METHOD FOR OPTIMIZING PROPERTY PROFILES IN SOLID SUBSTRATE PRECURSORS

    公开(公告)号:US20240025794A1

    公开(公告)日:2024-01-25

    申请号:US18352741

    申请日:2023-07-14

    发明人: Klaus BECKER

    IPC分类号: C03C3/06

    摘要: A method for producing a substrate precursor having a mass of more than 100 kg, comprising a TiO2-SiO2 mixed glass, comprising the steps including:
    introducing a silicon dioxide raw material and a titanium dioxide raw material into a flame,
    producing a glass body having a titanium dioxide content of 3 wt. % up to 10 wt. %, the glass body comprising:
    a macroscopic, production-related titanium profile, and
    a microscopic, production-related layer structure,
    dividing the glass body into a plurality of rod-like glass body portions,
    spatially measuring the titanium profile in each of the glass body portions,
    connecting the glass body portions to form an elongate first glass component,
    first homogenization treatment of the first glass component,
    pushing together the first glass component to create a spherical glass system,
    turning the glass system more than 70 degrees,
    and stretching the glass system.

    Superomniphobic bulk optical glass

    公开(公告)号:US11724955B2

    公开(公告)日:2023-08-15

    申请号:US16942632

    申请日:2020-07-29

    申请人: Waymo LLC

    发明人: John T. Simpson

    摘要: A method for preparing an optically transparent, superomniphobic glass composition is described. In one aspect, the present disclosure provides a method for preparing a glass composition, including heating a borosilicate glass comprising 45-85 wt. % silicon oxide and 10-40 wt. % boron oxide to form a phase-separated glass comprising an interpenetrating network of silicon oxide domains and boron oxide domains. The method includes removing at least a portion of the boron oxide domains from the phase-separated glass and depositing a hydrophobic silane to provide a porous glass having a hydrophobic silane layer disposed on a portion of the surface thereof, a total pore volume of 15-50 vol. %, and an average pore diameter of 20-300 nm. The method includes, within at least a portion of the volume of the porous glass, forming an aerogel precursor, and converting at least a portion of the aerogel precursor to an aerogel.

    Preparation of an opaque quartz glass body

    公开(公告)号:US11236002B2

    公开(公告)日:2022-02-01

    申请号:US16062303

    申请日:2016-12-16

    IPC分类号: C03B19/06 C03C3/06 C03C1/02

    摘要: One aspect relates to a process for the preparation of a quartz glass body. The process includes providing a silicon dioxide granulate from a pyrogenically produced silicon dioxide powder, making a glass melt out of silicon dioxide granulate, and making a quartz glass body out of at least part of the glass melt. The size of the quartz glass body is reduced to obtain a quartz glass grain. The quartz glass body is processed to make a preform and an opaque quartz glass body is made from the preform. One aspect further relates to an opaque quartz glass body which is obtainable by this process. One aspect further relates to a reactor and an arrangement, which are each obtainable by further processing of the opaque quartz glass body.

    Optical fiber
    10.
    发明授权

    公开(公告)号:US11048040B2

    公开(公告)日:2021-06-29

    申请号:US16849449

    申请日:2020-04-15

    摘要: The optical fiber offered is capable of not only restraining the attenuation due to glass defects, but also reducing the increase of manufacturing cost. The optical fiber is made of silica glass and includes a core and a cladding. The cladding encloses the core and has a refractive index smaller than that of the core. When the core is divided into inner core and outer core at half of the radius of the core, the average chlorine concentration of the inner core is larger than that of the outer core. The core includes any of the alkali metal group.