晶体的粘弹性
Viscoelastic Properties of Crystals
摘要：
我们研究的问题是否流体和晶体的基础上区分其零频剪切模量或其极限零频剪切粘度。我们表明，虽然流体，与晶体相比，确实有一个零值的剪切模量，在矛盾的一个普遍的假设，晶体没有一个无限的或非常大的值，其极限零频率剪切粘度。事实上，虽然晶体的极限剪切粘度远大于形成晶体的液体的极限剪切粘度，但其粘度远小于假设液体是足够好的玻璃形成剂时可能形成的相应玻璃的粘度。
英文摘要：
We examine the question of whether fluids and crystals are differentiated on the basis of their zero frequency shear moduli or their limiting zero frequency shear viscosity. We show that while fluids, in contrast with crystals, do have a zero value for their shear modulus, in contradiction to a widespread presumption, a crystal does not have an infinite or exceedingly large value for its limiting zero frequency shear viscosity. In fact, while the limiting shear viscosity of a crystal is much larger than that of the liquid from which it is formed, its viscosity is much less than that of the corresponding glass that may form assuming the liquid is a good enough glass former.
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