This paper gives an oil‐based granulation approach to realize the efficient preparation of Li₂O breeder materials, which solve the problems of long preparation cycle, high manufacturing cost and difficult to be homogenization and densification in the past. Li₂O precursor spheres with narrow size distribution and uniform spherical shape can be obtained using paraffin oil as binders. The Li₂O feed powder with bimodal size distribution will self‐organize to form a core‐shell structured sphere during granulation, in which the core and shell are composed of small particles and large particles, respectively. Notably, the Li₂O ceramic spheres sintered at 900°C can achieve a crush load of 40.69 ± 4.01 N and a theoretical density of 79.66% TD, which was not achievable by the methods reported in the previous literature. The strategy proposed in this work not only can be easily extended to other material systems but also opens up a new avenue for the design and preparation of tritium breeder materials with uniform size distribution and satisfactory mechanical properties.

中文翻译：

---

油基造粒法高效制备核壳型Li2O育种材料

本文提出了一种油基造粒的方法，以实现Li ₂ O助种剂材料的高效制备，解决了以往制备周期长，制造成本高，难以均质化和致密化的问题。使用石蜡油作为粘结剂，可以获得粒度分布窄，球形均匀的Li ₂ O前体球。具有双峰分布的Li ₂ O饲料粉在造粒过程中会自组织形成核壳结构的球体，其中核和壳分别由小颗粒和大颗粒组成。值得注意的是，李₂在900°C下烧结的O陶瓷球可以实现40.69±4.01 N的压溃载荷和79.66％TD的理论密度，这是以前文献中报道的方法无法实现的。这项工作中提出的策略不仅可以轻松地扩展到其他材料系统，而且还为设计和制备具有均匀尺寸分布和令人满意的机械性能的tri育种材料开辟了一条新途径。