“…However, the crystallization time obtained in this study is far shorter than the crystallization time of 200 ms reported by Mahendrasingam. 23 The crystallization rate is almost 10 times that reported previously, probably due to the difference in drawing conditions; i.e., a drawing temperature about 100 K higher 37 , a draw ratio 0.8 higher, and a strain rate 100 times as large. Accordingly, application of the measuring system used in this study enables direct analysis of the fiber structure development mechanism of a high-temperature, high-strain-rate, high-draw-ratio, and high-stress neck-drawing process.…”