Microstructure Development in High-Temperature Mo-Si-B Alloys

Abstract

Mo-Si-B alloys are considered as potential high temperature structural materials due to their high melting points (above 2000°C) and excellent oxidation resistance attributed to their self-healing characteristics over an extended temperature range. In the current study, the effect of alloying additions to achieve lower weight density and microstructure stability has been examined. The critical factor to the alloying additions appears to be the stability of the high melting ternary-based T2 borosilicide phase.

This is a preview of subscription content, access via your institution.

References

  1. 1.

    Perepezko J.H., et al., in High Temperature Ordered Intermetallic Alloys VII, C.C. Koch, et al., Editors. 1997, MRS: Pittsburgh, PA. p. 1.

  2. 2.

    Perepezko, J.H., R. Sakidja, and S. Kim, in High Temperature Ordered Intermetallic Alloys IX, J.H. Schneibel, et al., Editors. 2001, MRS: Pittsburgh, PA. p. N4.5.1.

  3. 3.

    Sakidja, R., H. Sieber, and J.H. Perepezko, in Molybdenum and Molybdenum Alloys, A. Crowson, et al., Editors. 1998, TMS, Warrendale, PA. p. 99.

  4. 4.

    Schneibel J.H., et al., Mater. Sci. and Eng. A, 1999. 1-2: p. 78–83.

    Article  Google Scholar 

  5. 5.

    Berzcik, D.M., Oxidation Resistant Molybdenum Alloys; U.S. Patent No. 5, 693, 156. 1997.

  6. 6.

    Sakidja, R. and J.H. Peperezko, Metal. and Mater. Trans. A, 2005. 3.

  7. 7.

    Klein, B.M. and Z.M. Lu, Physica B, 2001. 296(1-3): p. 120–124.

    Google Scholar 

  8. 8.

    Park, J.S., R. Sakidja, and J.H. Perepezko, Scripta Mater., 2002. 46(11): p. 759–828.

    Article  Google Scholar 

  9. 9.

    Schlichting J., Ceramurgia International, 1978. 4(4): p. 162–166.

    CAS  Article  Google Scholar 

  10. 10.

    Ramos E.C.T., et al., Mater. Sci. and Eng., 2003. A363: p. 297–306.

    CAS  Article  Google Scholar 

Download references

Acknowledgments

The support of AFOSR (F49620-03-1-0033) and ONR (N00014-02-1-0004) are gratefully acknowledged.

Author information

Affiliations

Authors

Corresponding author

Correspondence to R. Sakidja.

Rights and permissions

Reprints and Permissions

About this article

Cite this article

Sakidja, R., Perepezko, J.H. Microstructure Development in High-Temperature Mo-Si-B Alloys. MRS Online Proceedings Library 851, 93–98 (2004). https://doi.org/10.1557/PROC-851-NN11.11

Download citation