A Study on the Formation and Stability of Quasicrystal Al4Mn under High Static Pressure
-
摘要: 本文利用静高压熔态淬火方法,首次对Al4Mn合金形成准晶的压力条件及其热稳定性进行了研究,发现在0.95 GPa到4.45 GPa的范围内,以102 K/s冷却速率淬火的Al4Mn合金,在不同压力下形成不同结构的准晶,利用非晶动力学理论及其结果进行了初步解释。Abstract: The condition of the formation of quasicrystal Al4Mn and Al6Cr under high static pressure has been investigated for the first time. I-phase and T-phase have been observed in electron diffraction experiment. The structures of Al4Mn quenched at about 100 K/s are different under various pressures form 0.95 to 4.45 GPa. The phase transition from I-phase and T-phase to crystalphase has also been investigated. The results were discussed by noncrystalline dynamic theory.
-
张强. 吉林大学硕士毕业论文, 1986. 张强, 苏文辉. 高压物理学报, 1988, 2(1): 58. Su Wenhui, Wu Daiming, Ma Xianfeng, et al. Physica B, 1986, 139-140: 661. Shin Takeuchi, et al. Journal of the Physical Society of Japan, 1987, 56(3): 982. Bancel P A. Phys Rev Lett, 1985, 54(22): 2422. Bendersky L A. Scripts Metal, 1987, 21: 531. Shechtman D, et al. Phys Rev Lett, 1984, 53: 1951. 郭贻诚, 等. 非晶态物理学. 北京: 科学出版社, 1984.
点击查看大图
计量
- 文章访问数: 7251
- HTML全文浏览量: 406
- PDF下载量: 680