Abstract
AbstractDifferent geometry parameters for the cross‐like germanium crystallites (eutectic dendrites) of the Zn‐Ge eutectic alloys unidirectionally solidified have been related to the growth rate R and liquid temperature gradient G using linear regression analysis. It has been found that for eutectic dendrite spacing λ, balk length d and balk thickness b follow the relationship of the type w = CwR−rwG−gw; Cw is a constant. The spacing relationship of eutectic dendrites (rλ = 0.21; gλ = 0.48) shows a similarity with published experimental and theoretical results on primary dendrite arm spacing (rλ = 0.25; gλ = 0.5). It has been shown in terms of a profile ration λ/d that for geometrical similar morphologies the relationship λ2R = const. is valid.
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