Electron microscopic observations of coherent boundaries in γ- (Cu-Al)
- 15 August 1975
- journal article
- research article
- Published by AIP Publishing in Applied Physics Letters
- Vol. 27 (4) , 172-174
- https://doi.org/10.1063/1.88444
Abstract
Electron microscopic evidence is obtained for the presence of a possible two‐phase structure inside the γ‐phase field of the Cu‐Al system. Alloys with composition 34.54 at.% Al show a banded microstructure. When the bands are observed edge on adjacent plates differ in brightness. They are visible as fringe patterns when lying in planes inclined to the foil plane. Electron diffraction experiments show that the only crystallographic difference between two adjacent plates is the size of the unit cell. The probable composition of the coexisting phases is suggested to be Cu9Al4 and Cu1 7Al9.Keywords
This publication has 3 references indexed in Scilit:
- Refinement of the gamma-Cu9Al4 Structure.Acta Chemica Scandinavica, 1965
- Electron Microscope Transmission Images of Coherent Domain Boundaries II. ObservationsPhysica Status Solidi (b), 1964
- Electron Microscope Transmission Images of Coherent Domain Boundaries I. Dynamical TheoryPhysica Status Solidi (b), 1964