Domain structures of tetrahedrally close-packed phases with juxtaposed pentagonal antiprisms I. Structure description and HREM images of the C14 Laves and ?phases
- 1 June 1985
- journal article
- research article
- Published by Taylor & Francis in Philosophical Magazine A
- Vol. 51 (6), 829-837
- https://doi.org/10.1080/01418618508237590
Abstract
Zr4Al3 has a deformed 44 and MgCu2 a deformed 36 net of juxtaposed pentagonal antiprisms. A family of tetrahedrally close-packed structures can be derived based on these fundamental units. Various possibilities for intergrowth of the C14 Laves and μ phases are discussed. It is shown that each pentagonal antiprism in these phases can be imaged as a bright spot in a high resolution image, and the imaging conditions for interlaced C14 Laves and μ phases have been found.Keywords
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