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Pressure-temperature-time-transition diagram in a strong metallic supercooled liquid

金属過冷却液体の圧力-温度-時間変換ダイヤグラム

Wang, W. H.*; 内海 渉; Wang, X. L.*

Wang, W. H.*; Utsumi, Wataru; Wang, X. L.*

Zr$$_{46.75}$$Ti$$_{8.25}$$Cu$$_{7.5}$$Ni$$_{10}$$Be$$_{27.5}$$(vit4)バルク金属ガラスの過冷却領域における結晶化のカイネティクスと核発生メカニズムを放射光による高温高圧その場X線回折実験により調べた。圧力-時間-温度変換ダイヤグラム(PTTTプロット)にまとめられた結果を報告する。

The crystallization kinetics and nucleation mechanism of a bulk metallic glassforming alloy Zr$$_{46.75}$$Ti$$_{8.25}$$Cu$$_{7.5}$$Ni$$_{10}$$Be$$_{27.5}$$ (vit4) in the entire supercooled liquid region (SLR) is investigated using in situ high-pressure and high-temperature X-ray diffraction with synchrotron radiation, which allows us for the time to simultaneously determine the crystallization kinetics and phase evolution of a metallic liquid as a function of time under high pressure. The results are summarized in a pressure-time-temperature-transformation (PTTT) diagram with two time scales.

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パーセンタイル:41.66

分野:Physics, Multidisciplinary

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