Ternary-layered Cr2AlB2 synthesized from Cr, Al, and B powders by a molten salt-assisted method

被引：14

作者：

Wang, Ying ^{[1
,2
]}

Yang, Ling Xu ^{[3
]}

Liu, Rui Jia ^{[1
,2
]}

Liu, Hui Jun ^{[3
]}

Zeng, Chao Liu ^{[3
]}

Zhu, Sheng Long ^{[1
]}

Fu, Chao ^{[3
]}

机构：

[1] Chinese Acad Sci, Inst Met Res, Shenyang 110016, Peoples R China

[2] Univ Sci & Technol China, Sch Mat Sci & Engn, Shenyang 110016, Peoples R China

[3] Songshan Lake Mat Lab, Dongguan 523808, Peoples R China

来源：

POWDER TECHNOLOGY | 2021年 / 387卷 / 387期

关键词：

MAB phase; Cr2AlB2; Powder; Molten salt-assisted method; Mechanism; LARGE-SCALE SYNTHESIS; CHROMIUM BORIDES; CR3ALB4; COMPOSITES; TI3ALC2;

D O I：

10.1016/j.powtec.2021.04.042

中图分类号：

TQ [化学工业];

学科分类号：

0817 ;

摘要：

Herein we report amethod for rapid synthesis of Cr2AlB2 from Cr, Al, and B elemental powders. Effects of Cr/Al/B molar ratio in precursors, temperature, duration and mass ratio of the salt to precursors on Cr2AlB2 formation are investigated. Additionally, the synthesis process of Cr2AlB2 is also discussed. Results show that the temperature plays a key role in the formation of Cr2AlB2. Well crystalline Cr2AlB2 powders are successfully synthesized from 2Cr/2Al/2B precursors and NaCl-KCl molten salt with their mass ratio of 1:1 at 1100 degrees C within 0.5 h. Cr2AlB2 exhibits nanolaminated structure with plate-like grain morphology. The particle size of the obtained Cr2AlB2 powder is dramatically decreased with the addition of NaCl-KCl molten salt in precursors. (C) 2021 Elsevier B.V. All rights reserved.

引用

页码：354 / 362

页数：9

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