中科微点-全球专利检索

  1. Login
  2. Sign Up

Search Results

178 records (took 0.019 seconds)

    Method for producing iron-doped silica glass
    101.
    发明授权
    Method for producing iron-doped silica glass 有权
    铁掺杂石英玻璃的制造方法

    公开(公告)号：US09593034B2

    公开(公告)日：2017-03-14

    申请号：US14916608

    申请日：2014-09-11

    Applicant: Heraeus Quarzglas GmbH & Co. KG

    Inventor： Stefan Ochs

    IPC: C03B19/06 ,  C03C3/06 ,  C03B37/014 ,  C03B25/02

    CPC classification number: C03B19/06 ,  C03B25/02 ,  C03B37/01413 ,  C03B37/01446 ,  C03B2201/075 ,  C03B2201/40 ,  C03C3/06 ,  C03C2203/00

    Abstract: A method for producing a blank of iron-doped silica glass with high silicic acid content for use as heat protection glass is provided. The method involves: (a) producing an iron-doped SiO2 soot body which contains iron in a first oxidation state Fe3+ by flame hydrolysis of a silicon-containing and an iron-containing starting substance, (b) drying the soot body to obtain a mean hydroxyl group content of less than 10 ppm by weight, and (c) vitrifying the soot body under a reducing atmosphere that is suitable for at least partially reducing the iron from the first oxidation state Fe3+ to a second, lower oxidation state Fe2+. A blank is obtained having an iron content between 0.1 and 1% by weight which exhibits an internal transmission of at most 40% in the infrared wavelength range and an internal transmission of at least 85% in the visible spectral range.

    Abstract translation: 本发明提供一种用于制造具有高硅酸含量的掺铁石英玻璃的坯料作为保温玻璃的方法。 该方法包括：（a）通过含硅和含铁起始物质的火焰水解生产含有第一氧化态Fe 3+的铁的掺铁SiO 2烟灰体，（b）干燥烟灰体以获得 平均羟基含量小于10重量ppm，和（c）在适于将铁从第一氧化态Fe 3+至少部分还原为第二次氧化态Fe2 +的还原气氛下使烟灰体玻璃化。 获得的铁含量为0.1至1重量％的空白，其在红外波长范围内具有至多40％的内部透光率，在可见光谱范围内内透光率至少为85％。

    Niobium doped silica titania glass and method of preparation
    105.
    发明授权
    Niobium doped silica titania glass and method of preparation 有权
    掺铌二氧化硅玻璃及其制备方法

    公开(公告)号：US08987155B2

    公开(公告)日：2015-03-24

    申请号：US13973428

    申请日：2013-08-22

    Applicant: Corning Incorporated

    Inventor： Sezhian Annamalai ,  Steven Bruce Dawes ,  Kenneth Edward Hrdina

    IPC: C03C3/06 ,  C03C3/097 ,  C03C3/076 ,  C03C3/095 ,  C03C4/00 ,  C03B19/12

    CPC classification number: C03C3/097 ,  C03B19/12 ,  C03B2201/075 ,  C03B2201/23 ,  C03B2201/40 ,  C03B2201/42 ,  C03C3/06 ,  C03C3/076 ,  C03C3/095 ,  C03C4/0085 ,  C03C2201/23 ,  C03C2201/40 ,  C03C2201/42 ,  C03C2203/34 ,  C03C2203/42 ,  C03C2203/50

    Abstract: This disclosure is directed to a silica-titania-niobia glass and to a method for making the glass. The composition of the silica-titania-niobia (SiO2—TiO2—Nb2O5) glass, determined as the oxides, is Nb2O5 in an amount in the range of 0.005 wt. % to 1.2 wt. %, TiO2 in an amount in the range of 5 wt. % to 10 wt. %, and the remainder of glass is SiO2. In the method, the STN glass precursor is consolidated into a glass by heating to a temperature of 1600° C. to 1700° C. in flowing helium for 6 hours to 10 hours. When this temperature is reached, the helium flow can be replaced by argon for the remainder of the time. Subsequently the glass is cooled to approximately 1050° C., and then from 1050° C. to 700° C. followed by turning off the furnace and cooling the glass to room temperature at the natural cooling rate of the furnace.

    Abstract translation: 本公开涉及二氧化硅 - 二氧化钛 - 铌玻璃和制造该玻璃的方法。 作为氧化物测定的二氧化硅 - 二氧化钛 - 氧化铌（SiO2-TiO2-Nb2O5）玻璃的组成为Nb2O5，其量为0.005重量％ ％〜1.2重量％ ％，TiO 2的量为5wt。 ％〜10重量％ ％，玻璃的其余部分为SiO2。 在该方法中，通过在流动氦中加热至1600℃至1700℃的温度6小时至10小时，将STN玻璃前体固结成玻璃。 当达到这个温度时，氦气流可以在一段时间内用氩气代替。 随后将玻璃冷却至约1050℃，然后冷却至1050℃至700℃，随后关闭炉，并以炉的自然冷却速率将玻璃冷却至室温。

    NIOBIUM DOPED SILICA TITANIA GLASS AND METHOD OF PREPARATION
    108.
    发明申请
    NIOBIUM DOPED SILICA TITANIA GLASS AND METHOD OF PREPARATION 有权
    铌酸钡硅酸盐玻璃及其制备方法

    公开(公告)号：US20140066286A1

    公开(公告)日：2014-03-06

    申请号：US13973428

    申请日：2013-08-22

    Applicant: CORNING INCORPORATED

    Inventor： Sezhian Annamalai ,  Steven Bruce Dawes ,  Kenneth Edward Hrdina

    IPC: C03C3/097 ,  C03B19/12 ,  C03C3/06

    CPC classification number: C03C3/097 ,  C03B19/12 ,  C03B2201/075 ,  C03B2201/23 ,  C03B2201/40 ,  C03B2201/42 ,  C03C3/06 ,  C03C3/076 ,  C03C3/095 ,  C03C4/0085 ,  C03C2201/23 ,  C03C2201/40 ,  C03C2201/42 ,  C03C2203/34 ,  C03C2203/42 ,  C03C2203/50

    Abstract: This disclosure is directed to a silica-titania-niobia glass and to a method for making the glass. The composition of the silica-titania-niobia (SiO2—TiO2—Nb2O5) glass, determined as the oxides, is Nb2O5 in an amount in the range of 0.005 wt. % to 1.2 wt. %, TiO2 in an amount in the range of 5 wt. % to 10 wt. %, and the remainder of glass is SiO2. In the method, the STN glass precursor is consolidated into a glass by heating to a temperature of 1600° C. to 1700° C. in flowing helium for 6 hours to 10 hours. When this temperature is reached, the helium flow can be replaced by argon for the remainder of the time. Subsequently the glass is cooled to approximately 1050° C., and then from 1050° C. to 700° C. followed by turning off the furnace and cooling the glass to room temperature at the natural cooling rate of the furnace.

    Abstract translation: 本公开涉及二氧化硅 - 二氧化钛 - 铌玻璃和制造该玻璃的方法。 作为氧化物测定的二氧化硅 - 二氧化钛 - 氧化铌（SiO2-TiO2-Nb2O5）玻璃的组成为Nb2O5，其量为0.005重量％ ％〜1.2重量％ ％，TiO 2的量为5wt。 ％〜10重量％ ％，玻璃的其余部分为SiO2。 在该方法中，通过在流动氦中加热至1600℃至1700℃的温度6小时至10小时，将STN玻璃前体固结成玻璃。 当达到这个温度时，氦气流可以在一段时间内用氩气代替。 随后将玻璃冷却至约1050℃，然后冷却至1050℃至700℃，随后关闭炉，并以炉的自然冷却速率将玻璃冷却至室温。

Patent Agency Ranking