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Reaction layer formation at the graphite/copper-chromium alloy interface

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Abstract

Sessile drop tests were used to obtain information about copper-chromium alloys that suitably wet graphite. Characterization of graphite/copper-chromium alloy interfaces subjected to elevated temperatures were conducted using scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS), Auger electron spectroscopy (AES), and X-ray diffraction analyses. These analyses indicate that during sessile drop tests conducted at 1130 °C for 1 hour, copper alloys containing greater than 0.98 at. pct chromium form continuous reaction layers of approximately 10-µm thickness. The reaction layers adhere to the graphite surface. The copper wets the reaction layer to form a contact angle of 60 deg or less. X-ray diffraction results indicate that the reaction layer is chromium carbide. The kinetics of reaction layer formation were modeled in terms of bulk diffusion mechanisms. Reaction layer thickness is controlled initially by the diffusion of Cr out of the Cu alloy and later by the diffusion of C through chromium carbide.

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References

  1. D.L. McDanels and J.O. Diaz: NASA TM-102328, NASA Lewis Research Center, Cleveland, OH, Sept. 1989.

  2. F. Weitzer, K. Remschnig, J.C. Schuster, and P. Rogl:J. Mater. Res., 1990, vol. 5, pp. 2152–59.

    CAS  Google Scholar 

  3. D. Mortimer and M. Nicholas:J. Mater. Sci., 1970, vol. 5, pp. 149–55.

    Article  CAS  Google Scholar 

  4. M. Nicholas and D. Mortimer:Proc. Int. Conf. on Carbon Fibers, Their Composites and Applications, The Plastics Institute, London, Feb. 2–4, 1971, pp. 1–3.

    Google Scholar 

  5. D. Mortimer and M. Nicholas:J. Mater. Sci., 1973, vol. 8, pp. 640–48.

    Article  CAS  Google Scholar 

  6. L. Murr:Interfacial Phenomenon in Metals and Alloys, Addison-Wesley Publishing Co., Reading MA, 1974, p. 102.

    Google Scholar 

  7. L. Ramqvist:Int. J. Powder Metall., 1965, vol. 1, pp. 2–21.

    CAS  Google Scholar 

  8. K. Nogi, Y. Osugi, and K. Ogino:Iron Steel Inst. Jpn., 1990, vol. 30, pp. 64–9.

    CAS  Google Scholar 

  9. itNat. Bur. Stand. (U.S.) Monogr., 1984, vol. 21.

  10. D.J. Chakrabarti and D.E. Laughlin:Bull. Alloy Phase Diagrams, 1984, vol. 5.

  11. J.F. Elliot and M. Gleiser:Thermochemistry for Steelmaking, Addison-Wesley Publishing Co., Reading, MA, 1960, pp. 135–36.

    Google Scholar 

  12. H.S. Carslaw and J.C. Jaeger:Conduction of Heat in Solids, Oxford University Press, New York, NY, 1959, pp. 119–20.

    Google Scholar 

  13. P.M. Shurygin and V.D. Shantarin:Zhur. Fiz. Khim., 1968, vol. 42, pp. 463–65.

    CAS  Google Scholar 

  14. P.G. Shewmon:Diffusion in Solids, McGraw Hill, New York, NY, 1969, p. 360.

    Google Scholar 

  15. R.J. Fries, J.E. Cummings, CG. Hoffman, and S.A. Daily: U.S. Atomic Energy Comm. Report LA-3795, 1967.

  16. E.K. Storms:The Refractory Carbides, Academic Press, New York, NY, 1967, pp. 47–60, pp. 102–21.

    Google Scholar 

  17. R. Hultgren, P.D. Desai, D.T. Hawkins, M. Gleiser, K.K. Kelley, and D.D. Wagman:Selected Values of Thermodynamic Properties of the Elements, ASM, Metals Park, OH, 1973, p. 155.

    Google Scholar 

  18. C.S. Barrett and T.B. Massalski:Structure of Metals, McGraw Hill, New York, NY, 1966, p. 627.

    Google Scholar 

  19. S.P. Timoshenko and J.N. Goodier:Theory of Elasticity, McGraw Hill, New York, NY, 1970, pp. 68–71.

    Google Scholar 

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This article is based on a presentation made in the symposium “High Performance Copper-Base Materials” as part of the 1991 TMS Annual Meeting, February 17–21, 1991, New Orleans, LA, under the auspices of the TMS Structural Materials Committee.

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Devincent, S.M., Michal, G.M. Reaction layer formation at the graphite/copper-chromium alloy interface. Metall Trans A 24, 53–60 (1993). https://doi.org/10.1007/BF02669602

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