日本金属学会誌

J. Japan Inst. Metals, Vol. 19, No. 10 (1955),
pp. 588-591

Studies on Line Structures in Single Crystals of Tin (2nd Report)

Hideo Takaki, Masashige Koyama and Hidekiyo Fujihira


Abstract:

In this study, microscopic observations were made with single crystals of tin whose [100] direction was parallel to the direction of growth. Further examination was carried out with respect to the specimens grown in the directions which inclined from [110] to[100] direction, fixing the[001]direction at the angles of 10,20 and 30 degrees respectively. A``partial dendrite structure,'' in which the secondary skeleton developed on the side of growth direction alone, was observed on the (001) plane of specimens whose [100] directions were parallel to the direction of the temperature gradient, probably owing to the low purity. Two kinds of cell structure (one was large and the other smaller) were also observed on both the free top surface and the sectional one of the specimens, having the above mentioned structure. This structure is assumed to be an intermediate structure, when the corrugation changes to the dendrite.


(Received 1955/3/19)

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