To improve the microstructure and properties of ZrB₂-SiC (ZrB₂-30 vol%SiC, Z7S3) coatings, a facile synthesis route involving induction plasma spheroidization (IPS) has been proposed, and the morphologies, particle size distributions, and phase compositions of the feedstock powders were analysed by scanning electron microscopy and focused ion beam techniques. The obtained results showed that the surfaces of the produced powders contained eutectic-like and granular zones. Owing to the existence of a temperature gradient, the internal microstructure of the IPS-treated powder exhibited a three-layered structure consisting of a ′surface shell′, a ′transition layer′, and a ′porous core′. Additionally, the properties of the IPS-treated samples were compared with those of the spray-dried (SD) powders. The former exhibited good plastic deformation properties, and their single splats contained flattened structures, while the single splats of the SD powder melted only partially retaining some of their original characteristics.

改善ZrB ₂ -SiC（ZrB ₂提出了-30vol％SiC，Z7S3）涂层的合成方法，该方法涉及感应等离子体球化（IPS），并且通过扫描电子显微镜和聚焦离子束分析了原料粉末的形貌，粒度分布和相组成。技术。所得结果表明，所生产的粉末的表面包含共晶状和粒状区域。由于存在温度梯度，经IPS处理的粉末的内部微观结构表现出由“表面壳”，“过​​渡层”和“多孔核”组成的三层结构。此外，将经过IPS处理的样品的性能与喷雾干燥（SD）粉末的性能进行了比较。前者表现出良好的塑性变形特性，并且它们的单个splats包含扁平结构，