Abstract In the work the SHS synthesis of MAX phases from Ti-Si-C system were carried and initiated with use of 30 W laser beam with 40 µm spot. That kind of initiation allows locally and rapidly start the SHS synthesis and avoid the contamination coming from heating wire present during conventional method. The reaction was monitored by high-accuracy radiation pyrometer and high quality optical camera. The recorded data, together with reaction bed thermal conductivity measurements allowed to correlate to obtained powders composition and reaction speed. The reaction bed morphology was investigated by scanning electron microscopy with element distribution (EDS). The second part of the paper concerns laser reactive deposition of SHS in-situ synthetized MAX phases layer on silicon carbide substrate. The paths of deposited layer were formed under argon overpressure of 2 bar using 120 W of laser power.

中文翻译：

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激光引发 Ti 3 SiC 2 粉末和涂层合成

摘要 在这项工作中，使用具有 40 µm 光斑的 30 W 激光束进行并引发了来自 Ti-Si-C 系统的 MAX 相的 SHS 合成。这种启动允许局部快速启动 SHS 合成，并避免传统方法中存在的加热丝造成的污染。反应由高精度辐射高温计和高质量光学相机监测。记录的数据与反应床热导率测量值一起允许与获得的粉末组成和反应速度相关联。通过具有元素分布（EDS）的扫描电子显微镜研究反应床形态。论文的第二部分涉及在碳化硅衬底上 SHS 原位合成 MAX 相层的激光反应沉积。