Dynamical x-ray diffraction from an icosahedral Al-Pd-Mn quasicrystal

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Description

Primary extinction effects in diffraction from single grains of Al-Pd- Mn, and presumably many other FCI alloys, may be significant and should be corrected for prior to use of diffraction data in structural determinations. Probes based on dynamical diffraction effects, such as x-ray standing wave fluorescence, multiple beam interference, and x-ray transmission topographs, may now be used to study the bulk and surface structure of some quasicrystals. The observation of dynamical diffraction from icosahedral Al-Pd-Mn is a striking confirmation of the fact that quasicrystals can present a degree of structural perfection comparable to that found in the best periodic intermetallic ... continued below

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127 p.

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Kycia, S. April 23, 1996.

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  • Ames Laboratory
    Publisher Info: Ames Lab., IA (United States)
    Place of Publication: Iowa

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Description

Primary extinction effects in diffraction from single grains of Al-Pd- Mn, and presumably many other FCI alloys, may be significant and should be corrected for prior to use of diffraction data in structural determinations. Probes based on dynamical diffraction effects, such as x-ray standing wave fluorescence, multiple beam interference, and x-ray transmission topographs, may now be used to study the bulk and surface structure of some quasicrystals. The observation of dynamical diffraction from icosahedral Al-Pd-Mn is a striking confirmation of the fact that quasicrystals can present a degree of structural perfection comparable to that found in the best periodic intermetallic crystals.

Physical Description

127 p.

Notes

OSTI as DE96012077

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  • Other Information: PBD: 23 Apr 1996

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  • Other: DE96012077
  • Report No.: IS-T--1677
  • Grant Number: W-7405-ENG-82;AC02-76CH00016
  • DOI: 10.2172/249084 | External Link
  • Office of Scientific & Technical Information Report Number: 249084
  • Archival Resource Key: ark:/67531/metadc663994

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  • April 23, 1996

Added to The UNT Digital Library

  • June 29, 2015, 9:42 p.m.

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  • Aug. 23, 2016, 3:30 p.m.

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Kycia, S. Dynamical x-ray diffraction from an icosahedral Al-Pd-Mn quasicrystal, report, April 23, 1996; Iowa. (digital.library.unt.edu/ark:/67531/metadc663994/: accessed September 26, 2017), University of North Texas Libraries, Digital Library, digital.library.unt.edu; crediting UNT Libraries Government Documents Department.