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    Silica glass containing TiO2 and process for its production
    172.
    发明授权
    Silica glass containing TiO2 and process for its production 有权
    含二氧化硅的硅玻璃及其生产工艺

    公开(公告)号：US07538052B2

    公开(公告)日：2009-05-26

    申请号：US11957855

    申请日：2007-12-17

    Applicant: Yasutomi Iwahashi ,  Akio Koike

    Inventor： Yasutomi Iwahashi ,  Akio Koike

    IPC: C03C3/06 ,  C03B20/00 ,  C03B19/06 ,  C03B37/018

    CPC classification number: C03B19/1415 ,  C03B19/1461 ,  C03B2201/12 ,  C03B2201/42 ,  C03C3/06 ,  C03C2201/12 ,  C03C2201/23 ,  C03C2201/42 ,  C03C2203/40 ,  C03C2203/54

    Abstract: A silica glass containing TiO2, which has a fictive temperature of at most 1,200° C., a F concentration of at least 100 ppm and a coefficient of thermal expansion of 0±200 ppb/° C. from 0 to 100° C.A process for producing a silica glass containing TiO2, which comprises a step of forming a porous glass body on a target quartz glass particles obtained by flame hydrolysis of glass-forming materials, a step of obtaining a fluorine-containing porous glass body, a step of obtaining a fluorine-containing vitrified glass body, a step of obtaining a fluorine-containing formed glass body and a step of carrying out annealing treatment.

    Abstract translation: 含有TiO 2的二氧化硅玻璃，其假想温度为至多1200℃，F浓度为至少100ppm，热膨胀系数为0±200ppb /℃，为0〜100℃。 含有TiO 2的二氧化硅玻璃的制造方法，其包括在通过玻璃形成材料的火焰水解得到的目标石英玻璃粒子上形成多孔玻璃体的工序，得到含氟多孔玻璃体的工序， 获得含氟玻璃化玻璃体，获得含氟成形玻璃体的步骤和进行退火处理的步骤。

    Silica glass containing TiO2 and process for its production
    174.
    发明授权
    Silica glass containing TiO2 and process for its production 有权
    含二氧化硅的硅玻璃及其生产工艺

    公开(公告)号：US07419924B2

    公开(公告)日：2008-09-02

    申请号：US11589875

    申请日：2006-10-31

    Applicant: Akio Koike ,  Yasutomi Iwahashi ,  Yasuyuki Takimoto ,  Shinya Kikugawa

    Inventor： Akio Koike ,  Yasutomi Iwahashi ,  Yasuyuki Takimoto ,  Shinya Kikugawa

    IPC: C03C3/06 ,  C03C3/076 ,  C03C3/112 ,  C03B20/00

    CPC classification number: C03C3/06 ,  C03B19/1453 ,  C03B2201/12 ,  C03B2201/23 ,  C03B2201/42 ,  C03C2201/12 ,  C03C2201/23 ,  C03C2201/42

    Abstract: It is to provide a silica glass containing TiO2, having a wide temperature range wherein the coefficient of thermal expansion is substantially zero.A silica glass containing TiO2, which has a TiO2 concentration of from 3 to 10 mass %, a OH group concentration of at most 600 mass ppm and a Ti3+ concentration of at most 70 mass ppm, characterized by having a fictive temperature of at most 1,200° C., a coefficient of thermal expansion from 0 to 100° C. of 0±150 ppb/° C., and an internal transmittance T400-700 per 1 mm thickness in a wavelength range of from 400 to 700 nm of at least 80%. A process for producing a silica glass containing TiO2, which comprises porous glass body formation step, F-doping step, oxygen treatment step, densification step and vitrification step.

    Abstract translation: 提供含有TiO 2的二氧化硅玻璃，其具有宽的温度范围，其中热膨胀系数基本上为零。 含有TiO 2浓度为3〜10质量％，OH基浓度为600质量ppm以下且Ti 3 +浓度为70质量ppm以下，其特征在于具有至多1200℃的假想温度，0〜100℃的热膨胀系数为0±150ppb /℃。 并且在400至700nm的波长范围内每1mm厚度的内部透射率T 400-700 至少为80％。 一种制备含有TiO 2的二氧化硅玻璃的方法，其包括多孔玻璃体形成步骤，F掺杂步骤，氧处理步骤，致密化步骤和玻璃化步骤。

    Mixed powder and a method for producing quartz glass using the powder
    175.
    发明申请
    Mixed powder and a method for producing quartz glass using the powder 有权
    混合粉末和使用粉末生产石英玻璃的方法

    公开(公告)号：US20080053151A1

    公开(公告)日：2008-03-06

    申请号：US11897406

    申请日：2007-08-30

    Applicant: Tatsuhiro Sato

    Inventor： Tatsuhiro Sato

    IPC: C03B19/00 ,  C03C3/078 ,  C03C3/095 ,  C03C3/112

    CPC classification number: C03C1/00 ,  C03B19/063 ,  C03B32/005 ,  C03B2201/12 ,  C03B2201/20 ,  C03B2201/24 ,  C03B2201/36 ,  C03C3/06 ,  C03C3/112 ,  C03C4/20 ,  C03C2201/12 ,  C03C2201/23 ,  C03C2201/24 ,  C03C2201/26 ,  C03C2201/32 ,  C03C2201/3411 ,  C03C2201/3435 ,  C03C2201/36

    Abstract: A mixed quartz powder contains quartz powder and two or more types of doping element in an amount of from 0.1 to 20 mass %. The aforementioned doped elements include a first dope element selected from the group consisting of N, C and F, and a second dope element selected from the group consisting of Mg, Ca, Sr, Ba, Sc, Y, Ti, Zr, Hf, the lanthanides and the actinides. The “quartz powder” is a powder of crystalline quartz or it is a powder of glassy SiO2 particles. It is made form natural occurring quartz or it is fabricated synthetically. The “quartz powder” may be doped. The compounding ratio of the total amount (M1) of the aforementioned first elements and the total amount (M2) of the aforementioned second elements as the ratio of the number of atoms (M1)/(M2) is preferably from 0.1 to 20. Al as well as the aforementioned doped elements is preferably included in a mixed quartz powder of this invention.

    Abstract translation: 混合石英粉含有0.1〜20质量％的石英粉和2种以上的掺杂元素。 上述掺杂元素包括选自N，C和F的第一掺杂元素和选自Mg，Ca，Sr，Ba，Sc，Y，Ti，Zr，Hf的第二掺杂元素， 镧系元素和锕系元素。 “石英粉”是结晶石英的粉末，或是玻璃状SiO 2颗粒的粉末。 它由天然石英制成，或者由合成制成。 可以掺杂“石英粉”。 上述第一元素的总量（M1）与上述第二元素的总量（M2）的配位比优选为0.1〜20。作为原子数（M1）/（M2）的比例，优选为0.1〜20。 以及上述掺杂元素优选包括在本发明的混合石英粉末中。

    Method of forming optical fiber preforms
    177.
    发明授权
    Method of forming optical fiber preforms 有权
    形成光纤预制棒的方法

    公开(公告)号：US07089766B2

    公开(公告)日：2006-08-15

    申请号：US11034359

    申请日：2005-01-10

    Applicant: Gerald E. Burke ,  Steven B. Dawes ,  V. Srikant ,  Pushkar Tandon

    Inventor： Gerald E. Burke ,  Steven B. Dawes ,  V. Srikant ,  Pushkar Tandon

    IPC: C03B37/018 ,  C03B37/029

    CPC classification number: G03F7/70216 ,  C03B19/1407 ,  C03B19/1415 ,  C03B19/1423 ,  C03B19/1453 ,  C03B37/01202 ,  C03B37/01406 ,  C03B37/01413 ,  C03B37/0142 ,  C03B37/0146 ,  C03B2201/12 ,  C03B2203/22 ,  C03B2207/02 ,  C03B2207/06 ,  C03B2207/08 ,  C03B2207/14 ,  C03B2207/20 ,  C03B2207/30 ,  C03B2207/38 ,  C03B2207/40 ,  C03B2207/42 ,  C03B2207/46 ,  C03B2207/54 ,  C03B2207/70 ,  C03B2207/81 ,  C03C3/06 ,  C03C2201/12 ,  C03C2201/20 ,  C03C2201/23 ,  C03C2201/30 ,  C03C2201/32 ,  F23D14/22 ,  F23D14/32 ,  G03F1/60 ,  G03F7/70958

    Abstract: Methods, apparatus and precursors for producing substantially water-free silica soot, preforms and glass. The methods and apparatus make substantially water-free fused silica preforms or glass by removing water as a reaction product, removing water from the atmosphere, removing water from the transport process, or combinations thereof. In a first embodiment, substantially water-free soot, preforms or glass are achieved by using a hydrogen-free fuel, such as carbon monoxide, in the deposition process. In another embodiment, a soot producing burner has parameters that enable operation on a substantially hydrogen-free fuel. End burners, which minimize water production, are also described. Such water-free methods are useful in depositing fluorine-doped soot because of the low water present and the efficiency in which fluorine is incorporated. In another embodiment, glassy barrier layer methods and apparatus are described for minimizing dopant migration, especially fluorine. Laser and induction methods and apparatus for forming the barrier layer are depicted. A chlorine, fluorine and silica precursor, such as chlorofluorosilane, may be utilized to form fluorinated soot. Other methods and apparatus are directed to combinations of conventional and substantially water-free processes. One embodiment is directed to combustion enhancing additives for addition to the substantially hydrogen-free fuels. The methods and apparatus in accordance with the invention are particularly useful for producing photomask substrates and optical fiber preforms.

    Abstract translation: 用于生产基本上无水的二氧化硅烟灰，预成型件和玻璃的方法，装置和前体。 该方法和装置通过除去水作为反应产物，从大气中除去水分，从运输过程中除去水或其组合，从而使基本上无水的熔融二氧化硅预制件或玻璃。 在第一实施方案中，在沉积工艺中通过使用无氢燃料如一氧化碳来实现基本上无水的烟灰，预型体或玻璃。 在另一个实施方案中，产生烟灰的燃烧器具有能够在基本上无氢燃料上操作的参数。 还描述了最小化水的生产的终端燃烧器。 这种无水方法由于存在低的水和掺入氟的效率而用于沉积氟掺杂烟灰。 在另一个实施例中，描述了用于最小化掺杂剂迁移，特别是氟的玻璃状阻挡层方法和装置。 描述了用于形成阻挡层的激光和感应方法和装置。 可以使用氯，氟和二氧化硅前体，例如氯氟硅烷来形成氟化烟灰。 其它方法和装置涉及常规和基本无水方法的组合。 一个实施方案涉及用于加入基本上无氢燃料的燃烧增强添加剂。 根据本发明的方法和装置特别适用于制造光掩模基片和光纤预制棒。

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