相互作用对膏体记忆形成的影响
Effect of Interaction on the Formation of Memories in Paste
摘要：
一种具有可塑性的密集胶体悬浮体，称为糊状物，可以记住振动和流动的方向。这些记忆在膏体中可以可视化的干燥裂纹图案的形态。在这里，我们发现由带电胶体颗粒制成的糊状物不能记住流动方向。如果我们在这样的糊状物中加入氯化钠来屏蔽颗粒之间的库仑排斥作用，糊状物就会记住流动方向。也就是说，一滴盐水改变了浆料中的记忆效应，从而我们可以更精确地调节干燥裂纹图案的形态。
英文摘要：
A densely packed colloidal suspension with plasticity, called paste, is known to remember directions of vibration and flow. These memories in paste can be visualized by the morphology of desiccation crack patterns. Here, we find that paste made of charged colloidal particles cannot remember flow direction. If we add sodium chloride into such paste to screen the Coulombic repulsive interaction between particles, the paste comes to remember flow direction. That is, one drop of salt water changes memory effect in the paste and thereby we can tune the morphology of desiccation crack patterns more precisely.
机构、总结、中文摘要均由AI分析而来，可能存在错误，请以论文正文为准。
