Niobium doped silica titania glass and method of preparation
    4.
    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

    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
    5.
    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

    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。

    BORON-DOPED TITANIA-SILICA GLASS HAVING VERY LOW CTE SLOPE
    10.
    发明申请
    BORON-DOPED TITANIA-SILICA GLASS HAVING VERY LOW CTE SLOPE 有权
    BORON-DOPED TITANIA-SILICA玻璃具有非常低的CTE斜率

    公开(公告)号:US20150259239A1

    公开(公告)日:2015-09-17

    申请号:US14637516

    申请日:2015-03-04

    Abstract: A boron-doped titania-silica glass containing 0.1 wt % to 8.0 wt % boron, 9.0 wt % to 16.0 wt % TiO2, and 76.0 wt % to 90.9 wt % SiO2. The glass may further include F, Nb, Ta, Al, Li, Na, K, Ca, and Mg, individually or in combinations of two or more, at levels up to 4 wt %. The glass may have an OH concentration of more than 10 ppm. The glass features a CTE slope at 20° C. of less than 1 ppb/K2. The fictive temperature of the glass is less than 825° C. and the peak CTE of the glass is less than 30 ppb/K. The glass has two crossover temperatures and a wide temperature interval over which CTE is close to zero. The uniformity of each crossover temperature relative to its average over a volume of at least 50 cm3 is within ±5° C.

    Abstract translation: 含有0.1重量%至8.0重量%硼,9.0重量%至16.0重量%TiO 2和76.0重量%至90.9重量%SiO 2的硼掺杂二氧化钛 - 二氧化硅玻璃。 玻璃还可包含F,Nb,Ta,Al,Li,Na,K,Ca和Mg,其含量可高达4wt%,分别或两种或多种组合。 玻璃的OH浓度可能超过10ppm。 玻璃在20°C时的CTE斜率小于1 ppb / K2。 玻璃的假想温度小于825℃,玻璃的峰值CTE小于30ppb / K。 玻璃具有两个交叉温度和CTE接近零的宽温度区间。 每个交叉温度相对于其在至少50cm 3的体积上的平均值的均匀度在±5℃以内

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