本发明公开了一种基于金属基弥散微封装燃料的燃料元件及堆芯结构，燃料元件包括燃料基体，所述燃料基体内弥散有燃料颗粒，所述基体上开设有热管孔，所述热管孔用于插入热管；燃料基体单个作为堆芯基体，或者多个所述燃料基体沿轴向和/或径向拼接作为堆芯基体。一种堆芯结构，包括上述的燃料元件，以及约束该燃料元件的容器。本发明通过改进燃料元件及堆芯结构，采用难熔金属基材料，设计出了模块化的多孔燃料元件及新的堆芯结构，利于降低燃料运行温度、减小制造难度、提高堆芯安全性和运行寿期。

The invention discloses a micro-packaging based on metal-based dispersion. The fuel element and the core structure of the fuel, the fuel lement includes the fuel The fuel matrix is dispersed with fuel particles, and the matrix is dispersed with fuel particles. A heat pipe hole is opened on the body, and the heat pipe hole is used to insert the heat pipe ; the fuel matrix is single as the core matrix, or multiple as the fuel matrix. The matrix is spliced axially and / or radially as the core matrix. A The core structure, including the above fuel elements, and the constraints of the combustion Container of material element. The invention improves the fuel element and the reactor core. Structure, using refractory metal-based materials, designed a modular 

Porous fuel element and new core structure are beneficial to reduce fuel transportation. Row temperature, reduce manufacturing difficulty, improve core safety and operation time.