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Experimental study of the breakage of a two-dimensional crystal

机译:二维晶体破裂的实验研究

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摘要

In this short review, we summarize a study of the mechanical properties of two-dimensional single crystals obtained at an air-water interface. A micromechanical experiment was performed to keep a crystalline rod under a bending stress in the plane of the water. The single crystal breaks under the effect of the stress after a clearly defined delay time. For large deformations, a second mode of breaking appears and coexists with the previous mode; a fraction of the solids break instantaneously while others break after a delay time. The time-lag breaking is attributed to the spontaneous nucleation of cracks in the solid under stress. [References: 7]
机译:在这篇简短的评论中,我们总结了在空气-水界面处获得的二维单晶力学性能的研究。进行了微机械实验,以使结晶棒保持在水平面中的弯曲应力下。在明确定义的延迟时间后,单晶在应力的作用下破裂。对于较大的变形,出现第二种断裂模式并与先前的模式共存。一小部分固体会瞬间破裂,而其他一些则会在延迟时间后破裂。时滞的破裂归因于固体在应力下的裂纹自发形核。 [参考:7]

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