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A generalized description of the elastic properties of nanowires

机译:纳米线弹性特性的广义描述

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摘要

We report a model of nanowire (NW) mechanics that describes force vs displacement curves over the entire elastic range for diverse wire systems. Due to the clamped-wire measurement configuration, the force response in the linear elastic regime can be linear or nonlinear, depending on the system and the wire displacement. For Au NWs the response is essentially linear since yielding occurs prior to the onset of the inherent nonlinearity, while for Si NWs the force response is highly nonlinear, followed by brittle fracture. Since the method describes the entire range of elastic deformation, it unequivocally identifies the yield points in both of these materials.
机译:我们报告了一种纳米线(NW)力学模型,该模型描述了各种线材系统在整个弹性范围内的力与位移曲线。由于线夹的测量配置,线性弹性状态下的力响应可以是线性的,也可以是非线性的,具体取决于系统和线的位移。对于金纳米线,响应基本上是线性的,因为屈服发生在固有非线性的发生之前,而对于硅纳米线,力响应是高度非线性的,随后是脆性断裂。由于该方法描述了整个弹性变形范围,因此可以明确地确定这两种材料的屈服点。

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