The structural-functional integrated TiB₂/Al–Mg-Gd composite was fabricated by the powder metallurgy-based methods, including atomized composite powder fabrication, spark plasma sintering and hot extrusion techniques. In this manner, the atomization process effectively refined Gd-contained phases and dispersed TiB₂ particles in composite powders. Such refinement was inherited to the as-extruded composite. In detail, the finer Gd-contained phase was confirmed to be τ(MgNi₂-type) Laves phase. Functionally, the composite had high thermal neutron shielding efficiency (99%), which was higher than the published results for neutron shielding materials. This phenomenon was analyzed by the Shmakov-Yamamoto model. The theoretical simulation showed that the refinement of τ phases played a key role in improving the neutron shielding property, which agreed well with experiment results. Structurally, the yield strength, tensile strength and elongation of the TiB₂/Al–Mg-Gd composite were 353 ± 5 MPa, 464 ± 6 MPa and 15.6 ± 0.4%, respectively. Such mechanical properties were considerably higher over available neutron shielding materials. Regarding the improved yield strength, both solution strengthening effect and grain refinement strengthening effect were quantitatively analyzed to be the major strengthen contributors. Finally, this novel composite can be a promising candidate for neutron shielding materials in future.

结构-功能一体化的TiB ₂ /Al-Mg-Gd复合材料采用粉末冶金方法制造，包括雾化复合粉末制造、放电等离子烧结和热挤压技术。以这种方式，雾化过程有效地细化了含Gd相并将TiB ₂颗粒分散在复合粉末中。这种细化继承了挤压复合材料。详细地，更细的含 Gd 相被证实为 τ(MgNi ₂-type) Laves 阶段。在功能上，该复合材料具有较高的热中子屏蔽效率（99%），高于已发表的中子屏蔽材料结果。用 Shmakov-Yamamoto 模型分析了这一现象。理论模拟表明，τ相的细化对提高中子屏蔽性能起到了关键作用，与实验结果吻合较好。_{从结构上看，TiB 2}的屈服强度、抗拉强度和伸长率/Al-Mg-Gd 复合材料分别为 353 ± 5 MPa、464 ± 6 MPa 和 15.6 ± 0.4%。这种机械性能比可用的中子屏蔽材料要高得多。关于提高屈服强度，定量分析固溶强化效应和晶粒细化强化效应是主要的强化贡献者。最后，这种新型复合材料在未来有望成为中子屏蔽材料的候选者。