Solidification Processing

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Solidification Processing

• Lecture 18 Cell structure

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Four assumption
(1). Isotherms are flat, perpendicular to the
growth direction (2). The cell spacing adjusts
itself so that the constitutional supercooling in
the intercellular regions is very small. (3).
Cell size is sufficiently coarse that the effect
of radius of curvature on melting point can be
neglected and (4) solid-state diffusion is
negligible.
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Cell spacing
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