Microstructures and Mechanical Properties of B4C-TiB2 Composite Prepared by Hot Pressure Sintering

Article Preview

Abstract:

B4C-TiB2 composite was prepared using hot pressure sintering. The microstructures and mechanical properties of the B4C-TiB2 composite were investigated. The B4C-TiB2 composite with 43 mass % TiB2 showed the optimized properties. The relative density, hardness, flexural strength and fracture toughness of that were 98.2 %, 25.9 GPa, 458 MPa and 8.7 MPa•m1/2, respectively. A number of toughening mechanisms, including fine grain, crack deflection and grain pull-out, were observed during microstructural analysis of the composite. The fracture mode of the B4C-TiB2 composite was greatly affected by the existence of the second phase of TiB2.

You might also be interested in these eBooks

Info:

Periodical:

Key Engineering Materials (Volumes 434-435)

Pages:

50-53

Citation:

Online since:

March 2010

Export:

Price:

Permissions CCC:

Permissions PLS:

Сopyright:

© 2010 Trans Tech Publications Ltd. All Rights Reserved

Share:

Citation:

[1] G. Fanchini, V. Gupta, A. B. Mann and M. Chhowalla: J. Am. Ceram. Soc. Vol. 91 (2008), p.2666.

Google Scholar

[2] S. Hayun, D. Rittel, N. Frage and M.P. Dariel: Mater. Sci. Eng. A Vol. 487 (2008), p.405.

Google Scholar

[3] T. K. Roy, C. Subramanian and A. K. Suri: Ceram. Int. Vol. 32 (2006), p.227.

Google Scholar

[4] D. C. Halverson, A. J. Pyzik, I. A. Aksay and W. E. Snowden: J. Am. Ceram. Soc. Vol. 72 (1989), p.775.

Google Scholar

[5] E. M. Heian, S. K. Khalsa, J. W. Lee and Z. A. Munir: J. Am. Ceram. Soc. Vol. 87 (2004), p.779.

Google Scholar

[6] A. Goldstein, Y. Yeshurun and A. Goldenberg: J. Eur. Ceram. Soc. Vol. 27 (2007), p.695.

Google Scholar

[7] S. Yamada, K. Hirao, Y. Yamauchi and S. Kanzaki: Ceram. Int. Vol. 29 (2003), p.299.

Google Scholar

[8] S. Yamada, K. Hirao, Y. Yamauchi and S. Kanzaki, J. Euro. Ceram. Soc. Vol. 23 (2003), p.561.

Google Scholar

[9] J. Deng and J. Sun: Ceram. Int. Vol. 35 (2009), p.771.

Google Scholar

[10] S. Zhu, W. G. Fahrenholtz, G. E. Hilmas, S. C. Zhang, E. J. Yadlowsky and M. D. Keitz: Composites: Part A Vol. 39 (2008) p.449.

Google Scholar

[11] P. Lu, X.Y. Yue, L. Yu, and H. Q. Ru: J. Mater. Sci. Vol. 44(33)(2009), p.3483.

Google Scholar