Primary dendrite - ichiji dendrite

Japanese: 1次デンドライト - いちじでんどらいと
Primary dendrite - ichiji dendrite

…The growth rate of the solid phase differs depending on the crystal direction, so protrusions appear where there is a solid phase. Since the protrusions dissipate heat into the molten liquid at a faster rate than the flat areas, they grow preferentially and form trunks (primary dendrites). Eventually, protrusions appear on the primary dendrites at right angles to their axes, forming branches (secondary dendrites). …

*Some of the terminology explanations that mention "primary dendrite" are listed below.

Source | Heibonsha World Encyclopedia 2nd Edition | Information

Japanese:

…固相の成長速度は結晶方向によって異なるので,固相のある個所に突起部が生じる。突起部は平面部に比べて溶融液中への熱の消散速度が大きいことから,ますます優先的に成長し,幹(1次デンドライト)を形成する。やがて1次デンドライトに,その軸の直角方向に突起部を生じ,枝(2次デンドライト)を形成する。…

※「1次デンドライト」について言及している用語解説の一部を掲載しています。

出典|株式会社平凡社世界大百科事典 第2版について | 情報

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