Paper Title:
Effect of Sintering Temperature on Al2O3/TiAl Composite from Ti-Al-TiO2-Eu2O3 System
  Abstract

In this work, the composites were fabricated by in-situ synthesis reaction and hot-pressing using Ti, Al, TiO2 and Eu2O3 as starting materials. Effects of the sintering temperature on the microstructures and properties of the Al2O3/TiAl composites were investigated by X-ray diffraction (XRD), scanning electron microscopy (SEM) and universal properties tests. The result shows that the sintering temperature had effect on improving the mechanical properties of TiAl composites. The phase of the composites composed of γ-TiAl/α2-Ti3Al matrix and reinforcing phases of Al2O3 and EuAlO3. The grain size of composite was smaller than 0.5 µm at 1200 °C. And the mechanical properties reached to the maximum value (477.96 MPa and 9.73 MPa•m1/2). The properties decreased with grain growth at 1300 °C.

  Info
Periodical
Advanced Materials Research (Volumes 194-196)
Edited by
Jianmin Zeng, Taosen Li, Shaojian Ma, Zhengyi Jiang and Daoguo Yang
Pages
1732-1735
DOI
10.4028/www.scientific.net/AMR.194-196.1732
Citation
F. Wang, X. F. Wang, J. F. Zhu, L. Y. Xiang, "Effect of Sintering Temperature on Al2O3/TiAl Composite from Ti-Al-TiO2-Eu2O3 System", Advanced Materials Research, Vols. 194-196, pp. 1732-1735, 2011
Online since
February 2011
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Price
$32.00
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