Abstract
Some of the more important aspects of lamellar and rod-like eutectic growth are presented. Recent experimental work has cast serious doubt on current theory. It seems probable that difficulties arise because of an incorrect choice of the additional condition necessary to specify lamellar growth. Doubt must be cast on the theory in its present form, both for lamellar spacing determination and for the lamellar to rod breakdown. Recent experimental work on the extent of the eutectic range has shown that the range depends critically on the temperature gradient in the liquid. A review is made of the treatments proposed to explain the experimental results.
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