Molten salt synthesis of MAX phases in the Ti-Al-C system
Molten salt synthesis of MAX phases in the Ti-Al-C system
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DOI：
10.1016/j.jeurceramsoc.2018.06.034
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发表时间：
2018-11-01
影响因子：
5.7
通讯作者：
Shepherd, D.
中科院分区：
文献类型：
--
作者：
Galvin, T.;Hyatt, N. C.;Shepherd, D.
采用熔盐法从单质粉末中合成了MAX相化合物Ti 2AlC和Ti 3AlC 2。在900-1000 ℃之间，Ti 2AlC与辅助相TiC和TiAl一起形成，其丰度随着合成温度的升高而减少。改变化学计量并将合成温度提高到1300摄氏度导致形成Ti 3AlC 2以及Ti 2AlC和TiC。所用盐熔剂的类型对产物形成的影响不大。Ti 2AlC的反应途径被确定为TiCl的初始形成。在石墨和铝化钛上进行模板化。
The molten salt method was used to synthesise the MAX phase compounds Ti2AlC and Ti3AlC2 from elemental powders. Between 900-1000 degrees C, Ti2AlC was formed alongside ancillary phases TiC and TiAl, which decreased in abundance with increasing synthesis temperature. Changing the stoichiometry and increasing the synthesis temperature to 1300 degrees C resulted in formation of Ti3AlC2 alongside Ti2AlC and TiC. The type of salt flux used had little effect on the product formation. The reaction pathway for Ti2AlC was determined to be the initial formation of TiCi. templating on the graphite and titanium aluminides.