Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
HIGH-ENTROPY CERAMIC INERT MATRIX DISPERSION FUEL PELLET AND PREPARATION METHOD THEREFOR
Disclosed in the present invention are a high-entropy ceramic inert matrix dispersion fuel pellet and a preparation method therefor. The preparation method comprises: S 1, preparing raw material powder into a slurry and mixed powder, respectively; S2, spraying the slurry on the surfaces of rolling fuel particles, and drying to form a coating layer adhered to the surface of the fuel particles; S3, preparing a core biscuit and a core-shell biscuit; S4, loading the core biscuit into the core-shell biscuit, and performing heat treatment to obtain a ceramic green body; and S5, performing solution and sintering treatment to form a densified high-entropy ceramic inert matrix dispersion fuel pellet. The high-entropy ceramic inert matrix dispersion fuel pellet is prepared by means of an in-situ reaction-solid solution sintering two-step method, and the characteristics that the fuel pellet is high in heat conductivity, low in swelling, easy to post-process, suitable for industrial production and the like are achieved: the nuclear fuel containment under the condition that a nuclear reactor cladding is damaged is improved, the leakage of the nuclear fuel is prevented, and the nuclear power safety is improved; and the high-temperature resistance of the nuclear fuel is improved, and the application of the nuclear fuel in a high-temperature reactor is promoted.
HIGH-ENTROPY CERAMIC INERT MATRIX DISPERSION FUEL PELLET AND PREPARATION METHOD THEREFOR
Disclosed in the present invention are a high-entropy ceramic inert matrix dispersion fuel pellet and a preparation method therefor. The preparation method comprises: S 1, preparing raw material powder into a slurry and mixed powder, respectively; S2, spraying the slurry on the surfaces of rolling fuel particles, and drying to form a coating layer adhered to the surface of the fuel particles; S3, preparing a core biscuit and a core-shell biscuit; S4, loading the core biscuit into the core-shell biscuit, and performing heat treatment to obtain a ceramic green body; and S5, performing solution and sintering treatment to form a densified high-entropy ceramic inert matrix dispersion fuel pellet. The high-entropy ceramic inert matrix dispersion fuel pellet is prepared by means of an in-situ reaction-solid solution sintering two-step method, and the characteristics that the fuel pellet is high in heat conductivity, low in swelling, easy to post-process, suitable for industrial production and the like are achieved: the nuclear fuel containment under the condition that a nuclear reactor cladding is damaged is improved, the leakage of the nuclear fuel is prevented, and the nuclear power safety is improved; and the high-temperature resistance of the nuclear fuel is improved, and the application of the nuclear fuel in a high-temperature reactor is promoted.
HIGH-ENTROPY CERAMIC INERT MATRIX DISPERSION FUEL PELLET AND PREPARATION METHOD THEREFOR
BRENNSTOFFPELLET MIT HOHER ENTROPIE UND INERTER KERAMIKMATRIXDISPERSION UND HERSTELLUNGSVERFAHREN DAFÜR
PASTILLE DE COMBUSTIBLE À DISPERSION EN MATRICE INERTE EN CÉRAMIQUE À HAUTE ENTROPIE ET PROCÉDÉ DE PRÉPARATION S'Y RAPPORTANT
XUE JIAXIANG (Autor:in) / WU LIXIANG (Autor:in) / ZHANG XIANSHENG (Autor:in) / REN QISEN (Autor:in) / LIAO YEHONG (Autor:in) / ZHANG YONGDONG (Autor:in)
19.06.2024
Patent
Elektronische Ressource
Englisch
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