Reaction Synthesis of TiAl-Al2O3 Composite

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Titanium aluminide composite reinforced with submicron Al2O3 has been prepared by a reactive hot press method using TiO2, Al and Ti powder as source materials. The reaction synthesis processing is particularly investigated. Results show that the matrix of the as-prepared material is a mixture of TiAl and a small amount of Ti3Al. Fine Al2O3 particles that act as reinforcing phase are dispersed along the interface of the matrix. The reduction of TiO2 involves many transitional stages, including Ti-Al reaction, TiO2-Ti reducing reaction, reaction between TiO2 and Al, etc.

Info:

Periodical:

Key Engineering Materials (Volumes 336-338)

Edited by:

Wei Pan and Jianghong Gong

Pages:

1397-1399

DOI:

10.4028/www.scientific.net/KEM.336-338.1397

Citation:

J. F. Zhu et al., "Reaction Synthesis of TiAl-Al2O3 Composite", Key Engineering Materials, Vols. 336-338, pp. 1397-1399, 2007

Online since:

April 2007

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Price:

$38.00

[1] N. Durlu. J: Euro. Ceram. Soc. Vol. 19 (1999), p.2415.

[2] N. J. Welham: Intermetallics Vol. 6 (1998), p.363.

[3] N. Claussen, D.E. Garcia, R. Janseen: J. Mater. Res. Vol. 11 (1996), p.2884.

[4] E.K.Y. Fu, R. D. Rawlings, H. B. Mcshane: J. Mat. Sci. Vol. 36 (2001), p.5537.

[5] M. Sujata, S. Bhargava and S. Sangal: J. Mat. Sci. Lett. Vol. 16 (1997), p.1175.

[6] A.O. Kunruth, T.R. Strohaecker, J.J. Moore: Scripta Mater. Vol. 34 (1996), p.183. Fig. 3 XRD spectra of Ti-Al-TiO2 composites hot-pressed at different temperatures.

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