Detailed knowledge about physical and chemical properties of the SrZn₁₃ intermetallic compound is of technological importance in the design and manufacture of Sr-modified Zn-base alloys. The main objective of this study was to further knowledge of the mechanical and vibrational properties of the Al-incorporated Sr(Zn_1−xAl_x)₁₃ compound. The Sr(Zn_1−xAl_x)₁₃ was synthesized by melting down zinc ingots (high purity $>$ 99.98%) and 20 wt% Al–10Sr master alloy at 600 ^∘C for 1 h. Microstructural analysis by X-ray diffraction (XRD) and scanning electron microscopy (SEM) revealed the presence of a phase with the NaZn₁₃-type structure attributed to the solid solution Sr(Zn_1−xAl_x)₁₃. This compound showed a lower value of hardness (H) than that theoretically reported for the pure SrZn₁₃ compound but maintained the quasi-isotropic properties. The ductile behavior of the Sr(Zn_1−xAl_x)₁₃ is enhanced by the Al incorporation, as was displayed by DFT calculations. Several Raman vibrational modes arising for the breaking symmetry in the Zn sub-lattice were observed, which were mainly ascribed to the Al incorporation. Also, Raman measurements indicated possible formation of vacancies in the structure, which could be responsible for reducing experimental mechanical properties. Finally, it was determined that Raman spectroscopy is sensitive to the study of alloyed NaZn₁₃-type structure compounds.

有关SrZn ₁₃金属间化合物的物理和化学性质的详细知识在Sr改性的Zn基合金的设计和制造中具有技术重要性。这项研究的主要目的是进一步了解掺铝的Sr（Zn _{1- x} Al _x）₁₃化合物的力学和振动性能。通过熔化锌锭（高纯度）合成Sr（Zn _{1- x} Al _x）₁₃$>$99.98％）和20 wt％的Al-10Sr中间合金在 ^600∘C下持续1 h。通过X射线衍射（XRD）和扫描电子显微镜（SEM）进行的微结构分析表明，存在具有固溶Sr（Zn _{1- x} Al _x）₁₃的NaZn ₁₃型结构的相。该化合物显示出比理论上报道的纯SrZn ₁₃化合物更低的硬度（H）值，但保持了准各向同性的性质。Sr（Zn _{1- x} Al _x）₁₃的塑性行为如通过DFT计算所显示的，通过Al的掺入增强了Al。观察到Zn亚晶格断裂对称性产生的几种拉曼振型，主要归因于Al的引入。同样，拉曼测量表明可能在结构中形成空位，这可能是降低实验机械性能的原因。最后，确定拉曼光谱对合金化的NaZn ₁₃型结构化合物的研究敏感。