Influence of Hot Pressing Sintering Temperature and Time on Microstructure and Mechanical Properties of TiB2/Al2O3 Tool Materials

Mei Lin Gu; Hong Jing Xu; Jian Hua Zhang; Zhi Wei

doi:10.4028/www.scientific.net/AMR.500.629

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HomeAdvanced Materials ResearchAdvanced Materials Research Vol. 500Influence of Hot Pressing Sintering Temperature...

Influence of Hot Pressing Sintering Temperature and Time on Microstructure and Mechanical Properties of TiB₂/Al₂O₃ Tool Materials

Abstract:

In this paper, a TiB₂/Al₂O₃ composite was hot-pressed. The effect of hot pressing parameters on the TiB₂/Al₂O₃ composite microstructure and mechanical properties was investigated. The flexural strength and fracture toughness were measured by three point bending testing and direct indentation method, respectively. Experimental results show that the flexural strength decreases consistently with an increase in the sintering time, however, the fracture toughness increases consistently with an increase in the sintering time and sintering temperature. The maximum of the flexural strength is 1072 MPa at 1530 sintering temperature and 60 min sintering time. The microstructures were revealed by means of SEM. The results show that the TiB₂ grain size and density increases with the increasing temperature and time during hot pressing sintering, which benefits the fracture toughness and flexural strength.

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Periodical:

Advanced Materials Research (Volume 500)

Pages:

629-633

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.500.629

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Online since:

April 2012

Authors:

Mei Lin Gu, Hong Jing Xu, Jian Hua Zhang, Zhi Wei

Keywords:

Mechanical Property, Microstructure, Sintering Temperature, Sintering Time, TiB₂/Al₂O₃ Tool Materials

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References

[1] S. Baik and P.F. Becher: J. Am. Ceram. Soc. Vol. 70(8) ( 1987), p.527

Google Scholar

[2] C.B. Finch, P.F. Becher and M.K. Ferber: Adv. Ceram. Mater.Vol. 1 (1986), p.50

Google Scholar

[3] M. A. Einarsrud, E. Hagen, G. Pettersen and T. Grande: J. Am. Ceram. Soc.Vol. 80(12) ( 1997), p.3013

Google Scholar

[4] W.M. Wang, Z.Y. Fu, H. Wang and R.Z. Yuan: Journal of the European Ceramic Society Vol. 22 (2002), p.1045

Google Scholar

[5] M.L. G, J. H. Zhang and Z. Wei: Advanced Materials Research Vol. 287-290 (2011), p.(1933)

Google Scholar

[6] L.H. Li, H.K. Kim and E.S. Kang: Journal of the European Ceramic Society Vol. 22 (2002), p.973

Google Scholar

[7] M.L. Gu, C.Z. Huang, S.R. Xiao and H.L. Liu: Mater. Sci. Eng. A Vol. 486 (2008), p.167

Google Scholar

[8] M.L. Gu, C.Z. Huang, B. Zou and B.Q. Liu, Mater. Sci. Eng. A Vol. 433(2006), p.39

Google Scholar