The structure of the surface layer of ceramic composite materials (CCM) with the compositions HfB₂–SiC and SiC–TiC after exposure to a flow of dissociated air was investigated. X-ray structural analysis of the surface and analysis of the microstructure of the surface layer by means of scanning and transmission electron microscopy were performed. The features of the formation of glassy layers on the surface of CCM with refractory oxides distributed in them are shown. The interior volume of the materials contains unoxidized initial components.

中文翻译：

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由于暴露于高焓流，在陶瓷复合材料中形成玻璃层

研究了陶瓷复合材料 (CCM) 表面层的结构，其成分为 HfB ₂ -SiC 和 SiC-TiC，暴露于离解空气流后。通过扫描和透射电子显微镜进行了表面的X射线结构分析和表面层的微观结构分析。显示了在 CCM 表面形成玻璃层的特征，其中分布有难熔的氧化物。材料的内部体积包含未氧化的初始成分。