Chemical vapor infiltration method with variable infiltration parameters
    5.
    发明授权
    Chemical vapor infiltration method with variable infiltration parameters 失效
    化学气相渗透法具有可变渗透参数

    公开(公告)号:US6001419A

    公开(公告)日:1999-12-14

    申请号:US930743

    申请日:1997-10-06

    摘要: Between the start and the end of the chemical vapor infiltration process, filtration conditions are modified by causing at least one of the following infiltration parameters to vary: retention time of the gas, pressure, temperature, concentration of precursor in the gas, and concentration of dopant, if any, in the gas; thereby adapting infiltration conditions to changes in the porometry of the substrate in order to control the microstructure of the material deposited within the substrate, in particular in order to conserve a microstructure that is constant.

    摘要翻译: PCT No.PCT / FR96 / 00530 Sec。 371日期:1997年10月6日 102(e)日期1997年10月6日PCT 1996年4月9日PCT PCT。 公开号WO96 / 31447 日期1996年10月10日在化学气相渗透过程的开始和结束之间,通过使至少一个以下渗透参数变化来改变渗透条件:气体的保留时间,压力,温度,前体浓度 气体和气体中掺杂剂的浓度(如果有的话); 从而使渗透条件适应于衬底的孔隙率的变化,以便控制沉积在衬底内的材料的微结构,特别是为了保持恒定的微结构。

    Tooling using thermostructural composite materials containing carbon for
heat treatment and/or thermochemical treatment installations
    6.
    发明授权
    Tooling using thermostructural composite materials containing carbon for heat treatment and/or thermochemical treatment installations 失效
    使用含碳的热结构复合材料进行热处理和/或热化学处理设备的模具

    公开(公告)号:US5996676A

    公开(公告)日:1999-12-07

    申请号:US732274

    申请日:1996-10-29

    摘要: An interposition layer (12) is formed on the outside surface of a part (10) made of thermostructural composite material containing carbon, and a metal case is formed by casting molten metal (22) around the part provided with its interposition layer. The interposition layer has closed porosity and it is proof against the metal of the case, such that shrinkage of the metal during cooling is absorbed by compacting or collapsing the porosity of the interposition layer, thereby preserving the integrity of the metal case, and the interposition layer constitutes a diffusion barrier preventing eutetics forming by contact between the metal of the case and the composite material.

    摘要翻译: PCT No.PCT / FR96 / 00373 Sec。 371日期1996年10月29日第 102(e)日期1996年10月29日PCT 1996年3月8日PCT公布。 出版物WO96 / 27570 日期1996年9月21日在由包含碳的热结构复合材料制成的部分(10)的外表面上形成介入层(12),并且通过将熔融金属(22)围绕设置有金属壳体 插入层 插入层具有封闭的多孔性,并且它抵抗壳体的金属,使得在冷却期间金属的收缩通过压实或塌缩插入层的孔隙而被吸收,从而保持金属壳体的完整性,并且插入 层构成通过壳体的金属与复合材料之间的接触防止形成的扩散阻挡层。

    Method of making a continuous coating on the surface of a part
    8.
    发明授权
    Method of making a continuous coating on the surface of a part 有权
    在零件的表面上形成连续涂层的方法

    公开(公告)号:US06926925B2

    公开(公告)日:2005-08-09

    申请号:US10250419

    申请日:2002-11-05

    摘要: A method and apparatus for a continuous coating of a part may include providing a separation layer made of a material that is weaker than the material of the coating to be made. The part may be placed on one or more supports, the supports coated with the separation layer. A continuity layer of a component material of the coating to be made is interposed between the part and the or each support, at least in vicinity of the or each support zone. The coating is formed by chemical vapor infiltration or deposition, and the part is then separated from the or each support by rupture within the separation layer, the continuity of the coating of the part in the or each support zone being provided by the portion of the coating that comes from the continuity layer that remains in place on the part.

    摘要翻译: 用于部件的连续涂覆的方法和装置可以包括提供由比待制造的涂层的材料弱的材料制成的分离层。 该部件可以放置在一个或多个支撑件上,涂覆有分离层的支撑件。 要制造的涂层的部件材料的连续层介于该部分和每个支撑件之间,至少在该支撑区域或每个支撑区域附近。 涂层通过化学气相渗透或沉积形成,然后通过分离层内的破裂将该部分与该支撑体或每个支撑体分离开,该部分或每个支撑区域中的部分的涂层的连续性由 来自连续性层的涂层,其保持在部件上的适当位置。

    Process for the manufacture of a composite material with refractory
fibrous reinforcement and ceramic matrix
    9.
    发明授权
    Process for the manufacture of a composite material with refractory fibrous reinforcement and ceramic matrix 失效
    制造具有耐火纤维增强材料和陶瓷基体的复合材料的方法

    公开(公告)号:US4752503A

    公开(公告)日:1988-06-21

    申请号:US756347

    申请日:1985-07-18

    申请人: Jacques Thebault

    发明人: Jacques Thebault

    IPC分类号: C04B35/80 C23C16/00 C23C16/26

    摘要: A thin, refractory, intermediate adhesive layer of laminar structure is deposited in oriented fashion on the reinforcing fibers by chemical vapor deposition, this intermediate layer having a greater elongation at break than the matrix and having a thickness of between 0.2 and 3 micrometers; the material forming the intermediate layer can be laminar pyrocarbon or boron nitride; the ceramic matrix is then infiltered, preferably by chemical vapor deposition, inside the pores of the reinforcement.

    摘要翻译: 层状结构的薄的耐火中间粘合剂层通过化学气相沉积以取向方式沉积在增强纤维上,该中间层具有比基体更大的断裂伸长率并且具有0.2至3微米的厚度; 形成中间层的材料可以是层状热解碳或氮化硼; 然后陶瓷基质优选通过化学气相沉积渗透到增强物的孔内。