Abstract

A method is proposed for the study of the heat resistance of samples of high-temperature composite materials via local laser heating of their surface in a supersonic flow. The performed studies allow the strategic selection of high-temperature materials based on the intensity of erosion with simultaneous laser and gasdynamic effects. The ablation rates of composite materials were experimentally determined at implemented surface temperatures of 2100–2300 K and blowing with a supersonic flow at a Mach number M = 2. The effect of the various additive materials, including carbides and oxides of Hf, Si, Ta, and Zr, on the ablation rate was studied. The data can be used as recommendations in the selection of formulations for high-temperature composite materials.

中文翻译：

---

超声流中激光加热高温复合材料的耐热性测试

摘要

提出了一种通过超声速对复合材料样品表面进行局部激光加热来研究其耐热性的方法。进行的研究可以根据腐蚀的强度，同时具有激光和气体动力学效应，对高温材料进行战略选择。复合材料的烧蚀速率是在2100–2300 K的实施表面温度下通过实验确定的，并以Mach数M = 2的超音速吹气进行吹扫。各种添加剂材料的作用，包括Hf，Si，Ta的碳化物和氧化物，和Zr，对烧蚀率进行了研究。该数据可用作选择高温复合材料配方的建议。