Synthesis of Ti_2AlC by laser-induced self-propagating high-temperature sintering

摘要

The Ti_2AlC was synthesized by laser-induced self-propagating high-temperature sintering (SHS) using 2Ti/Al/C powders as raw material. Several additives were added in the raw materials including TiC, Sn and excess Al in order to improve the reaction. The results showed that the Ti_2AlC was synthesized by means of laser-induced SHS. The majority compounds were Ti_2AlC and TiC in the sample. The content of the Ti_2AlC in the sample was approximate 83%. The TiC or excess Al additives did not improve the synthesis of Ti_2AlC. However, the Sn additive improved the synthesis of Ti_2AlC obviously. For the raw material of 2Ti/Al/C/0.3Sn, the content of Ti_2AlC in the sample attained approximate 95%.