Controlled trivalent chromium pretreatment

    公开(公告)号:US09695523B2

    公开(公告)日:2017-07-04

    申请号:US14052719

    申请日:2013-10-12

    CPC classification number: C25D3/06 C25D5/18 C25D9/04 C25D9/06 C25D21/12

    Abstract: A method for forming a trivalent chromium coating on an aluminum alloy substrate includes adding a chromium-containing solution to a vessel, immersing the aluminum alloy substrate in the chromium-containing solution, immersing a counter electrode in the chromium-containing solution, and applying an electrical potential bias to the aluminum alloy substrate with respect to its equilibrium potential to form a trivalent chromium coating on an outer surface of the aluminum alloy substrate. A method for forming a trivalent chromium coating on a metal substrate includes adding a chromium-containing solution to a vessel, immersing the metal substrate in the chromium-containing solution, immersing a counter electrode in the chromium-containing solution, and modulating an electrical potential difference between the metal substrate and the counter electrode to form a trivalent chromium coating on an outer surface of the metal substrate.

    COMPOSITES AND METHODS OF MAKING COMPOSITE MATERIALS

    公开(公告)号:US20210098149A1

    公开(公告)日:2021-04-01

    申请号:US17105352

    申请日:2020-11-25

    Abstract: A method of making a composite material includes disposing a carbon-based particulate material, such as graphene or carbon nanotubes, in an activation solution and activating surfaces of the carbon-based particulate material using the activation solution. Once the surfaces of the carbon-based particulate material have been activated, a metallic coating is applied to the activated surfaces to form a composite material. The composite material is then recovered as a particulate material formed having carbon-based particulate material with a metallic coating that is suitable for fusing together for forming electrical conductors, such as with an additive manufacturing technique.

    LASER ENHANCEMENTS OF MICRO COLD SPRAY PRINTED POWDER

    公开(公告)号:US20180093493A1

    公开(公告)日:2018-04-05

    申请号:US15282178

    申请日:2016-09-30

    CPC classification number: B41J2/442

    Abstract: A micro cold spray printer system having: a printer housing having a longitudinal axis; a transfer tube defining an optical chamber oriented parallel and coaxial to a the longitudinal axis of the housing the optical chamber having an exit; a particle supply inlet fluidly connected to the optical chamber, the particle supply inlet in operation supplying particles to flow through the optical chamber along the longitudinal axis and out the exit; and a laser that in operation emits a laser beam into the optical chamber to heat the particles to a selected temperature. The laser beam is directed at an angle that is not parallel to the longitudinal axis.

    COMPOSITE ELECTRICALLY CONDUCTIVE STRUCTURES
    16.
    发明申请
    COMPOSITE ELECTRICALLY CONDUCTIVE STRUCTURES 有权
    复合电导体结构

    公开(公告)号:US20140363677A1

    公开(公告)日:2014-12-11

    申请号:US13915038

    申请日:2013-06-11

    Abstract: An electrically conductive structure including a substrate material and graphene. A first cross-section taken along an axial direction of the electrically conductive structure includes a plurality of layers of the substrate material and at least one internal layer of the graphene alternatingly disposed between the plurality of layers of the substrate material. A method of tailoring an amount of graphene in an electrically conductive structure is also included.

    Abstract translation: 包括基底材料和石墨烯的导电结构。 沿着导电结构的轴向截取的第一横截面包括基底材料的多个层和交替地设置在基底材料的多个层之间的石墨烯的至少一个内部层。 还包括在导电结构中调整一定量的石墨烯的方法。

    CONTROLLED TRIVALENT CHROMIUM PRETREATMENT
    19.
    发明申请
    CONTROLLED TRIVALENT CHROMIUM PRETREATMENT 有权
    控制的TRIVALENT铬预处理

    公开(公告)号:US20150101934A1

    公开(公告)日:2015-04-16

    申请号:US14052719

    申请日:2013-10-12

    CPC classification number: C25D3/06 C25D5/18 C25D9/04 C25D9/06 C25D21/12

    Abstract: A method for forming a trivalent chromium coating on an aluminum alloy substrate includes adding a chromium-containing solution to a vessel, immersing the aluminum alloy substrate in the chromium-containing solution, immersing a counter electrode in the chromium-containing solution, and applying an electrical potential bias to the aluminum alloy substrate with respect to its equilibrium potential to form a trivalent chromium coating on an outer surface of the aluminum alloy substrate. A method for forming a trivalent chromium coating on a metal substrate includes adding a chromium-containing solution to a vessel, immersing the metal substrate in the chromium-containing solution, immersing a counter electrode in the chromium-containing solution, and modulating an electrical potential difference between the metal substrate and the counter electrode to form a trivalent chromium coating on an outer surface of the metal substrate.

    Abstract translation: 在铝合金基板上形成三价铬涂层的方法包括向容器中加入含铬溶液,将铝合金基板浸入含铬溶液中,将反电极浸入含铬溶液中, 相对于其平衡电位,在铝合金基板的外表面上形成三价铬涂层的电位偏压。 在金属基材上形成三价铬涂层的方法包括向容器中加入含铬溶液,将金属基材浸入含铬溶液中,将相对电极浸入含铬溶液中,并调制电位 金属基板和对电极之间的差异,以在金属基板的外表面上形成三价铬涂层。

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