Cleavage cracking across twin boundaries in free-standing silicon thin films |
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| Authors: | Jin Chen Weiyi Lu Yu Qiao |
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| Affiliation: | (1) Department of Structural Engineering, University of California – San Diego, La Jolla, CA 92093-0085, USA |
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| Abstract: | Cleavage cracking across twin boundaries in free-standing silicon thin films is investigated in a microtensile fracture experiment. If the twist misorientation is relatively small, the crack front transmission can be quite smooth; otherwise the fracture surface may be either planar or broken down into parallel terrains. In all the cases, the local fracture resistance tends to increase. PACS 62.20.-x; 68.35.bg; 68.35.Gy; 68.37.-d; 62.20.mm |
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