The thermal explosion method was used to synthesize pure MoAlB. First of all, thermodynamic evaluation of the synthesis based on the Gibbs potentials was performed. The thermal explosion was initiated by synthesis in hydrogen atmosphere at 500–900 °C. The analysis of the synthesized materials was carried out by X-ray diffraction and electron microscopy along with local chemical analysis. As a result, a monophase MoAlB powder with the elongated plate-like crystals with a thickness of 250–500 nm and a length of 10–15 μm in an equiatomic ratio of elements with lattice parameters = 3.2114 Å, = 13.9736 Å, = 3.1034 Å were synthesized. Thus, for the first time, a mechanism has been proposed for preparing the MoAlB phase by thermal explosion through the borane's decomposition, which is probably realized during the synthesis in hydrogen medium.

中文翻译：

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MoAlB的热爆炸合成

采用热爆法合成了纯MoAlB。首先，基于吉布斯势对合成进行热力学评价。热爆炸是在 500-900 °C 的氢气气氛中合成引发的。通过 X 射线衍射和电子显微镜以及局部化学分析对合成材料进行了分析。结果，单相 MoAlB 粉末具有厚度为 250–500 nm、长度为 10–15 μm 的细长板状晶体，元素等原子比晶格参数 = 3.2114 Å, = 13.9736 Å, = 3.1034合成了 Å。因此，首次提出了一种通过硼烷分解热爆炸制备MoAlB相的机制，这可能是在氢介质中合成过程中实现的。