How can we make an alloy to fit a specific materials requirement? The oldest method of alloy fabrication, casting, has two inherent limitations: Phases with high melting points are difficult to melt; and the cooling of the alloys from the melt is slow, so that alloy segregation and phase separation have time to occur. The other traditional method, powder metallurgy, has helped with the second of these problems: Allowing the homogeneous melt to be cooled in tiny droplets makes it possible at least to limit segregation to the scale of the resulting powder particles.
REFERENCES
1.
B. P.
Fairand
, B. A.
Wilcox
, W. J.
Gallagher
, D. N.
Williams
, J. Appl. Phys.
43
, 3893
(1972
).2.
B. P.
Fairand
, A. H.
Clauer
, R. G.
Jung
, B. A.
Wilcox
, Appl. Phys. Lett.
25
, 431
(1974
).3.
4.
This content is only available via PDF.
© 1976 American Institute of Physics.
1976
American Institute of Physics
You do not currently have access to this content.
