论文标题
Lindemann脱离乳液
Lindemann unjamming of emulsions
论文作者
论文摘要
我们研究了几乎没有压缩的“ Athermal”乳液的散装和剪切弹性特性，并发现堵塞的固体的刚性在极大的临界渗透压下失败。微小的屈服应变和类似的小布朗颗粒位移接近该过渡的固体乳液表明，这种灾难性的失败对应于塑料 - 透明的不稳定性：固体变得太软和弱，无法抵抗组合和失败的液滴的热搅拌。我们提出了一个修改的Lindemann稳定性标准，以描述这种过渡，并为临界渗透压的缩放定律得出与实验观察的定量一致的临界渗透压。
We study the bulk and shear elastic properties of barely-compressed, "athermal" emulsions and find that the rigidity of the jammed solid fails at remarkably large critical osmotic pressures. The minuscule yield strain and similarly small Brownian particle displacement of solid emulsions close to this transition suggests that this catastrophic failure corresponds to a plastic-entropic instability: the solid becomes too soft and weak to resist the thermal agitation of the droplets that compose it and fails. We propose a modified Lindemann stability criterion to describe this transition and derive a scaling law for the critical osmotic pressure that agrees quantitatively with experimental observations.
