金属学报  1988, Vol. 24 Issue (2): 131-134

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Co-Er准晶态合金研究

李华;姜寿亭;丘梅影;郭贻诚;R.C.O’HANDLEY

山东大学物理系;讲师;山东大学物理系;山东大学物理系;山东大学物理系;美国麻省理工学院

QUASICRYSTAL Co-Er ALLOYS

LI Hua Department of Physics;Shandong University;Jinan;JIANG Shouting;QIU Meiying;GUO Yicheng;O'Handley R. C. Department of Physics; Shandong University; Jinan Massachussetts Institute of Technology; Cambridge

李华;姜寿亭;丘梅影;郭贻诚;R.C.O’HANDLEY. Co-Er准晶态合金研究[J]. 金属学报, 1988, 24(2): 131-134.
, , , , . QUASICRYSTAL Co-Er ALLOYS[J]. Acta Metall Sin, 1988, 24(2): 131-134.

摘要 参考文献 相关文章 Metrics 全文: PDF(310 KB)   摘要: <正> 我们在氦气氛保护下用急冷法制备了强磁性合金Co_(100-x)Er_x,x的范围从14至26。发现,当x≈20时,所制备的合金明显表现出不同于同样成分晶态或非晶态合金的性质.X射线的衍射图像表明,它属于正二十面体结构。差热分析和磁性实验的结果表明,这一成分合金的结构状态是介于非晶态和晶态之间的一种亚稳定状态,即所谓“准晶态”(quasicry-stal)。 正二十面体旋转对称含有五次对称轴。对于二维或三维周期性晶格结构而言,这种对称 关键词 ： 准晶体,  二十面体相,  五次对称,  散亚铁磁性,  亚稳态     Abstract：Rapidly quenched cobalt-rich alloys Co_(100-x) Er_x (14≤x≤26) weremade by melt spinning in He atmosphere. For x≈20, the Co-Er alloys show X-raydiffraction patterns in which the dominant phase can be indexed successfully withicosahedral lattice vectors. The quasicrystal Co-Er alloys are strongly magneticshowing many characteristics of sperimagnetism observed in amorphous films ofsimilar composition. The experimental results show typical magnetic properties ofthe icosahedral phase lying between those of the amorphous phase and the crystal-line phase of similar compositions. The quasicrystalline-to-crystalline transforma-tion was observed in the temperature range 385 to 630℃. The observations fuelthe assertion made by Steinhardt et al., that the icosahedral phase is a new typeof structural formula of materials. Key words： quasicrystal    icosahedral phase    fivefold symmetry    sperimagnetism    metastable state 收稿日期: 1988-02-18      基金资助:国家自然科学基金 服务 把本文推荐给朋友 加入引用管理器 E-mail Alert RSS 作者相关文章 李华 姜寿亭 丘梅影 郭贻诚 R.C.O’HANDLEY 44.8K 链接本文: https://www.ams.org.cn/CN/      或      https://www.ams.org.cn/CN/Y1988/V24/I2/131 1 Shechtman D S, Blech I, Gratias D, Cahn J W. Phys Rev Lett, 1984; 53: 1951 2 Steinhardt P H, Nelson D R, Ronchetti M. Phys Rev B, 1984; 28: 784 3 Steinhardt P J, Levine D., Phys Rev Lett, 1984; 53: 2477 4 Penrose R. Scientific American, 1977; (1) : Mathematical Games column S Lilienfeld D A, Nasfasi M, Johnson H H, Ast D G, Mater J W. Phys Rev Lett, 1985; 55: 1587 6 McHenry M E, Eberhart M E, O' Handley R C, Johnson K H. Phys Rev Lett, 1986; 56: 81 7 Jouve H, Roubillat J P, Meyer R. AIP Conf Proc, 1976; 29: 97 8 Buschow K H J, Fast J F, Van der Groot A S. Phys State Solid, 1968; 29: 825 9 Coey J M D. J Appl Phys, 1978; 49(3) : 164 [1] 张旺峰; 朱金华; 曹春晓 . 亚稳态材料的混合物强度法则新模型[J]. 金属学报, 2005, 41(1): 89-. [2] 傅云义; 胡赓祥; 孙祖庆 . Al67Mn8Ti24Nb1金属间化合物亚稳态粉末热压成形后的组织结构及性能[J]. 金属学报, 1999, 35(8): 856-860 . [3] 傅云义; 胡赓祥 . 复相Al3Ti基金属间化合物亚稳转变及重有序化[J]. 金属学报, 1999, 35(6): 600-603 . [4] 郝传勇;于尔靖;应慧筠;施成根. 8090Al—Li合金焊缝金属形核机制[J]. 金属学报, 1996, 32(6): 647-652. [5] 孟祥敏;佟百运;吴玉琨. Al_(65)Cu_(20)Co_(15)准晶体的力学性能[J]. 金属学报, 1994, 30(2): 61-64. [6] 沈保根;曹蕾;宫华扬;杨林原;孔麟书;郭慧群. 亚稳态化合物Ce_2Fe_(23)B_3的结构与磁性[J]. 金属学报, 1993, 29(6): 8-12. [7] 张俊善;曹智本. Ni-20Cr合金高温蠕变行为与位错亚结构的关系[J]. 金属学报, 1988, 24(2): 111-118. Viewed Full text Abstract Cited   Shared      Discussed