Synthesis and Properties of Ternary Carbide Ti3AlC2 Ceramics

Abstract:

Article Preview

Polycrystalline bulk samples of ternary carbide Ti3AlC2 ceramics were fabricated by reactively hot-pressing a mixture of Ti, Al, and graphite powders with and without Sn additive. The effects of sintering temperature, time and addition of Sn on the purity, mechanical properties and microstructure of Ti3AlC2 were investigated. The result showed that the TiC content was strongly influenced by sintering temperature for the Ti3AlC2 samples without Sn additive, and the most suitable sintering temperature to create the lowest TiC content was 1400°C. The addition of Sn additive led to a distinct decrease in TiC content. The flexural strength of the testing materials had close relation with the TiC content and sintering time. A certain content of TiC second phase and longer sintering time were helpful to improving the flexural strength. The sample sintered at 1400°C for 2 h possessed the highest flexural strength.

Info:

Periodical:

Key Engineering Materials (Volumes 336-338)

Edited by:

Wei Pan and Jianghong Gong

Pages:

1221-1224

DOI:

10.4028/www.scientific.net/KEM.336-338.1221

Citation:

Y. Zhou et al., "Synthesis and Properties of Ternary Carbide Ti3AlC2 Ceramics", Key Engineering Materials, Vols. 336-338, pp. 1221-1224, 2007

Online since:

April 2007

Keywords:

Export:

Price:

$38.00

[1] M.A. Pietzka and J.C. Schuster: J. Phase Equilib., Vol. 15 (1994), p.392.

[2] W. Jeitschko and H. Nowotny: Monatsh. Chem., Vol. 98 (1967), p.329.

[3] M.W. Barsoum and T. El-Raghy: J. Am. Ceram. Soc., Vol. 79 (1996), pp. (1953).

[4] H-I. Yoo, M.W. Barsoum and T. El-Raghy: Nature, Vol. 407 (2000), p.581.

[5] Z.M. Sun, Y.C. Zhou and M.S. Li: Corro. Sci., Vol. 43 (2001), p.1095.

[6] N.V. Tzenov and M.W. Barsoum: J. Am. Ceram. Soc., Vol. 83 (2000), p.825.

[7] X.H. Wang and Y.C. Zhou: J. Mater. Chem., Vol. 123 (2002), p.455.

[8] X.H. Wang and Y.C. Zhou: Acta Mater., Vol. 50 (2002), p.3141.

[9] M.W. Barsoum and T. El-Raghy: J. Appl. Phys., Vol. 87 (2000), p.1701.

In order to see related information, you need to Login.