9R structure in drawn industrial single crystal copper wires |
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| Authors: | CHEN Jian YAN Wen FAN Xin-hui |
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| Affiliation: | 1. School of Materials Science and Chemical Engineering, Xi''an Technological University, Xi''an 710032, China;2. Department of Applied Physics, Northwestern Polytechical University, Xi''an 710072, China |
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| Abstract: | By using transmission electron microscopy, the microstructures of drawn industrial single crystal copper wires produced by Ohno Continuous Casting(OCC) process were analyzed. The results show that the typical microstructures in the wires mainly include extended planar dislocation boundaries, a small fraction of twins and some dislocation cells sharing boundaries parallel to drawn direction. Besides the typical microstructures, 9R structure configurations were observed in the wires. The formation of 9R polytypes may be caused by the coupled emission of Shockley dislocations from a boundary. |
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| Keywords: | industrial single crystal copper wires 9R structure cold drawing |
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