Mo(Si, Al)₂ coatings were synthesized through hot dipping of Mo rods into a commercial Al-12 wt.% Si alloy melt in the temperature range of 750 to 950 °C for 15 to 150 min. The structure of the coatings was characterized by X-ray diffraction analysis. In addition, optical and scanning electron microscopes along with energy dispersive spectroscopy were employed for microstructural and chemical analyses, respectively. For the sample treated at 750 °C, Mo(Si, Al)₂ layers were only formed at high dipping times. An increase in the temperature up to 850 °C facilitated the formation of the coatings and a uniform layer of Mo(Si, Al)₂ with 40 to 60 µm thickness was obtained after 60 min. However, a two-layer coating was observed after processing at 950 °C for 60 min. The first layer attached to the substrate mainly consisted of nano-sized Mo₅Si₃ particles dispersed in an Al₈Mo₃ matrix. The second layer had a microstructure containing Al₈Mo₃ and Mo(Si, Al)₂ phases. Furthermore, some transverse cracks were detected across the coatings obtained at both 850 °C and 950 °C. The rate of the formation of the coating obeyed the linear law and its activation energy was estimated by the Arrhenius equation as 110 kJ/mol.

Mo（Si，Al）₂涂层是通过将Mo棒热浸在温度范围为750至950°C的商用Al-12 wt。％Si合金熔体中15至150分钟而合成的。通过X射线衍射分析来表征涂层的结构。另外，光学和扫描电子显微镜以及能量色散光谱分别用于显微结构和化学分析。对于在750°C下处理的样品，仅在高浸渍时间下才形成Mo（Si，Al）₂层。温度升高到850°C有助于形成涂层和均匀的Mo（Si，Al）_2层60分钟后获得厚度为40至60 µm的薄膜。但是，在950°C下处理60分钟后，观察到两层涂层。附着在基材上的第一层主要由分散在Al ₈ Mo ₃基体中的纳米级Mo ₅ Si ₃颗粒组成。第二层具有包含Al ₈ Mo ₃和Mo（Si，Al）₂相的微观结构。此外，在850°C和950°C下获得的涂层上均检测到一些横向裂纹。涂层的形成速率服从线性定律，其活化能通过Arrhenius方程估算为110 kJ / mol。