Modification of alkaline earth silicate fibres
    2.
    发明公开
    Modification of alkaline earth silicate fibres 审中-公开
    碱土硅酸盐纤维的改性

    公开(公告)号:EP1939148A1

    公开(公告)日:2008-07-02

    申请号:EP08151094.3

    申请日:2005-10-26

    IPC分类号: C03C13/00 C03B37/04

    CPC分类号: C03C13/00

    摘要: A method of making refractory alkaline earth silicate fibres from a melt, comprises the use as an intended component of alkali metal but not including where at least 75mol% of the alkali metal is potassium to improve the mechanical properties of the fibre in comparison with a fibre free of alkali metal.

    摘要翻译: 由熔体制备难熔碱土硅酸盐纤维的方法包括用作碱金属的预期组分,但不包括其中至少75mol%碱金属是钾以提高纤维与纤维相比机械性能的钾 不含碱金属。

    GLASS FIBRES
    3.
    发明公开
    GLASS FIBRES 有权
    玻璃纤维

    公开(公告)号:EP1890977A1

    公开(公告)日:2008-02-27

    申请号:EP06743948.9

    申请日:2006-05-19

    IPC分类号: C03C13/00 C03C13/06

    摘要: A glass fibre formable from a melt by a rotary process and having a diameter less than 5µm and comprising in weight percent: SiO2 62 to 75 wt%, alkaline earth metal oxide 13 to 25 wt%, alkali metal oxide 8 to 15 wt%, B2O3 0 to 8 wt%, M2O3 0.5 to 3 wt% in which M is Al, a transition element, a lanthanide or a mixture thereof with these named ingredients comprising greater than or equal to 90 wt% and less than or equal to 100 wt% of the glass composition provides blankets having superior temperature resistance to conventional glass wools, and superior insulating performance (i.e. lower thermal conductivity) than an alkaline earth silicate fibre while being soluble in body.

    DENSE, SELF-SINTERED SILICON CARBIDE/CARBON-GRAPHITE COMPOSITE AND PROCESS FOR PRODUCING SAME
    5.
    发明授权
    DENSE, SELF-SINTERED SILICON CARBIDE/CARBON-GRAPHITE COMPOSITE AND PROCESS FOR PRODUCING SAME 失效
    其制造致密的,自碳化硅/石墨复合碳和方法

    公开(公告)号:EP0746532B2

    公开(公告)日:2007-05-30

    申请号:EP94909546.7

    申请日:1994-02-04

    摘要: A dense, self-sintered silicon carbide/carbon-graphite composite material and a process for producing the composite material is disclosed. The composite material comprises a silicon carbide matrix, between 2 and 30 percent by weight carbon-graphite, and small amounts of sintering aids such as boron and free carbon. The silicon carbide has an average grain size between 2 and 15 mu m, and the carbon-graphite has an average grain size between 10 and 75 mu m, the average grain size of the carbon-graphite being greater than the average grain size of the silicon carbide. The composite material has a density of at least 80 percent of theoretical density as determined by the rule of mixtures for a composite material. This density is achieved with minimal microcracking at a high graphite loading with large graphite particles. The composite material exhibits good lubricity and wear characteristics, resulting in improved tribological performance. The process for producing the composite material uses a carbon-bonded graphite comprising at least 5 percent by weight carbon-precursor binder.