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Fabrication of Ti3AlC2 Powder with High-Purity by Pressureless Sintering

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Abstract:

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.

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Periodical:

Materials Science Forum (Volumes 475-479)

Pages:

1247-1250

DOI:

https://doi.org/10.4028/www.scientific.net/MSF.475-479.1247

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Online since:

January 2005

Authors:

Chun Qing Peng, Chang An Wang, Liang Qi, Yong Huang

Keywords:

B2O3, High Purity, Pressureless Synthesis, Ti3AlC2 Powder

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© 2005 Trans Tech Publications Ltd. All Rights Reserved

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