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Preparation of Nb3Al powder by chemical reaction in molten salts

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Abstract

Nb3Al nanoparticles were directly synthesized by metallothermic reduction process in the molten salts with mNbCl5–nAlCl3 powders as raw materials and sodium as reducing reagent. The effects of different feeding material orders, soaking time, Nb content in raw materials, and 3NbCl5–AlCl3 content in molten salts on the obtained Nb3Al powder were discussed. The as-prepared samples were characterized by X-ray diffraction (XRD), scanning electron microscopy (SEM), and transmission electron microscopy (TEM). It is found that the only phase Nb3Al nanoparticles are obtained by controlling the variation of the feeding material orders, soaking time, and Nb content in raw materials. And the morphologies of as-prepared nanoparticles change owning to different 3NbCl5–AlCl3 contents in molten salts.

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Acknowledgments

This work was financially supported by the National Natural Science Foundation of China (Nos. 50934001, 21071014, 51102015, and 51401004), the Fundamental Research Funds for the Central Universities (Nos. FRF-AS-11-002A, FRF-TP-12-023A, and FRF-MP-09-006B), the National High Technology Research and Development Program of China (No. 2012AA062302), the Program of the Co-Construction with Beijing Municipal Commission of Education of China (Nos. 00012047 and 00012085), and the Program for New Century Excellent Talents in University (No. NCET-11-0577).

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Authors and Affiliations

  1. School of Materials Science and Engineering, Beijing University of Technology, Beijing, 100024, China

    Na Wang

  2. Tangshan Iron and Steel International Engineering Technology Co., Ltd, Tangshan, 063000, China

    Cai-Yun Huang

  3. School of Metallurgical and Ecological Engineering, University of Science and Technology Beijing, Beijing, 100083, China

    Na Wang, Yao Zhang & Hong-Min Zhu

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  1. Na Wang
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  2. Cai-Yun Huang
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  4. Hong-Min Zhu
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Correspondence to Na Wang.

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Wang, N., Huang, CY., Zhang, Y. et al. Preparation of Nb3Al powder by chemical reaction in molten salts. Rare Met. 41, 1671–1676 (2022). https://doi.org/10.1007/s12598-015-0523-4

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  • DOI: https://doi.org/10.1007/s12598-015-0523-4

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