Microstructure and Mechanical Properties of TiC/Ti₃AlC₂ In Situ Composites Prepared by Hot Pressing Method

Abstract:

TiC/Ti₃AlC₂ 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/Ti₃AlC₂ composites were also measured. At 660 °C, Al melted and reacted with Ti to form TiAl₃. At 900 °C, TiAl₃ reacted with TiC and Ti to form Ti₂AlC. At 1100 °C, Ti₂AlC reacted with TiC to form Ti₃AlC₂. Increasing the sintering temperature, the content of Ti₃AlC₂ increased. The TiC/Ti₃AlC₂ 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/cm³, 4.72 GPa, 566 MPa and 6.18 MPa·m^1/2, respectively.

• Periodical: Materials Science Forum (Volume 816)
• Pages: 200-204
• DOI: https://doi.org/10.4028/www.scientific.net/MSF.816.200
• Online since: April 2015
• Authors: Miao Miao Ruan*, Xiao Ming Feng, Tao Tao Ai, Ning Yu, Kui Hua
• Keywords: Composite, Mechanical Properties, Microstructure, Ti₃AlC₂

References

[1] Michel W. Barsoum, The MN+1AXN phases: A new class of solids thermodynamically stable nanolaminates, Prog Solid St Chem. 28 (2000) 201−281.

DOI: 10.1016/s0079-6786(00)00006-6

[2] X. H. Wang, Y. C. Zhou, Solid–liquid reaction synthesis of layered machinable Ti3AlC2 ceramic, J. Mater. Chem. 12 (2002) 455–460.

DOI: 10.1039/b108685e

[3] M. A. Pietzka, J. C. Schuster, Summary of constitutional data on the aluminium–carbon –titanium system, J. Phase Equilib. 15 (1994) 392–400.

DOI: 10.1007/bf02647559

[4] M. W. Barsoum, T. El-Raghy, Synthesis and characterization of a remarkable ceramic: Ti3SiC2, J. Am. Ceram. Soc. 79 (1996) 1953–(1956).

DOI: 10.1111/j.1151-2916.1996.tb08018.x

[5] Q. D. Xiao, Z. L. Lv., Current carrying friction and wear characteristics of Ti3AlC2 by novel method of infiltration sintering, Adv. Appl. Ceram. 111(2012) 202–207.

DOI: 10.1179/1743676111y.0000000066

[6] LIU Bo-bo, WANG Fen, ZHU Jian-feng, LI Ya-ling, CUI Xiang-yang, Synthesis of Ternary Machinable Al2O3/Ti3AlC2 Ceramic by High Energy Milling and Hot-Pressing, Journal of Aeronautical Materials, 30 (2010) 28-31.

[7] Song GM, Xu Q, Sloof WG, Li SB, Van der Zwaag S, Toughening of a ZrC Particle- Reinforced Ti3AlC2 Composite, Ceramic Engineering and Science Proceedings. 29 (2008), p.31.

DOI: 10.1002/9780470456361.ch4

[8] Li Meishuan, Li Chao, Li Jingjing, Zhou Yanchun, Oxidation Behavior of a Ti3AlC2/TiB2 Composite at 1000℃− 1400℃ in Air, Journal of the American Ceramic Society. 93 (2010) 554-560.

DOI: 10.1111/j.1551-2916.2009.03434.x

[9] Li Chao, Li Meishuan, Zhou Yanchun, Zhang Jie, He Lingfeng, In situ synthesis and properties of Ti3AlC2/TiB2 composites, Journal of the American Ceramic Society. 90 (2007) 3615-3620.

DOI: 10.1111/j.1551-2916.2007.01954.x

[10] Cui Bai, Sa Rafael, Jayaseelan Daniel D, Inam Fawad, Reece Michael J, Lee William Edward, Microstructural evolution during high-temperature oxidation of spark plasma sintered Ti2AlN ceramics, Acta Materialia. 60 (2012) 1079-1092.

DOI: 10.1016/j.actamat.2011.11.010

[11] Yanzhi Cai, HongfengYin, LiqingPan, PanjunChen, GaoleiSun, Microstructures and mechanical properties of Ti3SiC2/TiC–Al2O3 composites synthesized by reactive hot pressing, Mater. Sci. Eng. 571 (2013) 137-143.

DOI: 10.1016/j.msea.2013.02.017

[12] AI Taotao, Fabrication and mechanical properties of Al2O3/TiAl composites, J. Wuhan Univ. Technol. (2009) 732-735.

DOI: 10.1007/s11595-009-5732-y

[13] X.H. Wang, Y.C. Zhou, Microstructure and properties of Ti3AlC2 prepared by the solid–liquid reaction synthesis and simultaneous in situ hot pressing process, Acta Materialia. 50 (2002) 3141–3149.

DOI: 10.1016/s1359-6454(02)00117-9