Imprinting memory into paste to control crack formation in drying process
Imprinting memory into paste to control crack formation in drying process
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DOI：
10.1088/1742-5468/2006/07/p07016
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发表时间：
2006-07-01
影响因子：
2.4
通讯作者：
Matsuo, Y.
中科院分区：
文献类型：
--
作者：
Nakahara, A.;Matsuo, Y.
在膏体的干燥过程中，我们通过实验找到了一种将未来裂纹扩展的方向印在膏体上的方法。在该方法中，我们在浆料干燥之前对其进行振动。当糊干燥时，出现各向异性裂纹图案，例如层状裂纹图案，这些裂纹的方向全部垂直于初始振动的方向。通过对膏体进行流变测量并制作裂纹图案的形态相图，我们发现膏体的可塑性在记忆效应中起着重要作用。
In the drying process of paste, we have experimentally found a method to imprint into paste the direction of future crack propagation. In the method, we vibrate the paste before it is dried. As the paste dries, an anisotropic crack pattern, such as a lamellar crack pattern, appears with the directions of these cracks all perpendicular to the direction of the initial vibration. By performing rheological measurement of paste and by making a morphological phase diagram of crack patterns, we find that the plasticity of paste plays an important role in the memory effect.