Skip to main content
SpringerLink
Log in

The Effect of Dopant Additions on the Microstructure of Boron Fibers Before and After Reaction to MgB2

  • Published:
MRS Online Proceedings Library Aims and scope

Abstract

Boron fibers made by a commercial chemical vapor deposition (CVD) process have been used as precursors for the formation of magnesium diboride (MgB2) superconducting wires. Prior to a reaction with magnesium, the addition of dopants such as carbon and titanium to the boron fiber has been shown to enhance the superconducting properties of MgB2. These dopants also influence the kinetics of the reaction with magnesium. In this study, the effect of carbon dopant additions on the microstructure of boron fibers was investigated using powder x-ray diffraction, scanning electron microscopy (SEM) and transmission electron microscopy (TEM). Additionally, bundles of boron fibers were pressure infiltrated with molten magnesium and reacted at elevated temperatures. The microstructure and microchemistry of the fiber-metal interfaces were investigated by TEM and energy dispersive x-ray analysis (EDS).

This is a preview of subscription content, log in via an institution to check access.

Access this article

Log in via an institution

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Institutional subscriptions

Similar content being viewed by others

References

  1. R.J. Suplinskas and J.V. Marzik, “Boron and Silicon Carbide Filaments”, in Handbook of Reinforcements for Plastics, edited by J.V. Milewski and H.S. Katz (New York, Van Nostrand Reinhold Co., 1987) pp. 340–363.

    Google Scholar 

  2. J. Nagamatsu, N. Nakagawa, T. Muranaka, Y. Zenitani, and J. Akimitsu, Nature 410, 63 (2001).

    Article  CAS  Google Scholar 

  3. P.C. Canfield, D.K. Finnemore, S.L. Bud'ko, J.E. Ostenson, G. Lapertot, C.E. Cunningham, and C. Petrovic, Phys. Rev. Lett. 86, 2423, (2001).

    Article  CAS  Google Scholar 

  4. D.K. Finnemore, W.E. Straszhiem, S.L. Bud'ko, P.C. Canfield, N.E. Anderson Jr., and R.J. Suplinskas, Physica C, 385, 278 (2003).

    Article  CAS  Google Scholar 

  5. N.E. Anderson Jr., W.E. Straszhiem, S.L. Bud'ko, P.C. Canfield, D.K. Finnemore, and R.J. Suplinskas, Physica C, 390, 11 (2003).

    Article  CAS  Google Scholar 

  6. R.H.T. Wilke, S.L. Bud'ko, P.C. Canfield, D.K. Finnemore, R.J. Suplinskas, and S.T. Hannahs, Phys. Rev. Lett. 92, 217003 (2004).

    Article  CAS  Google Scholar 

  7. R.H.T. Wilke, S.L. Bud'ko, P.C. Canfield, M.J. Kramer, Y.Q. Wu, D.K. Finnemore, R.J. Suplinskas, J.V. Marzik, S.T. Hannahs, “Superconductivity in MgB2 doped with Ti and C”, Physica C, in press (2004).

    Google Scholar 

  8. John D. DeFouw and David C. Dunand, Appl. Phys. Lett. 83, 120 (2003).

    Article  CAS  Google Scholar 

  9. P.C. Canfield and G.W. Crabtree, Physics Today 56(3), 34 (2003).

    Article  CAS  Google Scholar 

  10. J.L. Hoard, R.E. Hughes, D.E. Sands, J. Am. Chem. Soc. 80, 4507 (1958).

    Article  CAS  Google Scholar 

  11. International Center for Diffraction Data: Newtown Square, PA (2004).

Download references

Author information

Authors and Affiliations

  1. Specialty Materials, Inc., Lowell, MA, U.S.A.

    James V. Marzik & Raymond J. Suplinskas

  2. Harvard University, Cambridge, MA, U.S.A.

    William J. Croft & Warren J. MoberlyChan

  3. Northwestern University, Evanston, IL, U.S.A.

    John D. DeFouw & David C. Dunand

Authors
  1. James V. Marzik
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. Raymond J. Suplinskas
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. William J. Croft
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. Warren J. MoberlyChan
    View author publications

    You can also search for this author in PubMed Google Scholar

  5. John D. DeFouw
    View author publications

    You can also search for this author in PubMed Google Scholar

  6. David C. Dunand
    View author publications

    You can also search for this author in PubMed Google Scholar

Rights and permissions

Reprints and permissions

About this article

Cite this article

Marzik, J.V., Suplinskas, R.J., Croft, W.J. et al. The Effect of Dopant Additions on the Microstructure of Boron Fibers Before and After Reaction to MgB2. MRS Online Proceedings Library 848, 326–331 (2004). https://doi.org/10.1557/PROC-848-FF6.2

Download citation

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1557/PROC-848-FF6.2

Search

Navigation