Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Preparation method of silicon carbide fuel cladding
The invention discloses a preparation method of a silicon carbide fuel cladding. The preparation method comprises the following steps: S1, providing a solid graphite core mold; s2, preparing a SiC composite layer on the surface of the graphite core mold; the SiC composite layer comprises a densified SiC fiber braid layer and a first SiC layer compounded on the SiC fiber braid layer; and S3, the graphite core mold and the SiC composite layer are removed in an oxidation removal mode, and the silicon carbide fuel cladding is formed. According to the preparation method of the silicon carbide fuel cladding, the solid graphite core mold serves as a support, the SiC fiber woven layer and the composite SiC layer are formed on the solid graphite core mold through weaving, then the graphite core mold is removed, the silicon carbide fuel cladding of a multi-layer structure is prepared, the requirements for roundness and straightness of the cladding are met, and the internal stress of the cladding is small; the problem that demolding is difficult is solved, and the problem that a full-size cladding is difficult to demold is solved.
本发明公开了一种碳化硅燃料包壳的制备方法，包括以下步骤：S1、提供实心的石墨芯模；S2、在所述石墨芯模的表面上制备SiC复合层；所述SiC复合层包括经过增密的SiC纤维编织层、复合在所述SiC纤维编织层上的第一SiC层；S3、通过氧化去除方式去除所述石墨芯模，所述SiC复合层形成碳化硅燃料包壳。本发明的碳化硅燃料包壳的制备方法，以实心的石墨芯模作为支撑，通过在其上编织形成SiC纤维编织层以及复合SiC层，再去除石墨芯模，制得多层结构的碳化硅燃料包壳，满足包壳的圆度和直线度要求，较小包壳内应力；不具有难脱模的问题，解决全尺寸包壳存在的难脱模的问题。
Preparation method of silicon carbide fuel cladding
The invention discloses a preparation method of a silicon carbide fuel cladding. The preparation method comprises the following steps: S1, providing a solid graphite core mold; s2, preparing a SiC composite layer on the surface of the graphite core mold; the SiC composite layer comprises a densified SiC fiber braid layer and a first SiC layer compounded on the SiC fiber braid layer; and S3, the graphite core mold and the SiC composite layer are removed in an oxidation removal mode, and the silicon carbide fuel cladding is formed. According to the preparation method of the silicon carbide fuel cladding, the solid graphite core mold serves as a support, the SiC fiber woven layer and the composite SiC layer are formed on the solid graphite core mold through weaving, then the graphite core mold is removed, the silicon carbide fuel cladding of a multi-layer structure is prepared, the requirements for roundness and straightness of the cladding are met, and the internal stress of the cladding is small; the problem that demolding is difficult is solved, and the problem that a full-size cladding is difficult to demold is solved.
本发明公开了一种碳化硅燃料包壳的制备方法，包括以下步骤：S1、提供实心的石墨芯模；S2、在所述石墨芯模的表面上制备SiC复合层；所述SiC复合层包括经过增密的SiC纤维编织层、复合在所述SiC纤维编织层上的第一SiC层；S3、通过氧化去除方式去除所述石墨芯模，所述SiC复合层形成碳化硅燃料包壳。本发明的碳化硅燃料包壳的制备方法，以实心的石墨芯模作为支撑，通过在其上编织形成SiC纤维编织层以及复合SiC层，再去除石墨芯模，制得多层结构的碳化硅燃料包壳，满足包壳的圆度和直线度要求，较小包壳内应力；不具有难脱模的问题，解决全尺寸包壳存在的难脱模的问题。
Preparation method of silicon carbide fuel cladding
碳化硅燃料包壳的制备方法
XUE JIAXIANG (Autor:in) / WU LIXIANG (Autor:in) / LIAO YEHONG (Autor:in) / YANG RONGKUN (Autor:in) / LU ZHIWEI (Autor:in) / GAO SIYU (Autor:in)
22.12.2023
Patent
Elektronische Ressource
Chinesisch
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