| abstract |
The invention discloses a tungsten-based metal-ceramic nuclear fuel pellet and a preparation method thereof. The pellet comprises a tungsten-based metal-ceramic matrix, and the tungsten-based metal-ceramic matrix has through-hole structures uniformly arranged in an array. The inner wall of the hole structure has a protective layer, and the protective layer completely covers the inner wall of the through hole structure. The invention avoids the direct contact between the ceramic phase inside the tungsten-based cermet matrix of the fuel pellet and the external environment, plays a protective role, and improves the safety and reliability of the operation of the tungsten-based cermet nuclear fuel pellet. |