Size Effect in Cleavage Cracking in Polycrystalline Thin Films
Description:
The reliability of polycrystalline thin films is essential to assuring safe performance of micro/nano-electromechanical systems. Usually, they are of through-thickness grain structures and are brittle at working temperatures, and therefore their fracture properties are dominated by the resistances offered by grain boundaries to cleavage cracking [1,2]. As a cleavage crack front propagates across a high-angle grain boundary, it would first penetrate across a number of break-through points [3], a…
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Date:
July 27, 2007
Creator:
Qiao, Yu
Item Type:
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Partner:
UNT Libraries Government Documents Department