SiO2 SLURRY FOR THE PRODUCTION OF QUARTZ GLASS AS WELL AS THE APPLICATION OF THE SLURRY
    2.
    发明申请
    SiO2 SLURRY FOR THE PRODUCTION OF QUARTZ GLASS AS WELL AS THE APPLICATION OF THE SLURRY 有权
    二氧化硅浆料用于生产石英玻璃作为浆料的应用

    公开(公告)号:US20120114847A1

    公开(公告)日:2012-05-10

    申请号:US13340632

    申请日:2011-12-29

    IPC分类号: C03B8/00 B05D5/06

    摘要: SiO2 slurry for the production of quartz glass contains a dispersion liquid and amorphous SiO2 particles with particle sizes to a maximum of 500 μm. The largest volume fraction is SiO2 particles with particle sizes of 1 μm-60 μm, as well as SiO2 nanoparticles with particle sizes less than 100 nm constituting 0.2-15% volume by weight of the entire solids content. To prepare the slurry for use and optimize its flow behavior for later processing by dressing or pouring the slurry mass, and for later drying and sintering without cracks, the slurry has SiO2 particles with a multimodal distribution of particle sizes, with a first maximum in the range 1 μm-3 μm and a second maximum in the range 5 μm-50 μm, and an 83%-90% solids content by weight of the SiO2 particles and the SiO2 nanoparticles together.

    摘要翻译: 用于生产石英玻璃的SiO2浆料含有粒径达500μm的分散液和无定形SiO 2颗粒。 最大的体积分数是粒径为1μm-60μm的SiO 2颗粒,以及粒径小于100nm的SiO 2纳米颗粒,占整个固体含量的0.2-15重量%。 为了制备使用的浆料并优化其流动行为以便随后通过修整或倾倒浆料进行加工,并且为了稍后的干燥和烧结而没有裂缝,该浆料具有多晶粒度分布的SiO 2颗粒,其中第一最大值在 范围为1μm-3μm,第二最大值为5μm-50μm,并且SiO 2颗粒和SiO 2纳米颗粒的固体含量为83%-90%。

    Process for producing silica glass product
    4.
    发明申请

    公开(公告)号:US20100251770A1

    公开(公告)日:2010-10-07

    申请号:US12802846

    申请日:2010-06-15

    IPC分类号: C03B8/00

    摘要: A process for producing a transparent or opaque silica glass product including mixing a silica fine powder and a cellulose derivative and injection molding the mixture, followed by degreasing treatment and baking treatment, which is characterized in that the cellulose derivative is a cellulose derivative which causes reversible thermal gelation in an aqueous solution of at least one member selected from methyl cellulose, hydroxypropylmethyl cellulose and hydroxyethylmethyl cellulose; in producing a transparent silica glass product, the cellulose derivative is added in water heated at a gelation temperature thereof or higher, and after cooling, the formed aqueous solution is kneaded with the silica fine powder; and in producing an opaque silica glass product, the cellulose derivative is added in a silica slurry containing a silica powder and heated at a gelation temperature of the cellulose derivative or higher.

    Method for the Production of Shaped Silica Aquagels
    5.
    发明申请
    Method for the Production of Shaped Silica Aquagels 审中-公开
    异形二氧化硅水生产方法

    公开(公告)号:US20080302135A1

    公开(公告)日:2008-12-11

    申请号:US11667977

    申请日:2005-10-28

    IPC分类号: C03B8/00

    摘要: It has been discovered that aquagels, formed from acid catalized composite sols, survive to conditions of high-tension when they are prepared by a process that hydrolyzes the silicon alkoxides in presence of fumed silica.The aquagel can be used for the production of monoliths of glass.

    摘要翻译: 已经发现,当通过在热解法二氧化硅存在下水解硅醇盐的方法制备时,由酸性催化的复合溶胶形成的水凝胶可以存在于高压条件下。 水凝胶可用于生产玻璃块。

    Silicon oxide based articles
    8.
    发明申请
    Silicon oxide based articles 审中-公开
    氧化硅基制品

    公开(公告)号:US20060218970A1

    公开(公告)日:2006-10-05

    申请号:US10549681

    申请日:2004-03-12

    摘要: Particularly shaped articles constituted by silicon oxide, as such or with suitable additives, prepared by room temperature molding according to a process comprising: preparation of a sol starting from a silicon alcoxide, or from a silicon alcoxide and at least a precursor of at least one of the additional elements; hydrolysis of the sol obtained thereby; addition of colloidal silica; pouring the resulting mixture into the desired mould; sol gelling and fast removal of the solid product; gel drying; gel densification by means of a thermal treatment at temperature ranging from 900 ° C to 1500 ° C. The articles can be used as preforms for the optic fiber spinning.

    摘要翻译: 由氧化硅本身或与适当的添加剂构成的特殊成型制品通过室温成型制备,所述方法包括:从硅烷醇或硅烷醇硅烷和至少一种至少一种的前体制备溶胶 的附加要素; 由此获得的溶胶水解; 加入胶体二氧化硅; 将所得混合物倒入所需的模具中; 溶胶凝胶和快速去除固体产品; 凝胶干燥; 通过在900℃至1500℃的温度范围内的热处理进行凝胶致密化。制品可用作光纤纺丝的预制件。

    Organic-inorganic hybrid glassy materials and their production processes
    9.
    发明申请
    Organic-inorganic hybrid glassy materials and their production processes 失效
    有机 - 无机混合玻璃材料及其生产工艺

    公开(公告)号:US20050132748A1

    公开(公告)日:2005-06-23

    申请号:US10875617

    申请日:2004-06-25

    摘要: In the production of an organic-inorganic hybrid glassy material using raw materials which are used in a sol-gel process as starting materials, the present invention relates to a process for producing an organic-inorganic hybrid glassy material, which is characterized in that, there is a heating reaction step between a mixing step and a melting step of the starting materials and there is further an aging step after the melting step. In accordance with the present invention, an organic-inorganic hybrid glassy material satisfying both heat resistance as well as airtight property and low-melting characteristic, which has been believed to be very difficult to produce, is now able to be produced in a very shorter period than before.

    摘要翻译: 在以溶胶 - 凝胶法为原料使用的原料的有机 - 无机混合玻璃材料的制造中,本发明涉及有机 - 无机混合玻璃材料的制造方法,其特征在于, 在起始原料的混合步​​骤和熔融步骤之间存在加热反应步骤,并且在熔融步骤之后进一步进行老化步骤。 根据本发明,现在能够以非常短的时间生产满足耐热性以及气密性和低熔点特性的有机 - 无机混合玻璃材料,这被认为是非常难以生产的。 期间比以前。

    Method for fabricating silica glass using sol-gel process
    10.
    发明授权
    Method for fabricating silica glass using sol-gel process 失效
    使用溶胶 - 凝胶法制造石英玻璃的方法

    公开(公告)号:US06860118B2

    公开(公告)日:2005-03-01

    申请号:US10179704

    申请日:2002-06-25

    CPC分类号: C03B19/12

    摘要: The present invention discloses a method for fabricating silica glass using a sol-gel process, which includes a sol forming step for forming a sol by mixing a starting material, deionized water and an additive together; gelation step for gelatinizing the sol after filling a circular mold with the gel produced; gel drying step for separating the gel from the circular mold and drying the gel; setting step for placing the gel inside of a heat chamber and injecting helium gas into the heat chamber; and low heat treatment step for pressurizing and depressurizing an internal pressure of the heat chamber repeatedly for several times.

    摘要翻译: 本发明公开了一种使用溶胶 - 凝胶法制造石英玻璃的方法,其包括通过将原料,去离子水和添加剂混合在一起而形成溶胶的溶胶形成步骤; 用生成的凝胶填充圆形模具之后使溶胶凝胶化的凝胶化步骤; 凝胶干燥步骤,用于将凝胶与圆形模具分离并干燥凝胶; 凝固步骤,用于将凝胶放置在加热室内部并将氦气注入加热室中; 以及低热处理步骤,用于反复加热和减压加热室的内部压力数次。