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Methods of forming ceramic matrix composites using sacrificial fibers and non-wetting coating
Methods for preparing ceramic matrix composites using melt infiltration are provided as well as the resulting ceramic matrix composites. The methods and products include the incorporation of a non-wetting coating to one or more sacrificial fibers. The one or more sacrificial fibers are removed, such as decomposed during pyrolysis, resulting in the formation of a plurality of functional features, in the form of regular and elongate channels along the ceramic matrix composite. During the removing of the one or more sacrificial fibers, the non-wetting coating remains on an interior surface of the plurality of functional features to block infiltration of an infiltrant to the plurality of functional features and deposition thereon. Alternatively, the sacrificial fibers may be removed subsequent to melt infiltration.
提供了一种使用熔体渗透制备陶瓷基复合物的方法以及所得的陶瓷基复合物。该方法和产品包括将非润湿涂层掺入一个或多个牺牲纤维中。去除一个或多个牺牲纤维，例如在热解期间分解，从而沿着陶瓷基复合物形成规则和细长通道形式的多个功能特征。在去除一个或多个牺牲纤维的过程中，非润湿涂层保留在多个功能特征的内表面上，以阻止渗透剂渗透到多个功能特征并沉积在其上。或者，可以在熔体渗透之后去除牺牲纤维。
Methods of forming ceramic matrix composites using sacrificial fibers and non-wetting coating
Methods for preparing ceramic matrix composites using melt infiltration are provided as well as the resulting ceramic matrix composites. The methods and products include the incorporation of a non-wetting coating to one or more sacrificial fibers. The one or more sacrificial fibers are removed, such as decomposed during pyrolysis, resulting in the formation of a plurality of functional features, in the form of regular and elongate channels along the ceramic matrix composite. During the removing of the one or more sacrificial fibers, the non-wetting coating remains on an interior surface of the plurality of functional features to block infiltration of an infiltrant to the plurality of functional features and deposition thereon. Alternatively, the sacrificial fibers may be removed subsequent to melt infiltration.
提供了一种使用熔体渗透制备陶瓷基复合物的方法以及所得的陶瓷基复合物。该方法和产品包括将非润湿涂层掺入一个或多个牺牲纤维中。去除一个或多个牺牲纤维，例如在热解期间分解，从而沿着陶瓷基复合物形成规则和细长通道形式的多个功能特征。在去除一个或多个牺牲纤维的过程中，非润湿涂层保留在多个功能特征的内表面上，以阻止渗透剂渗透到多个功能特征并沉积在其上。或者，可以在熔体渗透之后去除牺牲纤维。
Methods of forming ceramic matrix composites using sacrificial fibers and non-wetting coating
使用牺牲纤维和非润湿涂层形成陶瓷基复合物的方法
DANIEL GENE DUNN (Autor:in) / MCGUIGAN HENRY CHARLES (Autor:in)
22.06.2021
Patent
Elektronische Ressource
Chinesisch
IPC:
C04B
Kalk
,
LIME
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