Origins of thixotropy.
Origins of thixotropy.
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触变性的起源。
DOI：
10.1103/physrevlett.54.1513
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发表时间：
1985
影响因子：
8.6
通讯作者：
Woodcock
中科院分区：
文献类型：
--
作者：
Woodcock
软球标度律和非平衡粒子动力学模拟表明，复杂胶体分散体中常见的结构有序性(触变性)随时间变化的剪切稀化行为源于正常剪切流体和偏序近晶相之间的一阶热力学相变。这种转变源于所施加的应变率对平衡流体凝固点的扰动。
Soft-sphere scaling laws and nonequilibrium particle-dynamics simulations show that timedependent shear-thinning behavior involving structural ordering (thixotropy), typically seen in complex colloidal dispersions, derives from a first-order thermodynamic phase transition between a normal shearing fluid and a partially ordered smectic phase. The transition stems from a perturbation of the equilibrium fluid freezing point by the applied strain rate.