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Mechanical properties of porous Ti3SiC2/TiC, Ti3AlC2/TiC, and Ti4AlN3/TiN nanolaminates at 20 to 1300°C

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Powder Metallurgy and Metal Ceramics Aims and scope

The microindentation, macrohardness, and uniaxial compression methods are used to examine the effect of porosity (5–35%), content of the other phase (TiC or TiN, 5–70 vol.%), and loading temperature (20–1300°C) on the mechanical properties of Ti3SiC2/TiC, Ti3AlC2/TiC, and Ti4AlN3/TiN nanolaminate composites produced by reaction sintering of powder mixtures. A comparative analysis of the mechanical properties shows that the strength of the materials increases in the following sequence: Ti3AlC2/TiC, Ti4AlN3/TiN, and Ti3SiC2/TiC. Temperature–strain and force boundaries of their existence in the deformed state are established. Among all porous nanolaminate composites investigated, Ti3SiC2/TiC is the most optimal in respect to porosity, content of the other phase, and strength: 24% porosity and 30 vol.% titanium carbide.

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Authors and Affiliations

  1. Frantsevich Institute for Problems of Materials Science, National Academy of Sciences of Ukraine, Kiev, Ukraine

    S. A. Firstov, V. F. Gorban’, I. I. Ivanova & E. P. Pechkovskii

Authors
  1. S. A. Firstov
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  2. V. F. Gorban’
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  3. I. I. Ivanova
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  4. E. P. Pechkovskii
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Corresponding author

Correspondence to E. P. Pechkovskii.

Additional information

Translated from Poroshkovaya Metallurgiya, Vol. 49, No. 7–8 (474), pp. 56–68, 2010.

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Firstov, S.A., Gorban’, V.F., Ivanova, I.I. et al. Mechanical properties of porous Ti3SiC2/TiC, Ti3AlC2/TiC, and Ti4AlN3/TiN nanolaminates at 20 to 1300°C. Powder Metall Met Ceram 49, 414–423 (2010). https://doi.org/10.1007/s11106-010-9252-2

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  • DOI: https://doi.org/10.1007/s11106-010-9252-2

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