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Atomic structures of Zr48Cu45Al7 ternary and Zr50Cu50 binary metallic glasses were investigated by performing reverse Monte Carlo (RMC) simulation upon synchrotron radiation based X-ray diffraction (XRD) and extended X-ray absorption fine structure (EXAFS) data. Bond shortening in Zr-Al and Cu-Al atomic pairs was detected in Zr48Cu45Al7, which is attributed to strong interactions between Al atoms and its neighbors. Subsequently, their atomic structure was further analyzed by Voronoi tessellation method, it was found that all kinds of Voronoi clusters have smaller volume in Zr48Cu45Al7 than their counterparts in Zr50Cu50. Accordingly it is suggested that atoms may be more densely packed in atomic structure of Zr48Cu45Al7 ternary than in corresponding Zr50Cu50 binary MG at cluster scale, which may be the structural origin of high glass-forming ability of CuZr-based bulk metallic glass prepared by Al addition.
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Keywords:
- bulk metallic glass(BMG) /
- atomic structure /
- glass-forming ability(GFA) /
- synchrotron radiation techniques
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[1] Inoue A 2000 Acta Mater. 48 279
[2] Li Z, Bai H Y, Zhao D Q, Pan M X, Wang W L, Wang W H 2003 Acta Phys. Sin. 52 652 (in Chinese) [李 正、白海洋、赵徳乾、潘明祥、王万录、汪卫华 2003 物理学报 52 652]
[3] Li Y, Wen P, Liu Z X, Jing X N, Wang W L, Bai H Y 2004 Acta Phys. Sin. 53 844 (in Chinese) [李 勇、闻 平、刘振兴、景秀年、王万录、2004 物理学报 53 844]
[4] Zhao Z F, Zhang Z, Li Z, Wen P, Zhao D Q, Pan M X, Wang W L, Wang W H 2004 Acta Phys. Sin. 53 850 (in Chinese) [赵作峰、张 志、李 正、闻 平、赵徳乾、潘明祥、王万录、汪卫华 2004 物理学报 53 850]
[5] Xu D H, Lohwongwatana B, Duan G, Johnson W L, Garland C 2004 Acta Mater. 52 2621
[6] Wang D, LI Y, Sun B B, Sui M L, Lu K, Ma E 2004 Appl. Phys. Lett. 84 4029
[7] Tang M B, Zhao D Q, Pan M X, Wang W H 2004 Chin. Phys. Lett. 21 901
[8] Peng H L, Li M Z, Chen G L, Wang W H, Wang C Z, Ho K M 2010 Appl. Phys. Lett. 96 021901
[9] Wang W H, Lewandowski J J, Greer A L 2005 J. Mater. Res. 20 2307
[10] Yu P, Bai H Y, Tang M B, Wang W L 2005 J. Non-Cryst. Solids 351 1328
[11] Yu P, Bai H Y, Tang M B, Wang W L, Wang W H 2005 Acta Phys. Sin. 54 3284 (in Chinese) [余 鹏、白海洋、汤美波、王万录、汪卫华 2005 物理学报 54 3284]
[12] Xu D H, Duan G, Johnson W L 2004 Phys. Rev. Lett. 92 245504
[13] Wang Q, Qiang J B, Wang Y M, Xia J H, Huang H G, Wang D H, Dong C 2007 J. Non-Cryst. Solids 353 3421
[14] Wang Q, Qiang J B, Xia J H, Wu J, Wang Y M, Dong C 2007 Intermetallics 15 711
[15] Fang H Z, Hui X, Chen G L, Liu Z K 2009 Appl. Phys. Lett. 94 091904
[16] Cheng Y Q, Ma E, Sheng H W 2009 Phys. Rev. Lett. 102 245501
[17] Wang X D, Jiang Q K, Cao Q P, Bednarcik J, Franz H, Jiang J Z 2008 J. Appl. Phys. 104 093915
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[19] Jeong I K,Thompson J,Proffen T, Turner A M P, Billinge S J L 2001 J. Appl. Crystallogr. 34 536
[20] Klementev K V 2001 J. Phys. D: Appl. Phys. 34 2241
[21] Wicks J D, Brjesson L, Bushnell-Wye G, Howells W S, McGreevy R L 1995 Phys. Rev. Lett. 74 726
[22] Parthapratim Biswas, Raymond Atta-Fynn, Drabold D A 2004 Phys. Rev. B 69 195207
[23] Medvedev N N 1986 J. Comput. Phys. 67 223
[24] Li Y, Guo Q, Kalb J A, Thompson C V 2008 Science 322 1816
[25] Mukherjee S, Schroers J, Zhou Z, Johnson W L, Rhim W K 2004 Acta Mater. 52 3689
[26] Greer A L , Ma E 2007 Mrs Bull. 32 611
[27] Dyre J C 2004 Nature Mater. 3 749
[28] Wang Z Y, Yang Y S, Tong W H, Li H Q, Hu Z Q 2007 Acta Phys. Sin. 56 1543 (in Chinese) [王珍玉、杨院生、童文辉、李会强、胡壮麒 2007 物理学报 56 1543]
[29] Wei H Q, Long Z L, Zhang Z C, Li X A, Peng J, Zhang P 2009 Acta Phys. Sin. 58 2558 (in Chinese) [危洪清、龙志林、张志纯、李乡安、彭 建、张 平 2009 物理学报 58 2558]
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