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Directionally-solidified eutectic composites are produced by:
A{'text': 'Sintering powders', 'label': 'D'}
B{'text': 'Sputter deposition', 'label': 'C'}
C{'text': 'Mechanical mixing of fibers and matrix', 'label': 'A'}
D{'text': 'Solidifying an eutectic alloy under a controlled temperature gradient so two phases align in fibrous or lamellar form in situ', 'label': 'B'}
Answer & Solution
Correct answer: D. {'text': 'Solidifying an eutectic alloy under a controlled temperature gradient so two phases align in fibrous or lamellar form in situ', 'label': 'B'}
DSE: a eutectic melt is cooled with a moving solidification front. The two eutectic phases naturally separate into aligned fibers or lamellae within the solidified ingot. Used for high-temperature turbine alloys.
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