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Which outcome results when anisotropic crystal growth occurs during directional solidification?

A)Macroscopic lattice defects intensify segregation
B)Dendritic formation enables uniform cooling
C)Compositional gradients maintain isotropic structure
D)Planar growth stabilizes grain boundaries

💡 Explanation

Macroscopic lattice defects intensify segregation because anisotropic crystal growth during directional solidification causes uneven solute distribution via interfacial instability. Therefore, defects concentrate impurities rather than uniform cooling; planar growth is suppressed rather than stabilized.

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