High resolution X-ray and neutron diffraction of super- and disorder in decagonal Al-Co-Ni

E. Weidner, K. Hradil, F. Frey, M. De Boissieu, A. Létoublon, W. Morgenroth, H. G. Krane, M. Capitan, A. P. Tsai

Research output: Contribution to journalArticlepeer-review

3 Citations (Scopus)

Abstract

Synchrotron measurements at DESY and ESRF of decagonal quasicrystals with the nominal composition Al70Co15Ni15 and Al72Co16Ni12, show that Bragg reflections with high |Hi*| values are surrounded by up to four weak subsidiary peaks. The positions of these additional peaks depend solely on the position of the Bragg reflection in the reciprocal perpendicular subspace and can be explained by a linear phason strain model. This model sheds new light on the current superorder models and is a further step towards an understanding of the real structures of decagonal quasicrystals.

Original languageEnglish
Pages (from-to)308-314
Number of pages7
JournalMaterials Science and Engineering A
Volume294-296
DOIs
Publication statusPublished - 2000 Dec 15

ASJC Scopus subject areas

  • Materials Science(all)
  • Condensed Matter Physics
  • Mechanics of Materials
  • Mechanical Engineering

Fingerprint Dive into the research topics of 'High resolution X-ray and neutron diffraction of super- and disorder in decagonal Al-Co-Ni'. Together they form a unique fingerprint.

Cite this