Paper Titles
Frictional Layer and Its Antifriction Effect in High-Purity Ti3SiC2 and TiC-Contained Ti3SiC2
p.1347
Sliding Friction Behavior of Bulk Ti3SiC2 under Difference Normal Pressures
p.1353
Tribo-Chemical Reaction in Bulk Ti3SiC2 under Sliding Friction
p.1357
Fabrication and Mechanical Properties of HAp/Ti3SiC2 (60 vol.%) Composite by Sparkle Plasma Sintering
p.1361
Fabrication and Properties of Ti3AlC2-Based Ceramics by Two-Step Method
p.1365
Synthesis of High Purity Ti3AlC2 Bulk Material by Hot-Pressing
p.1369
Bending Creep and Stress Relaxation of Ti3AlC2 at High Temperature
p.1373
Synthetic of Zr2Al3C5 Material
p.1379
Reaction Synthesized Boron Nitride-Containing Composites (BNCC)
p.1385

Fabrication and Properties of Ti3AlC2-Based Ceramics by Two-Step Method

Article Preview

Abstract:

A two-step method was presented to fabricate Ti3AlC2-based ceramics. The first step was to synthesize a reactive powder, which mainly contains Ti2AlC, by pressureless sintering (PLS) in argon at 1500°C for 10 mins with a heating rate of 20°C×min-1. The second step was to hot press the powder to a bulk material at 1300°C for 60 mins. The second step not only densified the powder, but also promoted the phase transformation from Ti2AlC to Ti3AlC2. The ceramic sample prepared by this method consists of Ti3AlC2, Ti2AlC and a little amount of TiC. It has excellent mechanical properties: density is 4.26 ± 0.02 g×cm-3, flexural strength is 664.4 ± 90 MPa, Vickers hardness is 6.4 ± 0.5 GPa, and fracture toughness (KIC) is 9.9 ± 0.5 MPa m1/2. The so high values of strength and fracture toughness are never reported in any literature about this material, as far as we aware.

You might also be interested in these eBooks
High-Performance Ceramics III View Preview

Info:

Periodical:

Key Engineering Materials (Volumes 280-283)

Pages:

1365-1368

DOI:

https://doi.org/10.4028/www.scientific.net/KEM.280-283.1365

Citation:

Cite this paper

Online since:

February 2007

Authors:

Chang An Wang, Ai Guo Zhou, Chun Qing Peng, Yong Huang

Keywords:

Ceramic, Mechanical Property, Ti3AlC2, Two-Step Method

Export:

RIS, BibTeX

Price:

Permissions CCC:

Request Permissions

Permissions PLS:

Request Permissions

Сopyright:

© 2005 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

References

[1] N. V. Tzenov and M. W. Barsoum: J. Am. Ceram. Soc. Vol. 83 (2000), p.825.

Google Scholar

[2] M. A. Pietzka and J. C. Schuster: J. Phase. Equi. Vol. 15 (1994), p.392.

Google Scholar

[3] A.G. Zhou and C. -A. Wang: J. Mater. Sci. Lett. Vol. 20 (2001), pp. (1971).

Google Scholar

[4] M. Lopacinski, J. Puszynski and J. Lis: J. Am. Ceram. Soc. Vol. 84 (2001), p.3051.

Google Scholar

[5] X. H. Wang and Y.C. Zhou: J. Mater. Chem. Vol. 12 (2002), p.455.

Google Scholar

[6] C. Q. Peng, C. -A. Wang and Y. Huang: Synthesis of High Purity Ti3AlC2 Bulk Material by Hot-pressing. This issue.

Google Scholar