✍ Scribed by Shigeo Sato; Tsuyoshi Nishi; Eiichiro Matsubara; Muneyuki Imafuku; Nobuyuki Nishiyama; Yoshio Waseda; Akihisa Inoue
No coin nor oath required. For personal study only.
A fast X-ray diffraction apparatus has been developed for obtaining the local structures of bulk metallic glasses at the supercooled liquid state by applying the Debye±Scherrer camera geometry in combination with a curved position sensitive proportional counter. This arrangement makes it possible to eliminate the time loss due to angular motion of a counter and to do a very short time X-ray measurement when using the conventional in-house X-ray source. The usefulness of this new apparatus was con®rmed by obtaining the radial distribution functions of silicon powder and SiO 2 glass sample within one hundred seconds. Then, the short-range ordering structure of the supercooled liquid Pd 40 Ni 10 Cu 30 P 20 alloy was observed as a function of time at 583 K.
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