IS THE LOCAL STRUCTURE OF AMORPHOUS ALLOYS A CONSEQUENCE OF MEDIUM-RANGE ORDER?

1985 ◽  
pp. 413-419 ◽  
Author(s):  
P.H. GASKELL
Keyword(s):  
Local Structure ◽  
Amorphous Alloys ◽  
Range Order ◽  
Medium Range Order ◽  
Medium Range

Medium Range Order in Amorphous Alloys*

1988 ◽  
Vol 157 (Part_1) ◽  
pp. 23-27 ◽  
Author(s):  
B. Boucher ◽  
M. Elgadi ◽  
M. Sanquer ◽  
R. Tourbot ◽  
J. Bigot ◽  
...  
Keyword(s):  
Amorphous Alloys ◽  
Range Order ◽  
Medium Range Order ◽  
Medium Range

Medium-Range Order in High Al-content Amorphous Alloys Measured by Fluctuation Electron Microscopy

2003 ◽  
Vol 806 ◽  
Author(s):  
W. G. Stratton ◽  
J. Hamann ◽  
J. H. Perepezko ◽  
P. M. Voyles
Keyword(s):  
Electron Microscopy ◽  
Cold Rolling ◽  
Amorphous Alloys ◽  
Melt Spinning ◽  
Amorphous State ◽  
Structural Difference ◽  
Range Order ◽  
Medium Range Order ◽  
Medium Range ◽  
Fluctuation Electron Microscopy

ABSTRACTWe have used fluctuation electron microscopy (FEM) to measure nanoscale mediumrange order in amorphous Al92Sm8. Samples of this amorphous alloy formed by rapid quenching (melt-spinning) show a high density of pure Al nanocrystals (>1020 m-3) after low temperature (< 250 °C) devitrification. In samples amorphized by deformation (cold-rolling), primary Al-crystallization does not occur. This difference in devitrification behavior suggests an underlying structural difference in the amorphous state. FEM is a quantitative microscopy technique for determining nanoscale medium-range order in amorphous materials. Our measurements show that amorphous alloys formed by melt-spinning and cold-rolling have significant structural differences, and that annealing melt-spun alloy under conditions previously shown to modify the devitrification thermodynamics also changes the medium-range structure.

Medium-range order as an intrinsic property of Co-rich amorphous alloys

1997 ◽  
Vol 40 (1) ◽  
pp. 43-48 ◽  
Author(s):  
M. L Fdez-Gubieda ◽  
A García-Arribas ◽  
I Orue ◽  
F Plazaola ◽  
J. M Barandiarán
Keyword(s):  
Amorphous Alloys ◽  
Intrinsic Property ◽  
Range Order ◽  
Medium Range Order ◽  
Medium Range

Medium-Range Order in High Al-content Amorphous Alloys Measured by Fluctuation Electron Microscopy

2004 ◽  
Vol 10 (S02) ◽  
pp. 788-789 ◽  
Author(s):  
W. G. Stratton ◽  
P. M. Voyles ◽  
J. Hamann ◽  
J. H. Perepezko
Keyword(s):  
Electron Microscopy ◽  
Amorphous Alloys ◽  
Range Order ◽  
Medium Range Order ◽  
Al Content ◽  
Medium Range ◽  
Fluctuation Electron Microscopy ◽  
High Al Content

Extended abstract of a paper presented at Microscopy and Microanalysis 2004 in Savannah, Georgia, USA, August 1–5, 2004.

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