Disorder in Al-Li-Cu and Al-Mn-Si Icosahedral Alloys
10.1126/science.238.4827.660
Crossref journal-article
American Association for the Advancement of Science (AAAS)
Science (221)
Abstract

Faceted dendrites of icosahedral Al 6 Li 3 Cu have been studied by high-resolution x-ray scattering. The samples display long-range icosahedral symmetry both in their diffraction patterns and in their macroscopic morphology. Despite the appearance of well-defined facets, the samples have a high degree of atomic disorder. The Bragg peaks have symmetry-dependent shapes and widths that scale linearly with G ⊥ (phason momentum). The peak widths are surprisingly similar to those found in icosahedral Al-Mn-Si alloys in both their absolute magnitude and their dependence on G ⊥ . The origin of these features in models for the icosahedral phase is discussed.

Bibliography

Heiney, P. A., Bancel, P. A., Horn, P. M., Jordan, J. L., LaPlaca, S., Angilello, J., & Gayle, F. W. (1987). Disorder in Al-Li-Cu and Al-Mn-Si Icosahedral Alloys. Science, 238(4827), 660–663.

Authors 7 University of Pennsylvania
  1. P. A. Heiney (first) University of Pennsylvania
  2. P. A. Bancel (additional) University of Pennsylvania
  3. P. M. Horn (additional)
  4. J. L. Jordan (additional)
  5. S. LaPlaca (additional)
  6. J. Angilello (additional)
  7. F. W. Gayle (additional)
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Dates
Type When
Created 18 years, 10 months ago (Oct. 5, 2006, 4:28 p.m.)
Deposited 1 year, 7 months ago (Jan. 12, 2024, 10:35 a.m.)
Indexed 1 year, 5 months ago (March 26, 2024, 7 a.m.)
Issued 37 years, 10 months ago (Oct. 30, 1987)
Published 37 years, 10 months ago (Oct. 30, 1987)
Published Print 37 years, 10 months ago (Oct. 30, 1987)
Funders 0

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@article{Heiney_1987, title={Disorder in Al-Li-Cu and Al-Mn-Si Icosahedral Alloys}, volume={238}, ISSN={1095-9203}, url={http://dx.doi.org/10.1126/science.238.4827.660}, DOI={10.1126/science.238.4827.660}, number={4827}, journal={Science}, publisher={American Association for the Advancement of Science (AAAS)}, author={Heiney, P. A. and Bancel, P. A. and Horn, P. M. and Jordan, J. L. and LaPlaca, S. and Angilello, J. and Gayle, F. W.}, year={1987}, month=oct, pages={660–663} }