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