Pd-Si金属玻璃液-液相变过程的短程-中程序结构演变规律
Evolution of Short-to-Medium Range Orders During the Liquid-Liquid Phase Transition of a Pd-Si Metallic Glass
Pd-Si金属玻璃液-液相变过程的短程-中程序结构演变规律 |
| 董蔚霞, 姚忠正, 刘思楠, 陈国星, 王循理, 吴桢舵, 兰司 |
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Evolution of Short-to-Medium Range Orders During the Liquid-Liquid Phase Transition of a Pd-Si Metallic Glass |
| DONG Weixia, YAO Zhongzheng, LIU Sinan, CHEN Guoxing, WANG Xun-Li, WU Zhenduo, LAN Si |
| 图1 Pd82Si18金属玻璃在超过冷液相区等温退火过程中的同步辐射X射线散射结构因子(S(Q))及结构因子差分(ΔS(Q))图谱 |
| Fig.1 Profiles of structure factor(S(Q)) (a) and the differential structure factor (ΔS(Q)) (b) during the isothermal annealing for Pd82Si18 metallic glass (Annealing time for each line shown in Fig.1b corresponds to that in Fig.1a. Q—momentum transfer modulus; ΔS(Q) obtained by subtracting the respective S(Q) profile at the beginning of isothermal annealing (3 s); Q1 and Q2—the 1st and 2nd diffraction peaks;Q12, Q21, Q22, and Q23—crystallization peaks developed after 200 s) |
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