Skip to main content
SpringerLink
Log in

Crystallographic characterization of some intermetallic compounds in the Al−Cr system

  • Published:
Metallurgical Transactions A Aims and scope Submit manuscript

Abstract

Two Al−Cr compounds, known in the literature as the η and ε phases, were studied by precession camera single crystal X-ray diffraction and transmission electron microscopy (TEM). The results are different from those reported in the literature. The ε Al4Cr phase was found to be hexagonal P63/mmc with lattice parametersa=2.01 nm andc=2.48 nm, and we suggest that it is isomorphous to the Al4Mn μ phase. The η Al11Cr2 phase has a monoclinic (pseudo-orthorhombic) C-centered Bravais lattice witha 3≃1.76 nm,b 3≃3.05 nm,c 3≃1.76 nm, and β≃90 deg and a possible C2/c space group. Single crystals of the η phase are usually twinned.

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. F. Shunk:Constitution of Binary Alloys, 2nd Suppl., McGraw-Hill Book Co., New York, NY, 1969, pp. 21–22.

    Google Scholar 

  2. N. Saunders and V.G. Rivlin:Mater. Sci. Technol., 1986, vol. 2, pp. 521–42.

    Article  Google Scholar 

  3. H. Jones: inRapid Solidification Processing, Principles and Technology II, R. Mehrabian, B. Kear, and M. Cohen, eds., Claitor’s, Baton Rouge, LA, 1980, pp. 306–29.

    Google Scholar 

  4. L. Bendersky, R.I. Schaefer, F.S. Biancaniello, and D. Shechtman:J. Mater. Sci., 1986, vol. 21, pp. 1889–96.

    Article  Google Scholar 

  5. M.J. Cooper:Acta Crystallogr., 1960, vol. 13, pp. 257–63.

    Article  Google Scholar 

  6. T. Ohnishi, Y. Nakatani, and K. Okabayashi:Bull. Univ. Osaka Prefect, 1975, vol. 24, pp. 183–91.

    Google Scholar 

  7. K. Little:J. Inst. Met., 1953-54, vol. 82, pp. 463–72.

    Google Scholar 

  8. V.G. Rivlin and G.V. Raynor:Int. Met. Rev., 1980, vol. 4, pp. 139–57.

    Google Scholar 

  9. J.J. Ramon, D. Shechtman, and S.F. Dirnfeld: Technion, Haifa, Israel, unpublished research, 1990.

  10. L.A. Bendersky:J. Microsc., 1987, vol. 146, pp. 303–12.

    Article  Google Scholar 

  11. C.B. Schoemaker, D.A. Keszler, and D.P. Schoemaker:Acta Crystallogr., 1989, vol. B45, pp. 13–25.

    Article  Google Scholar 

Download references

Author information

Authors and Affiliations

  1. Institute of Materials Science and Engineering, National Institute of Standards and Technology, 20899, Gaithersburg, MD

    L. A. Bendersky (Metallurgist, Metallurgy Division) & R. S. Roth (Research Chemist, Ceramic Division)

  2. Department of Materials Engineering, Technion, Haifa, Israel

    J. T. Ramon (Graduate Student) & D. Shechtman (Professor and Head)

Authors
  1. L. A. Bendersky
    View author publications

    You can also search for this author in PubMed Google Scholar

  2. R. S. Roth
    View author publications

    You can also search for this author in PubMed Google Scholar

  3. J. T. Ramon
    View author publications

    You can also search for this author in PubMed Google Scholar

  4. D. Shechtman
    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

Bendersky, L.A., Roth, R.S., Ramon, J.T. et al. Crystallographic characterization of some intermetallic compounds in the Al−Cr system. Metall Trans A 22, 5–10 (1991). https://doi.org/10.1007/BF03350943

Download citation

  • Received:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/BF03350943

Keywords

Search

Navigation