Journal of Materials Science

, Volume 42, Issue 1, pp 30–39

Fabrication and characterization of vacuum plasma sprayed W/Cu-composites for extreme thermal conditions

  • G. Pintsuk
  • I. Smid
  • J.-E. Döring
  • W. Hohenauer
  • J. Linke


The joining of tungsten to copper and the ongoing search for commercially viable production techniques is one of the challenging issues in the field of composite materials. The reason why this material combination is of essential importance is its ability to withstand erosion and high temperatures on the tungsten side and to remove big quantities of heat on the copper side. Due to the mismatch of thermal expansion and Young’s moduli, the direct joining of these two materials results in high residual and thermal stresses at the interface, ultimately reducing component lifetime. One potential answer to this problem is functionally graded structures of W and Cu, which smoothen the transition of material properties. The present study focuses on vacuum plasma spraying (120 mbar, Ar) of W/Cu-gradients and composites with defined mixing ratios. The influence of the fabrication process and the W:Cu ratio on the microstructure has been investigated and results from thermo-mechanical and thermo-physical results analyses are presented. Finite element modeling has been used to demonstrate the positive effect of gradients on the elastic and elastic–plastic response within two different model-geometries. Partial gradients, ranging from pure tungsten to 75 vol.% tungsten, exhibit the best results and improve the expected life-time performance significantly by reducing the stresses at both interfaces, W/FGM and FGM/Cu, compared to a reference interface between W and Cu.


  1. 1.
    Brookes KJA (2000) PM Technology Trends, pp 16–18Google Scholar
  2. 2.
    Joensson M, Kieback B (2001) 15th Int Plansee Seminar, vol 1, RM 3, pp 1–15Google Scholar
  3. 3.
    Itoh Y, Takahashi M, Hirohisa H (1996) Fus Eng Des 31:279CrossRefGoogle Scholar
  4. 4.
    Hino T, Akiba M (2000) Fus Eng Des 49–50: 97CrossRefGoogle Scholar
  5. 5.
    Ge CC, Zhou ZJ (2005) Mater Sci For 475–479: 1371Google Scholar
  6. 6.
    Kieback B, Neubrand A, Riedel H (2003) Mater Sci Eng A 362: 81CrossRefGoogle Scholar
  7. 7.
    Birth U, Joensson M, Kieback B (1999) Mater Sci For 308–311: 766Google Scholar
  8. 8.
    Ge CC, Li JT, Zhou Z-J, Cao W-B, Shen W-P, Wang M-X, Zhang N-M, Liu X, Xu Z-Y (2000) J Nucl Mater 283–287: 1116CrossRefGoogle Scholar
  9. 9.
    Pintsuk G, Brünings SE, Döring J-E, Linke J, Smid I, Xue L (2003) Fus Eng Des 66–68: 259Google Scholar
  10. 10.
    Gomes UU, da Costa FA, da Silva AGP (2001) 15th Int Plansee Seminar, vol 1, RM 24, pp 177–189Google Scholar
  11. 11.
    Jedamzik R, Neubrand A, Rödel J (2000) J Mater Sci 35:477CrossRefGoogle Scholar
  12. 12.
    Döring JE, Vaßen R, Pintsuk G, Stöver D (2003) Fus Eng Des 66–68: 259Google Scholar
  13. 13.
    Wang S-H, Xue L (2005) Surf Eng Mater Sci III: 27Google Scholar
  14. 14.
    Pintsuk G, Hohenauer W, Linke J, Smid I, Wang S-H, Xue L (2005) 16th Int Plansee Seminar, vol 1, PL11, pp 131–143Google Scholar
  15. 15.
    Johnson J, German R (2005) 16th Int. Plansee Seminar, vol 1, PL10, pp 116–130Google Scholar
  16. 16.
    Sabirov I, Pippan R (2005) 16th Int. Plansee Seminar, vol 1, RM28, pp 291–299Google Scholar
  17. 17.
    Shen W-P, Zhou Z-J, Gu S-Y, Ge C-C, Zhang H, Liu H-L (2005) Mater Sci For 475–479: 1563Google Scholar
  18. 18.
    Xie J-X, Li S-B, Chen S (2005) Mater Sci For 475–479: 1511Google Scholar
  19. 19.
    Kang H-K (2004) Scr Mater 51:473CrossRefGoogle Scholar
  20. 20.
    Hamatani H, Shimoda N, Kitaguchi S (2003) Sci Tech Adv Mater 4:197CrossRefGoogle Scholar
  21. 21.
    Shabana YM, Noda N (2001) Comp Part B 32:111CrossRefGoogle Scholar
  22. 22.
    Gasik MM (1998) Comp Mater Sci 13:42CrossRefGoogle Scholar
  23. 23.
    Chapa J, Reimanis I (2002) J Nucl Mater 303:131CrossRefGoogle Scholar
  24. 24.
    Hollis KJ, Castro RG, Doerner RP, Maggiore CJ (2001) Fus Eng Des 55:437CrossRefGoogle Scholar
  25. 25.
    Itoh Y, Andoh H, Suyama S, Shindoh T (2001) J Jpn Inst Met 65(12):1108Google Scholar

Copyright information

© Springer Science+Business Media, LLC 2006

Authors and Affiliations

  • G. Pintsuk
    • 1
  • I. Smid
    • 2
  • J.-E. Döring
    • 1
  • W. Hohenauer
    • 3
  • J. Linke
    • 1
  1. 1.Forschungszentrum Jülich, Euratom-AssociationJulichGermany
  2. 2.The Pennsylvania State UniversityUniversity ParkUSA
  3. 3.ARC Seibersdorf Research GmbHSeibersdorfAustria

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