Reaction Synthesis of (Ti,V)2AlC/Al2O3 Composite

Abstract:

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The (Ti,V)2AlC/Al2O3 solid solution composite has been synthesized by in situ aluminothermic reduction of the blend powders of Ti, Al, V2O5 and active carbon. The phase evolution during the formation of the composite was examined at the temperature from 500 °C to 1400 °C. Based on the results of X-ray diffractometry (XRD) and differential scanning calorimeter (DSC), a possible reaction mechanism was proposed to explain the formation of (Ti,V)2AlC/Al2O3 solid solution composite. Above the melting point of aluminum, liquid Al reacted with titanium to form the intermetallic compound of TiAl. As the temperature increased to 1300 °C, the intermetallic compound of TiAl reacted with TiC to form Ti2AlC. The microstructures of the as prepared samples were also analyzed by the scanning electron microscope (SEM) together with the election dispersive spectroscopy (EDS).

Info:

Periodical:

Advanced Materials Research (Volumes 230-232)

Edited by:

Ran Chen and Wenli Yao

Pages:

1274-1277

DOI:

10.4028/www.scientific.net/AMR.230-232.1274

Citation:

J. F. Zhu and N. Han, "Reaction Synthesis of (Ti,V)2AlC/Al2O3 Composite", Advanced Materials Research, Vols. 230-232, pp. 1274-1277, 2011

Online since:

May 2011

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$35.00

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