Random packings of spheres and fluidity limits of monodisperse and bidisperse suspensions

Journal Article · Mon Mar 02 04:00:00 EST 1992 · Physical Review Letters; (United States)

DOI:https://doi.org/10.1103/PhysRevLett.68.1422· OSTI ID:7234388

Shapiro, A P; Probstein, R F ^[1]

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1. Department of Mechanical Engineering, Massachusetts Institute of Technology, Cambridge, Massachusetts 02139 (United States)

The transition from a fluid to solid state is investigated by studying the viscosity of concentrated noncolloidal monodisperse and bidisperse suspensions of hard spheres. The notion of a range of fluidity limits, analogous to glass transition densities, is introduced. Lower bounds to this range are determined and compared with dry random close packings of the spheres. The ratio of the random-close-packing fraction to the lower bound fluidity limit of the bidisperse suspensions is found to be the same as for monodisperse spheres, a constant of 1.19, suggesting a random structure at this limit.

• DOE Contract Number: FG02-89ER14085
• OSTI ID: 7234388
• Journal Information: Physical Review Letters; (United States), Journal Name: Physical Review Letters; (United States) Vol. 68:9; ISSN PRLTA; ISSN 0031-9007
• Country of Publication: United States
• Language: English

Related Subjects

665000* -- Physics of Condensed Matter-- (1992-)
75 CONDENSED MATTER PHYSICS
SUPERCONDUCTIVITY AND SUPERFLUIDITY
BROWNIAN MOVEMENT
DATA
DISPERSIONS
EXPERIMENTAL DATA
FLUIDS
GLASS
HARD-SPHERE MODEL
INFORMATION
NUMERICAL DATA
PHASE TRANSFORMATIONS
RANDOMNESS
SHEAR
SIZE
SOLIDIFICATION
SUSPENSIONS
VISCOSITY