Oxidation behavior of molybdenum silicides and their composites

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A key materials issue associated with the future of high-temperature structural silicides is the resistance of these materials to oxidation at low temperatures. Oxidation tests were conducted on Mo-based silicides over a wide temperature range to evaluate the effects of alloy composition and temperature on the protective scaling characteristics and testing regime for the materials. The study included Mo{sub 5}Si{sub 3} alloys that contained several concentrations of B. In addition, oxidation characteristics of MoSi{sub 2}-Si{sub 3}N{sub 4} composites that contained 20--80 vol.% Si{sub 3}N{sub 4} were evaluated at 500--1,400 C.

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23 p.

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Natesan, K. & Deevi, S. C. April 3, 2000.

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Description

A key materials issue associated with the future of high-temperature structural silicides is the resistance of these materials to oxidation at low temperatures. Oxidation tests were conducted on Mo-based silicides over a wide temperature range to evaluate the effects of alloy composition and temperature on the protective scaling characteristics and testing regime for the materials. The study included Mo{sub 5}Si{sub 3} alloys that contained several concentrations of B. In addition, oxidation characteristics of MoSi{sub 2}-Si{sub 3}N{sub 4} composites that contained 20--80 vol.% Si{sub 3}N{sub 4} were evaluated at 500--1,400 C.

Physical Description

23 p.

Notes

INIS; OSTI as DE00754466

Medium: P; Size: 23 pages

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  • International Symposium on Intermetallics for the Third Millennium, Cincinnati, OH (US), 11/01/1999--11/04/1999

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  • Report No.: ANL/ET/CP-97617
  • Grant Number: W-31109-ENG-38
  • Office of Scientific & Technical Information Report Number: 754466
  • Archival Resource Key: ark:/67531/metadc711450

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Office of Scientific & Technical Information Technical Reports

Reports, articles and other documents harvested from the Office of Scientific and Technical Information.

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  • April 3, 2000

Added to The UNT Digital Library

  • Sept. 12, 2015, 6:31 a.m.

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  • April 10, 2017, 3:57 p.m.

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Natesan, K. & Deevi, S. C. Oxidation behavior of molybdenum silicides and their composites, article, April 3, 2000; Illinois. (digital.library.unt.edu/ark:/67531/metadc711450/: accessed October 23, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.