Theory of Amorphous Packings of Binary Mixtures of Hard Spheres

被引：94

作者：

Biazzo, Indaco ^{[1
]}

Caltagirone, Francesco ^{[1
]}

Parisi, Giorgio ^{[1
,2
]}

Zamponi, Francesco ^{[3
]}

机构：

[1] Univ Roma La Sapienza, Dipartimento Fis, I-00185 Rome, Italy

[2] Univ Roma La Sapienza, INFM CNR SMC, Ist Nazl Fis Nucl, I-00185 Rome, Italy

[3] Ecole Normale Super, Phys Theor Lab, CNRS, UMR 8549, F-75231 Paris, France

来源：

PHYSICAL REVIEW LETTERS | 2009年 / 102卷 / 19期

关键词：

STATISTICAL GEOMETRIC MODEL; RANDOM CLOSE PACKING; GLASS-TRANSITION; THERMODYNAMICS; DENSIFICATION; SIMULATION; PARTICLES; POROSITY;

D O I：

10.1103/PhysRevLett.102.195701

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We extend our theory of amorphous packings of hard spheres to binary mixtures and more generally to multicomponent systems. The theory is based on the assumption that amorphous packings produced by typical experimental or numerical protocols can be identified with the infinite pressure limit of long-lived metastable glassy states. We test this assumption against numerical and experimental data and show that the theory correctly reproduces the variation with mixture composition of structural observables, such as the total packing fraction and the partial coordination numbers.

引用

页数：4

共 39 条

[1] Configurational entropy of hard spheres [J].

Angelani, Luca ;

Foffi, Giuseppe .

JOURNAL OF PHYSICS-CONDENSED MATTER, 2007, 19 (25)

[2] SERIALLY DEPOSITED AMORPHOUS AGGREGATES OF HARD SPHERES [J].

BENNETT, CH .

JOURNAL OF APPLIED PHYSICS, 1972, 43 (06) :2727-&

[3] Compressing nearly hard sphere fluids increases glass fragility [J].

Berthier, L. ;

Witten, T. A. .

EPL, 2009, 86 (01)

[4]

BERTHIER L, ARXIV09031934

[5] Glass transition and effective potential in the hypernetted chain approximation [J].

Cardenas, M ;

Franz, S ;

Parisi, G .

JOURNAL OF PHYSICS A-MATHEMATICAL AND GENERAL, 1998, 31 (09) :L163-L169

[6] STRUCTURAL-CHANGES ACCOMPANYING DENSIFICATION OF RANDOM HARD-SPHERE PACKINGS [J].

CLARKE, AS ;

JONSSON, H .

PHYSICAL REVIEW E, 1993, 47 (06) :3975-3984

[7] Thermodynamics of binary mixture glasses [J].

Coluzzi, B ;

Mézard, M ;

Parisi, G ;

Verrocchio, P .

JOURNAL OF CHEMICAL PHYSICS, 1999, 111 (19) :9039-9052

[8] SIMPLEST STATISTICAL GEOMETRIC MODEL OF SIMPLEST VERSION OF MULTICOMPONENT RANDOM PACKING PROBLEM [J].

DODDS, JA .

NATURE, 1975, 256 (5514) :187-189

[9] THE POROSITY AND CONTACT POINTS IN MULTICOMPONENT RANDOM SPHERE PACKINGS CALCULATED BY A SIMPLE STATISTICAL GEOMETRIC MODEL [J].

DODDS, JA .

JOURNAL OF COLLOID AND INTERFACE SCIENCE, 1980, 77 (02) :317-327

[10] Neighbor list collision-driven molecular dynamics simulation for nonspherical hard particles. I. Algorithmic details [J].

Donev, A ;

Torquato, S ;

Stillinger, FH .

JOURNAL OF COMPUTATIONAL PHYSICS, 2005, 202 (02) :737-764

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