| Al70Co15Tb5Ni10合金中准晶T相和相关相的形成 |
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| 引用本文： | 禹日成 许大鹏. Al70Co15Tb5Ni10合金中准晶T相和相关相的形成[J]. 高压物理学报, 1994, 8(2): 141-145 |
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| 作者姓名： | 禹日成 许大鹏 |
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| 作者单位： | 吉林大学物理系固体物理教研室，中国科学院国际材料物理中心，中国高等科学技术中心（世界实验室） |
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| 摘 要： | 对Al70Co15Tb5Ni10合金进行了静高压（4.40 GPa）熔态（1 450 ℃）淬火（冷却速率为102 ℃/s）研究。首次在该系统中观察到准晶T相和一个新的十次准晶相关相形成。使用透射电镜对准晶相和准晶相关相进行了结构分析，得到了准晶相关相的晶胞参数。使用已有的理论模型对该相关相的形成进行了讨论。
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| 关 键 词： | 准晶 准晶相关相 静高压 熔态淬火 AlCoTbNi |
| 收稿时间： | 1992-12-30; |
THE FORMATION OF DECAGONAL QUASICRYSTAL AND A NEWCRYSTALLINE APPROXIMANT IN Al_70Co_15Tb_5Ni_10 ALLOY |
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| Yu Richeng,Xu Dapeng,Su Wenhui,Pang Yanxin. THE FORMATION OF DECAGONAL QUASICRYSTAL AND A NEWCRYSTALLINE APPROXIMANT IN Al_70Co_15Tb_5Ni_10 ALLOY[J]. Chinese Journal of High Pressure Physics, 1994, 8(2): 141-145 |
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| Authors: | Yu Richeng Xu Dapeng Su Wenhui Pang Yanxin |
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| Affiliation: | 1. Department of Physics, Jilin University, Changchun 130023, China;2. International Centre for Materials Physics, Academia Sinica, Shenyang 110015, China;3. Centre for Condensed and Radiation Physics, CCAST (World Laboratory), Beijing 100080 |
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| Abstract: | In this paper, samples of Al70Co15Tb5Ni10 in fusion state (1 450 ℃) were quenched with a cooling rate of 102 ℃/s under high static pressure (4.40 GPa). Decagonal quasicrystal and a new crystalline approximant were found in the samples for the first time. The structures of the decagonal quasicrystal and the new crystalline approximant were analyzed by TEM. Lattice parametere of the new crystalline approximant obtained from TEM observation are similar to those of the theoretical calculation. |
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| Keywords: | quasicrystal crystalline approximant high-static pressure quench in fusionstate AlCoTbNi. |
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