Synthesis of bulk metallic glass foam by powder extrusion with a fugitive second phase
Bulk metallic glass foams with 12 mm in diameter and 30 mm in length having a density of 4.62 g ∕ cm 3 (approximately 58.3% of theoretical) were fabricated by extruding a powder mixture comprised of 60 vol % Ni 59 Zr 20 Ti 16 Si 2 Sn 3 metallic glass blended with 40 vol % brass followed by dissoluti...
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| Veröffentlicht in: | Applied physics letters 2006-07, Vol.89 (2), p.021921-021921-3 |
|---|---|
| Hauptverfasser: | , |
| Format: | Artikel |
| Sprache: | eng |
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| Online-Zugang: | Volltext |
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| Zusammenfassung: | Bulk metallic glass foams with
12
mm
in diameter and
30
mm
in length having a density of
4.62
g
∕
cm
3
(approximately 58.3% of theoretical) were fabricated by extruding a powder mixture comprised of
60
vol
%
Ni
59
Zr
20
Ti
16
Si
2
Sn
3
metallic glass blended with
40
vol
%
brass followed by dissolution of the fugitive brass in an aqueous
H
N
O
3
solution. The final structure consists of continuously connected, high aspect ratio metallic glass struts surrounded by
∼
40
vol
%
of homogeneously distributed ellipsoid-shaped pores having nominal diameters between 10 and
50
μ
m
. |
|---|---|
| ISSN: | 0003-6951 1077-3118 |
| DOI: | 10.1063/1.2221882 |