Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
High-thermal-conductivity and high-density SiCf/SiC nuclear fuel cladding tube and preparation method thereof
The invention provides a SiCf/SiC nuclear fuel cladding tube and a preparation method thereof, and the preparation method comprises the following steps: step 1, preparation of a SiC fiber preform: wrapping the surface of a SiC fiber woven body with a layer of SiC short fiber mesh tire, introducing SiC short fibers into the SiC fiber woven body by adopting a needling technology, and uniformly distributing the SiC short fibers in the radial direction to obtain the SiC fiber preform; 2, preparing an interface layer; step 3, depositing a SiC substrate at a first stage; step 4, preparing and dipping ceramic slurry; step 5, second-stage SiC matrix deposition is carried out; and step 6, preparing the MAX phase modified SiC coating. According to the preparation method, on the basis of a two-dimensional woven SiC fiber preform, SiC needled fibers are introduced in the radial direction through the needling technology, the number of SiCf/SiC core cladding radial heat conduction channels is increased, and the radial heat conduction performance of the cladding tube is greatly improved.
本发明提供了一种SiCf/SiC核燃料包壳管及其制备方法，包括：步骤一，SiC纤维预制体制备：在SiC纤维编织体表面包裹一层SiC短纤维网胎，采用针刺技术将SiC短纤维引入SiC纤维编织体，使SiC短纤维在径向均匀分布，得到SiC纤维预制体；步骤二，界面层制备；步骤三，第一阶段SiC基体沉积；步骤四，陶瓷浆料制备与浸渍；步骤五，第二阶段SiC基体沉积；步骤六，MAX相改性SiC涂层制备。本发明的制备方法在二维编织SiC纤维预制体的基础上，通过针刺技术在径向引入SiC针刺纤维，增加了SiCf/SiC核包壳径向导热通道，大大提高了包壳管的径向导热性能。
High-thermal-conductivity and high-density SiCf/SiC nuclear fuel cladding tube and preparation method thereof
The invention provides a SiCf/SiC nuclear fuel cladding tube and a preparation method thereof, and the preparation method comprises the following steps: step 1, preparation of a SiC fiber preform: wrapping the surface of a SiC fiber woven body with a layer of SiC short fiber mesh tire, introducing SiC short fibers into the SiC fiber woven body by adopting a needling technology, and uniformly distributing the SiC short fibers in the radial direction to obtain the SiC fiber preform; 2, preparing an interface layer; step 3, depositing a SiC substrate at a first stage; step 4, preparing and dipping ceramic slurry; step 5, second-stage SiC matrix deposition is carried out; and step 6, preparing the MAX phase modified SiC coating. According to the preparation method, on the basis of a two-dimensional woven SiC fiber preform, SiC needled fibers are introduced in the radial direction through the needling technology, the number of SiCf/SiC core cladding radial heat conduction channels is increased, and the radial heat conduction performance of the cladding tube is greatly improved.
本发明提供了一种SiCf/SiC核燃料包壳管及其制备方法，包括：步骤一，SiC纤维预制体制备：在SiC纤维编织体表面包裹一层SiC短纤维网胎，采用针刺技术将SiC短纤维引入SiC纤维编织体，使SiC短纤维在径向均匀分布，得到SiC纤维预制体；步骤二，界面层制备；步骤三，第一阶段SiC基体沉积；步骤四，陶瓷浆料制备与浸渍；步骤五，第二阶段SiC基体沉积；步骤六，MAX相改性SiC涂层制备。本发明的制备方法在二维编织SiC纤维预制体的基础上，通过针刺技术在径向引入SiC针刺纤维，增加了SiCf/SiC核包壳径向导热通道，大大提高了包壳管的径向导热性能。
High-thermal-conductivity and high-density SiCf/SiC nuclear fuel cladding tube and preparation method thereof
一种高导热高致密SiCf/SiC核燃料包壳管及其制备方法
CHEN BO (Autor:in) / FAN SHANGWU (Autor:in) / YANG SHAOBO (Autor:in) / MA YUJIE (Autor:in) / KOU SIJIE (Autor:in)
05.04.2024
Patent
Elektronische Ressource
Chinesisch
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