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期刊论文

Critical states and phase diagram in the packing of uniform spheres

安希忠

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摘要/描述

This paper presents a study of the structural transition of the packing of uniform spheres with a wide range of packing fractions. Several critical states are identified including the onset of local jamming, onset of global jamming and maximally random jammed (MRJ) states. With the increase of packing fraction , the packing structure transforms from one-dimensional chains to two-dimensional triangles and finally three-dimensional tetrahedra, correspondingly undergoing phase changes from non-jamming to local jamming, global jamming, MRJ and finally crystal structure. There is a competition between FCC (face-centred cubic) and HCP (hexagonal closed packed) in the transition from disordered to ordered structure with the increase of . HCP can transform to FCC after reaching its maximum at =0.7

版权说明:以下全部内容由安希忠上传于   2009年05月27日 11时20分59秒,版权归本人所有。

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