Mechanical Properties and Ablation Behavior of Machinable ZrB2-SiC-BN Ceramics

Hai Tang Wu; Wei Gang Zhang

doi:10.4028/www.scientific.net/AMR.79-82.2011

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 79-82Mechanical Properties and Ablation Behavior of...

Mechanical Properties and Ablation Behavior of Machinable ZrB₂-SiC-BN Ceramics

Abstract:

ZrB2-SiC-BN ultrahigh-temperature ceramic (UHTC) was fabricated by hot-pressing at 1800°C under 23MPa pressure of argon. Compared to ZrB2-SiC, the flexural strength of ZrB2-SiC-BN composite material was enhanced by adding 30% BN, and the fracture toughness showed a slight decrease, while the hardness decreased sharply. The addition of 30% BN also noticeably improved the machinability of the composites. Furthermore, ablation resistance tests were carried out using an oxyacetylene torch under subsonic conditions. Results indicated that a coherent compact scale of zirconium silicate was formed, which acted as an effective barrier against the inward diffusion of oxygen.

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Advanced Materials Research (Volumes 79-82)

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2011-2014

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https://doi.org/10.4028/www.scientific.net/AMR.79-82.2011

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August 2009

Authors:

Hai Tang Wu, Wei Gang Zhang

Keywords:

Ablation Behavior, Boron Nitride, Machinability, Mechanical Property, Silicon Carbide (SiC), Zirconium Diboride

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References

[1] J.W. Zimmermann, G.E. Hilmas, W.G. Fahrenholtz, F. Monteverde and A. Bellosi: J. Eur. Ceram. Soc. Vol. 27(2007), p.2729.

Google Scholar

[2] S.R. Levine, E.J. Opila, M.C. Halbig, J.D. Kiser, M. Singh and J.A. Salem: J. Eur. Ceram. Soc. Vol. 22(2002), p.2757.

Google Scholar

[3] X.H. Zhang, P. Hu, J.C. Han and S.H. Meng: Compos. Sci. Technol. Vol. 68 (2008), p.1718.

Google Scholar

[4] F.Y. Yang, X.H. Zhang, J.C. Han and S.Y. Du: J. Alloys Compd. Vol. 472 (2009), p.395.

Google Scholar

[5] F. Monteverde, A. Bellosi and L. Scatteia: Mater. Sci. Eng. A Vol. 485 (2008), p.415.

Google Scholar

[6] M.W. Cho, D.W. Kim and W.S. Cho: J. Eur. Ceram. Soc. Vol. 27 (2007), p.1259.

Google Scholar

[7] Y.L. Li, J.X. Zhang, G.J. Qiao and Z.H. Jin: Mater. Sci. Eng. A Vol. 397 (2005), p.35.

Google Scholar

[8] G.J. Zhang, J.F. Yang, M. Ando and T. Ohji: J. Eur. Ceram. Soc. Vol. 22 (2002), p.2251.

Google Scholar