Method of making a multi-perforated part out of ceramic matrix composite material
    38.
    发明授权
    Method of making a multi-perforated part out of ceramic matrix composite material 有权
    从陶瓷基复合材料制成多孔部件的方法

    公开(公告)号:US07238247B2

    公开(公告)日:2007-07-03

    申请号:US10786409

    申请日:2004-02-25

    IPC分类号: B32B37/00

    摘要: A fiber preform for constituting the fiber reinforcement of composite material is prepared and then consolidated by depositing sufficient matrix phase therein to bond the fibers together while not completely densifying the preform. Pins of rigid material are put into place through the consolidated preform and densification of the consolidated preform containing the pins is continued by depositing at least a ceramic matrix phase. Thereafter, at least a portion of each pin is eliminated so as to leave a calibrated perforation passing through the resulting part, the pins being made at least in part out of a material that can be eliminated by applying treatment that does not affect the ceramic material of the matrix.

    摘要翻译: 制备用于构成复合材料的纤维增强材料的纤维预制件,然后通过在其中沉积足够的基质相来固化,以将纤维粘合在一起,同时不完全致密化预成型体。 通过固结的预成型件将刚性材料的销插入到位,并且通过沉积至少一个陶瓷基体相继续进行包含销的固化的预成型体的致密化。 此后,消除每个销的至少一部分,以便留下通过所得部件的经校准的穿孔,所述销至少部分由通过施加不影响陶瓷材料的处理而被消除的材料制成 的矩阵。

    Methods and apparatus for forming a composite protection layer
    39.
    发明申请
    Methods and apparatus for forming a composite protection layer 审中-公开
    用于形成复合保护层的方法和装置

    公开(公告)号:US20070054103A1

    公开(公告)日:2007-03-08

    申请号:US11220817

    申请日:2005-09-07

    IPC分类号: D04H13/00

    摘要: A method for reducing oxidation in ceramic composites is provided. The method includes depositing a first portion of a silicon carbide (SiC) matrix over at least a portion of an article using a first chemical vapor infiltration (CVI) process, depositing a silicon (Si)-doped boron nitride (BN) layer within at least a portion of the SiC matrix using a second CVI process, and depositing a second portion of the SiC matrix within at least a portion or continuation of the first portion of the SiC matrix using a third CVI process.

    摘要翻译: 提供了一种降低陶瓷复合材料氧化的方法。 该方法包括使用第一化学气相渗透(CVI)工艺在物品的至少一部分上沉积碳化硅(SiC)基体的第一部分,在其中沉积硅(Si)掺杂的氮化硼(BN)层 使用第二CVI工艺的SiC矩阵的至少一部分,以及使用第三CVI工艺在所述SiC矩阵的第一部分的至少一部分或延续中沉积所述SiC矩阵的第二部分。