METHODS OF FABRICATION OF CERAMIC MIRROR BLANKS

    公开(公告)号:US20220314488A1

    公开(公告)日:2022-10-06

    申请号:US17704087

    申请日:2022-03-25

    Abstract: The disclosure relates to methods of fabricating of ceramic structures, and more particularly to methods of fabricating ceramic structures having profiled surfaces and more particularly to methods of fabrication of ceramic mirror blanks. In one embodiment, a method of forming a shaped ceramic article, includes: forming, via one of a cold-pressing process or pressure casting process, a green ceramic article comprising a first surface, an opposing second surface and at least one high aspect ratio feature shaped into at least one surface; heating the green featured ceramic part to form a debound featured ceramic part; and densifying the debound featured ceramic part via one of a pressureless sintering process or a hot-pressing process.

    FIBER ARRAY SPACERS, OPTICAL ASSEMBLIES INCORPORATING FIBER ARRAY SPACERS, AND METHODS OF FABRICATING THE SAME

    公开(公告)号:US20210096302A1

    公开(公告)日:2021-04-01

    申请号:US17022443

    申请日:2020-09-16

    Abstract: Fiber array spacers, optical fiber assemblies, optical assemblies, and methods for fabricating optical assemblies are disclosed. In one embodiment, an optical fiber assembly includes a fiber array spacer and a fiber ribbon having an array of optical fibers. The fiber array spacer has an array of spacer fibers, wherein individual spacer fibers of the array of spacer fibers are bonded to one another, and a diameter of the individual spacer fibers determines a height of the fiber array spacer. Each optical fiber of the array of optical fibers has an glass portion. The glass portion of each optical fiber is bonded to the fiber array spacer such that a longitudinal axis of the individual spacer fibers is transverse to a longitudinal axis of individual optical fibers of the fiber ribbon.

    Reflective optical element with high stiffness substrate

    公开(公告)号:US10816702B2

    公开(公告)日:2020-10-27

    申请号:US15455654

    申请日:2017-03-10

    Abstract: A high stiffness substrate for optical elements is described. The substrate includes a graphite finishing layer and a non-oxide ceramic base substrate. The non-oxide ceramic base substrate is preferably a carbide, such as boron carbide or silicon carbide. The graphite finishing layer may include a surface with low finish. Low finish may be achieved by diamond turning the graphite surface. The graphite finishing layer may be joined to the non-oxide base ceramic with a solder. A supplemental finishing layer may be formed on the graphite finishing layer. A reflective stack may be formed on the graphite or supplemental finishing layer. Methods for making the substrate are also described.

    REFLECTIVE OPTICAL ELEMENT WITH HIGH STIFFNESS SUBSTRATE

    公开(公告)号:US20180231698A1

    公开(公告)日:2018-08-16

    申请号:US15455654

    申请日:2017-03-10

    Abstract: A high stiffness substrate for optical elements is described. The substrate includes a graphite finishing layer and a non-oxide ceramic base substrate. The non-oxide ceramic base substrate is preferably a carbide, such as boron carbide or silicon carbide. The graphite finishing layer may include a surface with low finish. Low finish may be achieved by diamond turning the graphite surface. The graphite finishing layer may be joined to the non-oxide base ceramic with a solder. A supplemental finishing layer may be formed on the graphite finishing layer. A reflective stack may be formed on the graphite or supplemental finishing layer. Methods for making the substrate are also described.

    Ultracapacitor vacuum assembly
    8.
    发明授权
    Ultracapacitor vacuum assembly 有权
    超级电容真空组件

    公开(公告)号:US09293268B2

    公开(公告)日:2016-03-22

    申请号:US14087761

    申请日:2013-11-22

    Abstract: A method for fabricating an EDLC includes (a) coating a porous activated carbon material onto current collector sheets to form carbon-based electrodes, (b) drying the carbon-based electrodes, (c) winding or stacking carbon-based electrodes interleaved with separator sheets to fabricate a jelly roll or prismatic electrode assembly, (d) inserting the electrode assembly into a package and forming electrical connections between the electrode assembly and package terminals, (e) filling the package with a liquid electrolyte, and (f) sealing the package. Steps (a)-(f) are performed in an atmosphere having a low moisture content. The atmosphere may be vacuum or purged with dry gas.

    Abstract translation: 一种制造EDLC的方法包括(a)将多孔活性炭材料涂覆到集电体片材上以形成碳基电极,(b)干燥碳基电极,(c)缠绕或堆叠交替分离的碳基电极 制造果冻卷或棱柱电极组件,(d)将电极组件插入包装中并在电极组件和封装端子之间形成电连接,(e)用液体电解质填充封装,和(f)将 包。 步骤(a) - (f)在具有低水分含量的气氛中进行。 气氛可能是真空或用干燥气体吹扫。

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