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arXiv 1406.6979cond-mat.soft
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磁性凝胶的可调动态响应:结构性质和磁场的影响

Tunable dynamic response of magnetic gels: impact of structural properties and magnetic fields

Mitsusuke Tarama, Peet Cremer, Dmitry Y. Borin, Stefan Odenbach, Hartmut Löwen, Andreas M. Menzel

摘要:

铁凝胶和磁性弹性体的机械性能可以通过磁场从外部可逆地调节。在这里,我们集中在如何调整他们的动态响应的问题。使用适当的极小模型的动态行为的三个因素的影响进行了演示:第一,在其合成过程中的一类材料的取向记忆印记;第二,在材料中的磁性颗粒的结构排列;和第三,外部磁场的强度。为了说明后一点,从一个真实的实验样本中提取结构数据并进行分析。了解内部结构特性和外部影响如何影响主要动力学特性有助于设计优化所需行为的材料。

英文摘要:

Ferrogels and magnetic elastomers feature mechanical properties that can be reversibly tuned from outside through magnetic fields. Here we concentrate on the question how their dynamic response can be adjusted. The influence of three factors on the dynamic behavior is demonstrated using appropriate minimal models: first, the orientational memory imprinted into one class of the materials during their synthesis; second, the structural arrangement of the magnetic particles in the materials; and third, the strength of an external magnetic field. To illustrate the latter point, structural data are extracted from a real experimental sample and analyzed. Understanding how internal structural properties and external influences impact the dominant dynamical properties helps to design materials that optimize the requested behavior.

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。

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