High-resolution electron microscopic study on long-period superstructures with 6H stacking sequence in Au3Cd alloys

K. H. Lee, D. Shindo, K. Hiraga, M. Hirabayashi

Research output: Contribution to journalArticle

1 Citation (Scopus)

Abstract

Atomic arrangements of long-period superstructures in Au-24.5 at.% Cd alloy with the basic h.c.p. structure have been investigated by high-resolution electron microscopy. The alloy shows one-dimensional or two-dimensional long-period superstructures in the close-packed plane with a 6H stacking sequence, depending on heat treatments. It is shown that the two-dimensional incommensurate superstructure with a period larger than 9a0 is composed of domains of the hexagonal commensurate structure (M = 9) separated by the antiphase-boundary zone in which 33/2 a0 × 2a0 × 3c0 orthorhombic structure is formed (a$-04/, c0 being the lattice parameters of the h.c.p. structure).

Original languageEnglish
Pages (from-to)55-62
Number of pages8
JournalJournal of Applied Crystallography
Volume23
Issue number1
DOIs
Publication statusPublished - 1990 Feb 1

ASJC Scopus subject areas

  • Biochemistry, Genetics and Molecular Biology(all)

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