Fabrication of Ti3AlC2 Powder with High-Purity by Pressureless Sintering
|Periodical||Materials Science Forum (Volumes 475 - 479)|
|Edited by||Z.Y. Zhong, H. Saka, T.H. Kim, E.A. Holm, Y.F. Han and X.S. Xie|
|Citation||Chun Qing Peng et al., 2005, Materials Science Forum, 475-479, 1247|
|Online since||January, 2005|
|Authors||Chun Qing Peng, Chang An Wang, Liang Qi, Yong Huang|
|Keywords||B2O3, High Purity, Pressureless Synthesis, Ti3AlC2 Powder|
In this work, a new method to fabricate high-purity Ti3AlC2 powder by pressureless sintering (PLS) was reported through adding a little amount of B2O3 as a low-temperature aid. The elemental Ti, Al, and active carbon powders were used as raw materials with the molar ratio of 3 : 1.2 : 2. The effect of sintering temperature on the purity of Ti3AlC2 was investigated at the range of 800°C to 1400°C. The results showed that high-purity Ti3AlC2 powders, in which almost no TiC phase could be found, were stably fabricated by pressureless synthesis at 1400°C for 5 mins in flow Ar atmosphere. The roles of B2O3 addition were discussed in the paper.