In:
Materials Science Forum, Trans Tech Publications, Ltd., Vol. 816 ( 2015-4), p. 200-204
Abstract:
TiC/Ti 3 AlC 2 composites were successfully prepared by hot-pressing sintering method from the elemental powder mixtures of Ti, Al and TiC. A possible reaction mechanism was investigated by XRD. The density, Vickers hardness, flexural strength, and fracture toughness of the TiC/Ti 3 AlC 2 composites were also measured. At 660 °C, Al melted and reacted with Ti to form TiAl 3 . At 900 °C, TiAl 3 reacted with TiC and Ti to form Ti 2 AlC. At 1100 °C, Ti 2 AlC reacted with TiC to form Ti 3 AlC 2 . Increasing the sintering temperature, the content of Ti 3 AlC 2 increased. The TiC/Ti 3 AlC 2 composites had excellent performance after sintered at 1100 °C, the density, Vickers hardness, flexural strength and fracture toughness of the composite were 4.35 g/cm 3 , 4.72 GPa, 566 MPa and 6.18 MPa·m 1/2 , respectively.
Type of Medium:
Online Resource
ISSN:
1662-9752
DOI:
10.4028/www.scientific.net/MSF.816
DOI:
10.4028/www.scientific.net/MSF.816.200
Language:
Unknown
Publisher:
Trans Tech Publications, Ltd.
Publication Date:
2015
detail.hit.zdb_id:
2047372-2
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