Fluctuation electron microscopy (FEM) measurements and simulations have identified nanoscale aluminum-like medium-range order in rapidly quenched amorphous Al92Sm8 which devitrifies by primary Al crystallization. Al92Sm8 amorphized by plastic deformation shows neither Al nanoscale order, nor primary crystallization. Annealing the rapidly quenched material below the primary crystallization temperature reduces the degree of nanoscale Al order measured by FEM. The FEM measurements suggest that 1020Å diameter regions with Al crystal-like order are associated with primary crystallization in amorphous Al92Sm8, which is consistent with the quenched-in cluster model of primary crystallization.

1.
A.
Inoue
,
K.
Ohtera
,
A. P.
Tsai
,
H.
Kimura
, and
T.
Masumoto
,
Jpn. J. Appl. Phys., Part 2
27
,
L1579
(
1988
);
Y.
He
,
S. J.
Poon
, and
G. J.
Shiflet
,
Science
241
,
1640
(
1988
).
[PubMed]
2.
J. C.
Foley
,
D. R.
Allen
, and
J. H.
Perepezko
,
Scr. Mater.
35
,
655
(
1996
).
3.
G.
Wilde
,
H.
Sieber
, and
J. H.
Perepezko
,
Scr. Mater.
40
,
779
(
1999
).
4.
G.
Wilde
,
H.
Rosner
,
N.
Boucharat
,
J.
Hamann
,
W. S.
Tong
, and
J. H.
Perepezko
,
Proceedings of the Materials Research Society
, Boston, MA,
806
,
33
38
(
2003
).
5.
S. K.
Das
,
J. H.
Perepezko
,
R. I.
Wu
, and
G.
Wilde
,
Mater. Sci. Eng., A
304
,
159
(
2001
).
6.
J. M.
Gibson
and
M. M. J.
Treacy
,
Phys. Rev. Lett.
78
,
1074
(
1997
).
7.
M. M. J.
Treacy
and
J. M.
Gibson
,
Acta Crystallogr., Sect. A: Found. Crystallogr.
52
,
212
(
1996
).
8.
P. M.
Voyles
,
J. M.
Gibson
, and
M. M. J.
Treacy
,
J. Electron Microsc.
49
,
259
(
2000
).
9.
J. M.
Gibson
,
M. M. J.
Treacy
, and
P. M.
Voyles
,
Ultramicroscopy
83
,
169
(
2000
).
10.
J. H.
Perepezko
and
R. J.
Hebert
,
JOM
54
,
34
(
2002
).
11.
J.
Li
,
X.
Gu
, and
T. C.
Hufnagel
,
Microsc. Microanal.
9
,
509
(
2003
).
12.
L.
Cervinka
,
J. Non-Cryst. Solids
156
,
94
(
1993
).
13.
R. K.
Dash
,
P. M.
Voyles
,
J. M.
Gibson
,
M. M. J.
Treacy
, and
P.
Keblinski
,
J. Phys.: Condens. Matter
15
,
S2425
(
2003
).
14.
S. V.
Khare
,
S. M.
Nakhmanson
,
P. M.
Voyles
,
P.
Keblinski
, and
J. R.
Abelson
,
Appl. Phys. Lett.
85
,
745
(
2004
).
15.
K.
Nakazato
,
Y.
Kawamura
,
A. P.
Tsai
, and
A.
Inoue
,
Appl. Phys. Lett.
63
,
2644
(
1993
).
16.
P. M.
Voyles
,
N.
Zotov
,
S. M.
Nakhmanson
,
D. A.
Drabold
,
J. M.
Gibson
,
M. M. J.
Treacy
, and
P. J.
Keblinski
,
J. Appl. Phys.
90
,
4437
(
2001
).
17.
P. M.
Voyles
and
J. R.
Abelson
,
Sol. Energy Mater. Sol. Cells
78
,
85
(
2003
).
18.
J. H.
Perepezko
and
J.
Hamann
(unpublished).
19.
J. C.
Foley
,
D. R.
Allen
, and
J. H.
Perepezko
,
Scr. Mater.
35
,
655
(
1996
).
20.
A. K.
Gangopadhyay
,
T. K.
Croat
, and
K. F.
Kelton
,
Acta Mater.
48
,
4035
(
2000
);
K. F.
Kelton
,
T. K.
Croat
,
A. K.
Gangopadhyay
,
L.-Q.
Xing
,
A. L.
Greer
,
M.
Weyland
,
X.
Li
, and
K.
Rajan
,
J. Non-Cryst. Solids
317
,
71
(
2003
).
21.
L. Q.
Xing
,
A.
Mukhopadhyay
,
W. E.
Buhro
, and
K. F.
Kelton
,
Philos. Mag. Lett.
84
,
293
(
2004
).
You do not currently have access to this content.