Efficient synthesis of Ti3AlC2 powders with high purity by microwave-assisted molten salt method
Efficient synthesis of Ti3AlC2 powders with high purity by microwave-assisted molten salt method
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微波辅助熔盐法高效合成高纯度Ti3AlC2粉末
DOI：
10.1016/j.ceramint.2022.02.186
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发表时间：
2022-03
影响因子：
5.2
通讯作者：
Shaowei Zhang
中科院分区：
文献类型：
--
作者：
Keke Guan;Wen Lei;Honghong Wang;Xuefeng Liu;Jin Luo;Jianghao liu;Quanli Jia;Haijun Zhang;Shaowei Zhang
采用微波辅助熔盐法（MA-MS）制备了高纯度的Ti 3AlC 2粉体。系统地研究了原料配比、加热温度、反应物种类等合成工艺参数及形成机理。结果表明，以TiH 2/Al/1.8TiC混合物为原料，NaCl-KCl为熔盐，在1050 °C下微波加热30 min，可制备出纯度高达98.5%的Ti 3AlC 2粉末。与传统的加热方法相比，本实验合成的高纯Ti_3AlC_2粉末无论是合成温度还是保温时间都要温和得多。这种高效率的合成方法可以归因于熔融盐和微波加热的协同效应。TiH 2-Al-TiC原料比TiH 2-Al-C原料更适合于微波熔盐法快速合成高纯度的Ti 3AlC 2粉末。
In this work, Ti3AlC2powders with high purity were prepared by microwave-assisted molten salt method (MA-MS). The synthesis parameters (such as raw materials ratio, heating temperature and reactant materials) and the formation mechanisms were systematically investigated. The results indicate that Ti3AlC2powders with a high purity up to 98.5% are prepared using TiH2/Al/1.8TiC mixture as reactant materials, and NaCl–KCl as molten salt by microwave-assisted heating at 1050 °C for 30 min. Compared with traditional heating methods, both the synthesis temperature and holding time of highly pure Ti3AlC2powders synthesized in this work are much milder. This high-efficiency synthesis approach could be ascribed to the synergistic effect of molten salt and microwave heating. Moreover, the TiH2–Al–TiC starting material is more suitable for the rapid synthesis of Ti3AlC2powders with high purity via present microwave-assisted molten salt method than that TiH2–Al–C.
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作者：
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DOI：
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发表时间：
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