NASA Logo

NTRS

NTRS - NASA Technical Reports Server

Back to Results
Studies of Nucleation and Growth, Specific Heat and Viscosity of Undercooled Melts of Quasicrystals and Polytetrahedral-Phase-Forming AlloysThe local atomic structures of undercooled liquid metals are presumed to be icosahedral; this order is incompatible with translational periodicity, constituting a barrier to the nucleation of the crystal phase. The extended atomic structure of the icosahedral quasicrystal (i-phase) is similar to that presumed in the undercooled liquid. Therefore, a comparison of the maximum undercooling in alloys that form the i-phase with those that form crystal phases provides a probe of the liquid structure.
Document ID
20020066652
Acquisition Source
Marshall Space Flight Center
Document Type
Conference Paper
Authors
Kelton, K. F.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Gangopadhyay, A. K.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Lee, G. W.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Hyers, R. W.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Rogers, J. R.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Robinson, M. B.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Rathz, T. J.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Krishnan, S.
(NASA Marshall Space Flight Center Huntsville, AL United States)
Curreri, Peter A.
Date Acquired
August 20, 2013
Publication Date
January 1, 2002
Subject Category
Metals And Metallic Materials
Meeting Information
Meeting: 2002 NASA Materials Science Conference
Location: Huntsville, AL
Country: United States
Start Date: June 25, 2002
End Date: June 26, 2002
Sponsors: NASA Headquarters
Distribution Limits
Public
Copyright
Work of the US Gov. Public Use Permitted.

Available Downloads

There are no available downloads for this record.
No Preview Available