing a fluid layer of material onto the vacuum bag, inserting heat transfer promoters into the fluid, and cooling the fluid to form a solid heat transfer assembly.

    Electronically reversible adhesive systems

    公开(公告)号:US10240070B1

    公开(公告)日:2019-03-26

    申请号:US15705566

    申请日:2017-09-15

    Abstract: An adhesive system for attachment to a contact surface of an object comprises a backing, carbon nanotubes, charged nanoparticles, and an electrical source. The carbon nanotubes each have a first end region and a second end region, opposite the first end region. Each of the charged nanoparticles is coupled to the second end region of at least one of the carbon nanotubes. The electrical source is configured to selectively electrically charge the backing to cause an electrical repulsion force between the backing and the charged nanoparticles. The first end region of each of the carbon nanotubes is coupled to the backing. The second end region of each of a number of the carbon nanotubes is coupled to none of the charged nanoparticles.

    Ultrasound Inspection System
    84.
    发明申请

    公开(公告)号:US20180299411A1

    公开(公告)日:2018-10-18

    申请号:US15485757

    申请日:2017-04-12

    Abstract: A method and system for inspecting a structure. The method may comprise sending a pulsed wave signal into the structure from a transmitter array. The method may detect a response signal in response to sending the pulsed wave signal into the structure at a group of receivers in a receiver array. The method may identify a group of time delays between sending the pulsed wave signal and may detect the response signal generated in response to the pulsed wave signal at the group of receivers. The method may identify a group of intensities for the response signal detected at the group of receivers. The method may determine a distance to a reflector within the structure using the group of time delays and the group of intensities.

    SYSTEM AND PROCESS FOR CHEMICAL VAPOR DEPOSITION

    公开(公告)号:US20180163297A1

    公开(公告)日:2018-06-14

    申请号:US15376867

    申请日:2016-12-13

    Abstract: A chemical vapor deposition method comprises flowing a carrier liquid through a reactor. A fluid comprising one or more reactants is introduced into the carrier liquid. The fluid is at a first temperature and first pressure and is sufficiently immiscible in the carrier liquid so as to form a plurality of microreactors suspended in the carrier liquid. Each of the microreactors comprise a discrete volume of the fluid and have a surface boundary defined by an interface of the fluid with the carrier liquid. The fluid is heated and optionally pressurized to a second temperature and second pressure at which a chemical vapor deposition reaction occurs within the microreactors to form a plurality of chemical vapor deposition products. The plurality of chemical vapor deposition products are separated from the carrier liquid. A system for carrying out the method of the present disclosure is also taught.

    INTERWOVEN CARBON NANOTUBE MATS
    86.
    发明申请

    公开(公告)号:US20170283263A1

    公开(公告)日:2017-10-05

    申请号:US15390602

    申请日:2016-12-26

    Abstract: Systems and methods are provided for stitching together sheets of interwoven carbon nanotubes. One embodiment is a method that includes providing multiple sheets of interwoven carbon nanotubes, arranging the sheets over a substrate such that interstices of the sheets overlap at a stitch region of the substrate and heating catalysts at the substrate above a threshold temperature to trigger growth of new carbon nanotubes. The method also includes adjusting alignment of an electrical field that defines a direction of growth of the new carbon nanotubes, thereby causing the new carbon nanotubes to grow through the interstices and then stitch the sheets together.

    Methods of forming a thinned prepreg sheet

    公开(公告)号:US09604414B2

    公开(公告)日:2017-03-28

    申请号:US14549231

    申请日:2014-11-20

    Abstract: A method of forming a thinned prepreg sheet is disclosed. The method comprises providing a first precursor sheet comprising reinforcement fibers impregnated with a matrix resin in a first state. The method also comprises forming a second precursor sheet having a first thickness by cooling the first precursor sheet until the matrix resin is transformed from the first state to a second state. The method further comprises forming a crushed sheet comprising interstices having an average size by crushing the second precursor sheet, where the crushed sheet has a second thickness. The method also comprises forming the thinned prepreg sheet by heating the crushed sheet until the matrix resin is transformed from the second state to a third state. The thinned prepreg sheet has a third thickness less than the first thickness of the second precursor sheet.

    Graphene-augmented composite materials
    90.
    发明授权
    Graphene-augmented composite materials 有权
    石墨烯增强复合材料

    公开(公告)号:US09518160B2

    公开(公告)日:2016-12-13

    申请号:US14865820

    申请日:2015-09-25

    Abstract: Composite materials are augmented with functionalized graphene having added amine groups, benzoxazine groups, imide groups, or a combination of amine groups and imide groups on a surface of the graphene, epoxide groups formed on at least one edge of the graphene and/or holes formed through the graphene. The functionalized graphene is integrated into a composite material as a supplement to or as a replacement for either the carbon reinforcement material or the resin matrix material to increase strength of the composite materials, and may be in the form of a functionalized graphene nanoplatelet, a flat graphene sheet or film, or a rolled or twisted graphene sheet or film.

    Abstract translation: 在石墨烯的表面上添加有胺基,苯并嗪基,酰亚胺基或胺基和酰亚胺基的组合的官能化石墨烯增强了复合材料,形成在石墨烯的至少一个边缘上的环氧基和/或形成的孔 通过石墨烯。 功能化的石墨烯被整合成复合材料,作为碳增强材料或树脂基质材料的补充或替代,以增加复合材料的强度,并且可以是官能化的石墨烯纳米血小板,扁平 石墨烯片或薄膜,或卷状或扭曲的石墨烯片或薄膜。

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