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A platform for research: civil engineering, architecture and urbanism
Silicon carbide composite cladding and preparation method thereof
The invention discloses a silicon carbide composite cladding and a preparation method thereof. The preparation method comprises the following steps: S1, providing silicon carbide slurry; s2, enabling silicon carbide continuous long fibers to pass through the silicon carbide slurry, and enabling the silicon carbide continuous long fibers to be impregnated with the silicon carbide slurry; s3, weaving the silicon carbide continuous long fibers on the surface of the lining pipe to form a silicon carbide fiber woven layer; and S4, densification treatment is conducted on the silicon carbide fiber woven layer and an interface layer between the silicon carbide fiber woven layer and the lining pipe through a chemical vapor infiltration method. According to the preparation method of the silicon carbide composite cladding, the silicon carbide fiber braid layer dipped with the silicon carbide slurry is compounded on the outer surface of the lining pipe, and then densification treatment is performed, so that hole defects in fiber bundles and among the fiber bundles are reduced, the density is improved, the interface between the fibers and the lining pipe is regulated and controlled, and the toughness of the silicon carbide fiber braid layer is improved; and the silicon carbide composite cladding with high strength, high thermal conductivity and high compactness is obtained.
本发明公开了一种碳化硅复合包壳及其制备方法，制备方法包括：S1、提供碳化硅浆料；S2、将碳化硅连续长纤维通过所述碳化硅浆料，使所述碳化硅连续长纤维浸渍有碳化硅浆料；S3、将所述碳化硅连续长纤维在内衬管表面进行编织，形成碳化硅纤维编织层；S4、通过化学气相渗透法对所述碳化硅纤维编织层以及所述碳化硅纤维编织层与所述内衬管之间的界面层进行增密处理。本发明的碳化硅复合包壳的制备方法，以浸渍有碳化硅浆料的碳化硅纤维编织层复合在内衬管外表面，再进行增密处理，降低纤维束内和束间的孔洞缺陷，提高致密度，调控纤维与内衬管之间界面，改善碳化硅纤维编织层的韧性，获得具有高强度、高热导、高致密的碳化硅复合包壳。
Silicon carbide composite cladding and preparation method thereof
The invention discloses a silicon carbide composite cladding and a preparation method thereof. The preparation method comprises the following steps: S1, providing silicon carbide slurry; s2, enabling silicon carbide continuous long fibers to pass through the silicon carbide slurry, and enabling the silicon carbide continuous long fibers to be impregnated with the silicon carbide slurry; s3, weaving the silicon carbide continuous long fibers on the surface of the lining pipe to form a silicon carbide fiber woven layer; and S4, densification treatment is conducted on the silicon carbide fiber woven layer and an interface layer between the silicon carbide fiber woven layer and the lining pipe through a chemical vapor infiltration method. According to the preparation method of the silicon carbide composite cladding, the silicon carbide fiber braid layer dipped with the silicon carbide slurry is compounded on the outer surface of the lining pipe, and then densification treatment is performed, so that hole defects in fiber bundles and among the fiber bundles are reduced, the density is improved, the interface between the fibers and the lining pipe is regulated and controlled, and the toughness of the silicon carbide fiber braid layer is improved; and the silicon carbide composite cladding with high strength, high thermal conductivity and high compactness is obtained.
本发明公开了一种碳化硅复合包壳及其制备方法，制备方法包括：S1、提供碳化硅浆料；S2、将碳化硅连续长纤维通过所述碳化硅浆料，使所述碳化硅连续长纤维浸渍有碳化硅浆料；S3、将所述碳化硅连续长纤维在内衬管表面进行编织，形成碳化硅纤维编织层；S4、通过化学气相渗透法对所述碳化硅纤维编织层以及所述碳化硅纤维编织层与所述内衬管之间的界面层进行增密处理。本发明的碳化硅复合包壳的制备方法，以浸渍有碳化硅浆料的碳化硅纤维编织层复合在内衬管外表面，再进行增密处理，降低纤维束内和束间的孔洞缺陷，提高致密度，调控纤维与内衬管之间界面，改善碳化硅纤维编织层的韧性，获得具有高强度、高热导、高致密的碳化硅复合包壳。
Silicon carbide composite cladding and preparation method thereof
碳化硅复合包壳及其制备方法
XUE JIAXIANG (author) / WU LIXIANG (author) / LIAO YEHONG (author) / YANG RONGKUN (author) / XIAO LING (author)
2023-12-26
Patent
Electronic Resource
Chinese
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