Alkali resistant glass compositions
    4.
    发明申请
    Alkali resistant glass compositions 有权
    耐碱玻璃组合物

    公开(公告)号:US20060240967A1

    公开(公告)日:2006-10-26

    申请号:US11361694

    申请日:2006-02-24

    摘要: An alkali resistant glass composition having improved durability to withstand highly alkali environments at elevated temperatures, such as curing of cementitious products in an autoclave, is conveniently formed from economical and abundant materials. The glass composition includes increased levels of calcium and iron, and relatively low levels of alkali metals, as compared to many other alkali resistant glass products, and comprises essentially of, by weight, >35% Si2O3, 1-25% CaO, 1-15% Fe2O3, 1-10% R2O, and an amount of Al2O3 such that the ratio of Si2O3:Al2O3 is greater than or equal to 1. Alkali resistance can be improved by forming a passivity layer on the surface of glass articles by treating the articles hydrothermally in a basic environment. Optionally zirconia and/or titania may be added to the composition to further improve alkali resistance.

    摘要翻译: 通过经济且丰富的材料,可以方便地形成耐高温玻璃组合物,其具有改善的耐久性以耐高温下的高碱性环境,例如在高压釜中固化水泥产物。 与许多其它耐碱玻璃产品相比,玻璃组合物包括增加的钙和铁的水平以及相对低的碱金属含量,并且基本上包含重量比> 35%的Si 2 O 3%,1〜25%的CaO,1〜15%的Fe 2 O 3,1〜10%的R 2 / > O,以及一定量的Al 2 O 3 3,使得Si 2 O 3 O 3:Al的比例<! - SIPO

    Ceramic-ceramic composite material and production method
    5.
    发明授权
    Ceramic-ceramic composite material and production method 失效
    陶瓷陶瓷复合材料及其制备方法

    公开(公告)号:US4888311A

    公开(公告)日:1989-12-19

    申请号:US218286

    申请日:1988-06-10

    摘要: A composite ceramic-ceramic material is disclosed having a fibrous reinforcing ceramic and a ceramic matrix made of a geopolymeric compound containing:(a) a poly(sialate) geopolymer M.sub.n (--Si--O--Al--O--).sub.n and/or poly(sialate-siloxo) M.sub.n (--Si--O--Al--O--Si--O--).sub.n, M representing at least one alkaline cation, and n the degree of polymerization;(b) ultrafine silicious and/or aluminous and/or silico-aluminous constituents, of size smaller than 5 microns, preferably lower than 2 microns,the said geopolymeric compound being obtained by polycondensation at a temperature between 20.degree. C. and 120.degree. C. of an alkaline alumino-silicate reaction mixture, the composition of the principal constituents of the said geopolymeric compound expressed in terms of mole ratios of the oxides being between or equal to following values:M.sub.2 O/SiO.sub.2 --0.10 TO 0.95,SiO.sub.2 /Al.sub.2 O.sub.3 --2.50 TO 6.00,M.sub.2 O/Al.sub.2 O.sub.3 --0.25 TO 5.70,M.sub.2 O representing either Na.sub.2 O and/or K.sub.2 O, or a mixture of at least one alkaline oxide with CaO.The fibrous reinforcement consists of ceramic fibres such as SiC, Al.sub.2 O.sub.3, SiO.sub.2, glass, carbon. The addition of alkaline sulphides and alkaline sulphites enables glass fibres to be protected against chemical attack due to the alkalinity of the matrix.

    摘要翻译: PCT No.PCT / FR87 / 00396 Sec。 371日期:1988年6月10日 102(e)1988年6月10日PCT PCT日期:1987年10月13日PCT公布。 第WO88 / 02741号公报 公开了一种复合陶瓷陶瓷材料,其具有纤维增强陶瓷和由地质聚合物制成的陶瓷基体,所述地质聚合物包含:(a)聚(唾液酸酯)地质聚合物Mn(-Si-O-Al-O - )n和/或聚(唾液酸酯-Siloxo)Mn(-Si-O-Al-O-Si-O-)n,M表示至少一种碱性阳离子,n表示聚合度; (b)尺寸小于5微米,优选低于2微米的超细硅质和/或铝和/或硅铝质组分,所述地质聚合物通过在20℃至120℃的温度下缩聚得到 的碱性铝硅酸盐反应混合物,所述地质聚合物的主要成分的组成以氧化物的摩尔比表示,其摩尔比在以下值之间或之下:M 2 O / SiO 2 -0.10至0.95,SiO 2 / Al 2 O 3 - 2.50至6.00,M 2 O / Al 2 O 3 -0.25至5.70,代表Na 2 O和/或K 2 O的M 2 O,或至少一种碱性氧化物与CaO的混合物。 纤维增强材料由诸如SiC,Al2O3,SiO2,玻璃,碳等陶瓷纤维组成。 碱性硫化物和碱性亚硫酸盐的添加使玻璃纤维得以保护,防止由于基质的碱度引起的化学侵蚀。

    Alkali resistant glass compositions
    9.
    发明授权
    Alkali resistant glass compositions 有权
    耐碱玻璃组合物

    公开(公告)号:US07744689B2

    公开(公告)日:2010-06-29

    申请号:US11361694

    申请日:2006-02-24

    IPC分类号: C04B35/16

    摘要: An alkali resistant glass composition having improved durability to withstand highly alkali environments at elevated temperatures, such as curing of cementitious products in an autoclave, is conveniently formed from economical and abundant materials. The glass composition includes increased levels of calcium and iron, and relatively low levels of alkali metals, as compared to many other alkali resistant glass products, and comprises essentially of, by weight, >35% Si2O3, 1-25% CaO, 1-15% Fe2O3, 1-10% R2O, and an amount of Al2O3 such that the ratio of Si2O3:Al2O3 is greater than or equal to 1. Alkali resistance can be improved by forming a passivity layer on the surface of glass articles by treating the articles hydrothermally in a basic environment. Optionally zirconia and/or titania may be added to the composition to further improve alkali resistance.

    摘要翻译: 通过经济且丰富的材料,可以方便地形成耐高温玻璃组合物,其具有改善的耐久性以耐高温下的高碱性环境,例如在高压釜中固化水泥产物。 与许多其它耐碱玻璃产品相比,玻璃组合物包括增加的钙和铁含量以及相对较低的碱金属含量,并且基本上包含重量比> 35%的Si 2 O 3,1-25%的CaO, 15%的Fe 2 O 3,1〜10%的R 2 O和Al 2 O 3的量使得Si 2 O 3 :Al 2 O 3的比例大于或等于1.耐碱性可以通过在玻璃制品的表面上形成被动层来改善 在基础环境中水热制品。 可选地,氧化锆和/或二氧化钛可以加入到组合物中以进一步提高耐碱性。