…When the dislocation line and the Burgers vector are parallel, the dislocation is called a screw dislocation, and the atomic planes perpendicular to the dislocation line are arranged in a spiral shape around the dislocation line (Figure 2, a). In contrast, when the dislocation line and the Burgers vector are at right angles, the dislocation is called an edge dislocation, and an extra atomic plane appears to have intruded in an edge shape (Figure 2, b). In the case of a curved dislocation, the screw dislocation changes to an edge dislocation along a line, but the Burgers vector does not change. … *Some of the terminology that refers to "edge dislocation" is listed below. Source | Heibonsha World Encyclopedia 2nd Edition | Information |
…転位線とバーガース・ベクトルが平行のとき,その転位をらせん転位screw dislocationといい,転位線に垂直な原子面は転位線のまわりでらせん状に配列する(図2のa)。これに対して転位線とバーガース・ベクトルが直角の場合を刃状転位edge dislocationといい,1枚の余分な原子面が刃状に入り込んだようになっている(図のb)。曲がった転位のときは,1本の線に沿ってらせん転位から刃状転位と変わるが,バーガース・ベクトルは変わらない。… ※「edge dislocation」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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