Transforming the amorphous Ti-Al-C coatings to high-purity Ti2AlC MAX phase coatings by prolonged annealing at 550 °C
Transforming the amorphous Ti-Al-C coatings to high-purity Ti2AlC MAX phase coatings by prolonged annealing at 550 °C
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通过550℃长时间退火将非晶Ti-Al-C涂层转变为高纯Ti2AlC MAX相涂层
DOI：
10.1016/j.matlet.2019.127160
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发表时间：
2020-02
影响因子：
3
通讯作者：
Aiying Wang
中科院分区：
文献类型：
--
作者：
Zhenyu Wang;Wentao Li;Cuicui Wang;Haichen Wu;Peiling Ke;Aiying Wang
Ti2AlC MAX相以其独特的性能被认为是核能等恶劣环境中具有发展前景的保护涂层材料。然而，Ti2AlC涂层的高制备温度（通常≥700°C）是其在温度敏感基板上进一步应用的主要障碍。利用低温长时间退火过程中的表面动力学概念，本文报道了一种在550℃下转化非晶Ti-Al-C涂层制备高纯度Ti2AlC涂层的简单策略。从微观组织演变的角度探讨了Ti2AlC MAX相的相变机理。
Ti2AlC MAX phases have been considered as the promising protective coating materials in nuclear energy and other harsh environments due to their unique properties. However, high preparation temperatures of Ti2AlC coatings, generally ≥700 °C, are the main barriers to their further application on temperature-sensitive substrates. Taking the concept of surface dynamics during prolonged annealing at low-temperatures, herein we reported a quite facile strategy to fabricate high-purity Ti2AlC coatings by transforming amorphous Ti-Al-C coatings at 550 °C. The transformation mechanisms of Ti2AlC MAX phase were also discussed in terms of their microstructural evolutions.
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通讯作者：
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