Preparation Process Optimization and Characterization of an Ultra-Hard Al-Mg-B Material

Gang Feng; Lin Zhang; Guang Hui Min

doi:10.4028/www.scientific.net/AMR.79-82.279

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 79-82Preparation Process Optimization and...

Preparation Process Optimization and Characterization of an Ultra-Hard Al-Mg-B Material

Abstract:

The Al-Mg-B polycrystalline bodies were prepared using vacuum hot-pressing sinter method by pure Al, Mg and B powders. Process parameters and constitution variation were investigated to obtain compact Al-Mg-B sintered body with high mechanical properties. Al-13%Mg-72.7%B(weight ratio) sintered body prepared under 1600°C, 30MPa for 1 hour in vacuum was proved to be optimum, which bending strength was 156MPa and Vickers hardness was 2220. X-ray diffraction (XRD), Micron Probe Micro-analyzer (EPMA) were employed to analyse the ultimate phases. The results showed that the matrix phases were metal borides including AlB12, MgB6 and AlMgB14, while Al2O3 and MgAl2O4 phases existed which connected or filled in the matrix grains to promote the compactness degree, where oxygen introduced from impurities in raw materials. A portion of Mg in AlMgB14 combined with oxygen during heating to 1600°C which helped to form MgAl2O4 and AlB12 in the end.

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Periodical:

Advanced Materials Research (Volumes 79-82)

Pages:

279-282

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.79-82.279

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Online since:

August 2009

Authors:

Gang Feng, Lin Zhang, Guang Hui Min

Keywords:

Al-Mg-B, EPMA, Mechanical Property, Vacuum Hot-Pressing Sinter

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References

[1] R. Cherukuri, M. Womack and P. Molian, et al.: Surf. Coat. Tech., vol. 155(2002), p.112.

Google Scholar

[2] B. A. Cook, J. L. Harringa and T. L. Lewis, et al.: Scripta mater., vol. 42(2000), p.597.

Google Scholar

[3] J. M. Hill, D. C. Johnston and B. A. Cook, et al.: J. Magn. Magn. Mater., vol. 265(2003), p.23.

Google Scholar

[4] J. Nagamatsu, N. Nakagawa and T. Muranaka, et al.: Nature, vol. 410(2001), p.63.

Google Scholar

[5] T. Masui, K. Yoshida and S. Lee, et al.: Phys. Rev., vol. B65(2002), p.214513.

Google Scholar

[6] B. A. Cook, A. M. Russell and J. L. Harringa, et al.: J. Alloy Compd., vol. 366(2004), p.145.

Google Scholar

[7] D. J. Roberts, J. F. Zhao and Z.A. Munir, et al.: Int. J. Refract. Met. & H., vol. 27(2009), p.556.

Google Scholar

[8] T. G. Abzianidze, A. M. Eristavi and S. O. Shalamberidze, et al.: J. Solid State Chem., vol. 154(2000), p.191.

Google Scholar

[9] I. Higashi: J. Solid State Chem., vol. 154(2000), p.168.

Google Scholar

[10] A. M. Russell, B. A. Cook and J. L. Harringa, et al.: Scripta Mater., vol. 46(2002), p.629 Al b B d O e Mg c MgB6 Al2O3 AlB12 AlMgB14 MgAl2O4 a.

Google Scholar