Experimental Investigation and Simulation of the Normal Conducting Properties of a Heavily Cold Rolled Cu-20 Mass%Nb in situ Composite (original) (raw)

phys. stat. sol. (a) 147, 515 (1995)

Abstract

A fibre reinforced in situ metal matrix composite (MMC) consisting of Cu and 20massY0 Nb is manufactured by large strain cold rolling. The microstructure of the composite is investigated by means of optical and electron microscopy. The normal conducting properties of the MMC sheets in the presence of external magnetic fields are studied and compared to the electromagnetic behaviour of pure Cu and Nb sheets. The findings are discussed in terms of the microstructural changes which take place during rolling deformation. The resistivity of the MMC is simulated by assuming inelastic scattering of the condution electrons at the internal phase boundaries. Both, experiment and simulation, substantiate that the amount of internal boundaries and the filament spacing have considerable influence on the normal conducting properties of Cu-20 mass% Nb.

Loading...

Loading Preview

Sorry, preview is currently unavailable. You can download the paper by clicking the button above.

References (33)

  1. D. J. CHAKRABATI and D. E. LAUGHLIN, Bull. Alloy Phase Diagrams 2, 936 (1982).
  2. G. I. TEREKHOV and L. N. ALEKSANDROVA, Izv. Akad. Nauk SSR, Ser. Met. 4, 210 (1984).
  3. G. FROMMEYER, Verbundwerkstoffe, DGM-Verlag, 1981 (p. 5).
  4. K. R. KARASEK and J. BEVK, J. appl. Phys. 52, 1370 (1981).
  5. J. BEVK, J. P. HARBISON, and J. L. BELL, J. appl. Phys. 49, 6031 (1978).
  6. J. BEVK and K. R. KARASEK, in: New Developments and Applications in Composites, Ed. D.
  7. W. A. SPITZIG, A. R. PELTON, and F. C. LAABS, Acta metall. 35, 2472 (1987).
  8. W. A. SPITZIG, Acta metall. 39, 1085 (1991).
  9. C. TRYBUS and W. A. SPITZIG, Acta metall. 37, 1971 (1989).
  10. P. D. FUNKENBUSCH and T. H. COURTNEY, Acta metall. 33, 913 (1985).
  11. I I] W. A. SPITZIC and P. KROTZ, Scripta metall. 21, 1143 (1987).
  12. D. RAABE and U. HANGEN, Proc. 15th Riser Internat. Symp. Mat. Sci.; Topic: Numerical Prediction of Def. Proc. and the Behaviour of Real M a t , Eds. S. I. ANDERSEN, J. B. BILDE-SORENSEN, T. LORENTZEN, 0. B. PEDERSEN, and N. J. SORENSEN, Ris0 Nat. Lab., Roskilde (Denmark) 1994 (p. 487).
  13. D. RAABE, U. HANGEN, and G. GOTTSTEIN, Proc. Internat. Workshop High-Strength, High- Conduct. Composite Mat., Nat. High Magn. Field Lab., Tallahassee (Florida) 1994.
  14. F. HERINGHAUS, D. RAABE, L. KAUL, and G. GOTTSTEIN, Metall 6, 558 (1993).
  15. D. RAABE and G. GOTTSTEIN, J. Physique (IV), C7, Suppl. J. Physique (111) 3, 1727 (1993).
  16. D. RAABE, J. BALL, and G. GOTTSTEIN, Scripta metall. 27, 211 (1992).
  17. F. HERINGHAUS, U. HANGEN, D. RAABE, and G. GOTTSTEIN, Mater. Sci. Forum 157/162,709 (1994).
  18. F. HERLACH, IEEE Trans. Magnetics 24, 1049 (1988).
  19. J. D. EMBURY, M. A. HILL, W. A. SPITZIG, and Y . SAKAI, MRS Bull. 8, 57 (1993).
  20. H.-J. SCHNEIDER-MUNTAU, IEEE Trans. Magnetics 18, 32 (1982).
  21. F. HERINGHAUS, D. RAABE, and G. GOTTSTEIN, Metall 48, 287 (1994).
  22. D. RAABE and F. HERINGHAUS, phys. stat. sol. (a) 142, 473 (1994).
  23. F. HERINGHAUS, D. RAABE, and G. GOTTSTEIN, Acta metall., in press.
  24. J. G. RIDER and C. T. B. FOXON, Phil. Mag. 16, I133 (1967). D. RAABE, Computer Mater. Sci., in press.
  25. R. B. DINGLE, Proc. SOC. London Ser. 201, 1950 (p. 545).
  26. E. H. SONDHEIMER. Adv. Phvs. 1. 1 (1952).
  27. KUHLMANN-WILSDORF and W. C. HARRIGAN, AIME, Warrendale (PA) 1979 (p. 101). . , G. FROMMEYER and W. WASSERMANN, phys. stat. sol. (a) 27, 99 (1975).
  28. F. W. REYNOLDS and G. R. STILLWELL, Phys. Rev. 88, 418 (1952).
  29. J. AUER and H. ULLMAIER, Phys. Rev. B 7, 136 (1973).
  30. J. D. VERHOEVEN, W. A. SPITZIG, F. A. SCHMIDT, P. D. KROTZ, and E. D. GIBSON, J. Mater. Sci. 24, 1015 (1989).
  31. L. S. CHUMBLEY, H. L. DOWNING, W. A. SPITZIG, and J. D. VERHOEVEN, Mater. Sci. Engng. A 117, 59 (1989).
  32. H. COURTNEY, in: New Developments and Applications in Composites, Ed. D. KUHLMANN- WILSDORF and W. C. HARRIGAN, AIME, Warrendale (PA) 1978 (p. 1).
  33. CH. KITTEL, Introduction to Solid State Physics, 6th ed., John Wiley and Sons, Inc., New York 1986. (Received November 8, 1994)