密排结构各向异性晶粒的有效介电响应

A. Klíč, I. Rychetský
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引用次数: 0

摘要

以各种取向的紧密排列的单轴晶粒(晶体)为模型的多晶可以用谱表示来描述。它在形式上类似于各向同性双组分复合材料,但具有不同的结构特征含义。特别是,复合材料中使用的体积分数被晶体取向的空间平均值所取代。通过一个简单的例子说明,结构量取决于真实体积分数,也取决于晶粒的取向。
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Effective dielectric response of anisotropic grains of close-packed structure
Polycrystal modeled as close-packed uniaxial grains (crystallites) of various orientaions can be described using the spectral representation. It is formally similar to the isotropic 2-component composite, but with different meaning of structural characteristics. In particular, the volume fraction used in composites is replaced with the spacial mean value of crystallite orientations. It is illustrated on the simple example, that the structural quantities depends on the true volume fractions and also on the orientations of grains.
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