Published October 7, 1985 | Version v1
Journal article

Formation of icosahedral Al(Mn) by directed energy processes

  • 1. Sandia National Laboratories, Albuquerque, New Mexico 87185

Description

Surface layers of icosahedral Al84Mn16 have been formed for the first time by ion-beam mixing of deposited Al/Mn layers on Al substrates at approx.80 0C and by either of two rapid electron-beam heat treatments of such layers. The well-defined temperature histories allow us to place limits on the melting point (6600C < T/sub m / < 9300C) and the time needed for nucleation of the icosahedral phase from the melt at 6600C (tau/sub n / < 900 ns). The microstructures observed place restrictions on a proposed microtwinning structural model

Additional details

Publishing Information

Journal Title
Phys. Rev. Lett.
Journal Volume
55
Journal Issue
15
Series
Phys. Rev. Lett.
Journal Page Range
1591-1595
ISSN
0031-9007
CODEN
PRLTA