Mechanical Behavior of Sintered Porous Two-Phase Titanium Nanolaminate-Composites at High Temperatures

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Abstract:

Regularities, features and mechanisms of deformation and fracture processes of new ceramic materials – porous (=3-35 %) two-phase titanium nanolaminate-composites Ti3SiC2/TiC, Ti3AlC2/TiC, Ti4AlN3/TiN (content of TiC or TiN – 5-70 % vol.) at 20-1300 оС are established. Composites are made by reaction sintering. On increase in mechanical properties and resistance to deformation they settle down in the following sequence: Ti3AlC2/TiC–Ti4AlN3/TiN–Ti3SiC2/TiC. In porous nanolaminate-composites containing less than 20 % TiC the increase in porosity  results in decrease in high-temperature strength pl and increase of plasticity . Appreciable increase of strength of porous composites is marked at content TiC>25-30 % (vol.).

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300-303

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March 2009

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© 2009 Trans Tech Publications Ltd. All Rights Reserved

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[1] M.W. Barsoum: Prog. Solid State Chem. Vol. 28 (2000), p.201.

Google Scholar

[2] S.A. Firstov and E.P. Pechkovsky, in: Proceedings Deformation and Fracture in Structural PM Materials, Stara Lesna, Slovak Republic (2002), p.67.

Google Scholar

[3] S.A. Firstov, E.P. Pechkovsky, I.I. Ivanova: High Temp. Mater. Processes Vol. 25 (2006), p.47.

Google Scholar

[4] S.A. Firstov, V.F. Gorban' and E. P. Pechkovsky: Proceedings of Kharkov Nanotechnology Congress-2008, edited by I.M. Neklyudov and V.M. Shulayev, Kharkov Vol. I (2008), p.232.

Google Scholar