Fivefold and threefold-type dislocations in an Al[sbnd]Cu[sbnd]Fe icosahedral quasicrystal identified by defocus convergent-beam electron diffraction
- 1 June 1994
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine Letters
- Vol. 69 (6) , 309-315
- https://doi.org/10.1080/09500839408242438
Abstract
Dislocations with Burgers vectors b5 = 〈-211111〉 and b3 = 〈10 − 10 − 10〉 in an Al[sbnd]Cu[sbnd]Fe icosahedral quasicrystal (IQC) have been identified for the first time by the defocus convergent-beam electron diffraction method. Unlike the dislocations already found in IQCs, the Burgers vector components of these two types of dislocation in physical space are parallel to the fivefold and threefold axes respectively of the IQC. In addition, the magnitudes of the Burgers vector components in physical space are about 0·2 and 0·5 nm respectively, which are only about one eighteenth and one quarter of those in the complementary space.Keywords
This publication has 10 references indexed in Scilit:
- Convergent-beam electron diffraction study of the Burgers vectors of dislocations in icosahedral quasicrystalsPhilosophical Magazine A, 1994
- A new six-dimensional Burgers vector of dislocations in icosahedral quasicrystals determined by convergent-beam electron diffractionPhilosophical Magazine Letters, 1993
- Burgers vector of dislocations in an icosahedral quasicrystal determined by means of convergent-beam electron diffractionPhysical Review B, 1993
- Edge dislocations in icosahedral Al—Pd—Mn alloysPhilosophical Magazine A, 1993
- Burgers vector determination of dislocations in an Al70Co15Ni15decagonal quasicrystalPhilosophical Magazine Letters, 1992
- On the determination of the Burgers vector of quasicrystal dislocations by transmission electron microscopyPhilosophical Magazine A, 1991
- Transmission electron microscope observations of dislocations and stacking faults in a decagonal Al-Cu-Co alloyPhilosophical Magazine Letters, 1989
- Phonons, phasons, and dislocations in quasicrystalsPhysical Review B, 1986
- Hydrodynamics of icosahedral quasicrystalsPhysical Review B, 1985
- Elasticity and Dislocations in Pentagonal and Icosahedral QuasicrystalsPhysical Review Letters, 1985