Helical packings and phase transformations of soft spheres in cylinders
نویسندگان
چکیده
منابع مشابه
Helical packings and phase transformations of soft spheres in cylinders.
The phase behavior of helical packings of thermoresponsive microspheres inside glass capillaries is studied as a function of the volume fraction. Stable packings with long-range orientational order appear to evolve abruptly to disordered states as the particle volume fraction is reduced, consistent with recent hard-sphere simulations. We quantify this transition using correlations and susceptib...
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We study the optimal packing of hard spheres in an infinitely long cylinder, using simulated annealing, and compare our results with the analogous problem of packing disks on the unrolled surface of a cylinder. The densest structures are described and tabulated in detail up to D/d=2.873 (ratio of cylinder and sphere diameters). This extends previous computations into the range of structures whi...
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Close-packings of uniformly-sized spheres with centres on various lattices are described, with volume fractions equal or close to the maximum possible = p 18 (this value has long been `known' via Kepler's conjecture, and has been proved). Regular packings with two or three sized spheres can push this volume fraction to beyond 80%. The bulk of the paper studies irregular `packings' of a large sp...
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We present an experimental study of disordered packings of deformable spheres. Fluorescent hydrogel spheres immersed in water together with a tomography technique enabled the imaging of the three-dimensional arrangement. The mechanical behavior of single spheres subjected to compression is first examined. Then the properties of packings of a randomized collection of deformable spheres in a box ...
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ژورنال
عنوان ژورنال: Physical Review E
سال: 2010
ISSN: 1539-3755,1550-2376
DOI: 10.1103/physreve.81.040401