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The Fabrication of the Single Crystal Wire from Cu Single Crystal Grown by the Czochralski Method and its Physical Properties  

Park, Jeung-Hun (Department of Physics, Pusan National University)
Cha, Su-Young (Department of Physics, Pusan National University)
Park, Sang-Eon (MCLab. Co. Ltd., Pusan National University)
Kim, Sung-Kyu (Research Center for Dielectric and Advanced Matter Physics (RCDAMP), Pusan National University)
Cho, Chae-Ryong (College of Nano Science and Technology, Pusan National University)
Park, Hyuk-K. (Department of Physics, Pusan National University)
Kim, Hyung-Chan (Korea Basic Science Institute(KBSI))
Jeong, Myung-Hwa (Korea Basic Science Institute(KBSI))
Jeong, Se-Young (College of Nano Science and Technology, Pusan National University)
Publication Information
Korean Journal of Crystallography / v.16, no.2, 2005 , pp. 141-148 More about this Journal
Abstract
It is well known that the general metals have a lot of grain boundaries. The grain boundaries play a negative role to increase the resistivity and to decrease the conductivity. The small resistivity and the large conductivity have been a goal of the material scientists, and no signal noise, perfect signal transfer, and the realization of the real sound are the dream of electronic engineers and audio manias. Generally, oxygen free copper (OFC) and Ohno continuous casting (OCC) copper cables have been used for the purpose of the precise signal transfer and low noise. However they still include a lot of grain boundaries. In our study, we have grown the single crystal by the Czochralski method and succeeded to produce single crystal wires from the crystal in the dimension of $0.5{\times}0.5{\times}2500mm$. The produced wire still possesses very good single crystal properties. We observed the structure of the wire, and measured the resistance and impedance. Glow Discharge Spectrometer (GDS) was used for analyzing the compositions of copper single crystals and commercial copper. Current-Voltage curve, resistance, total harmonic distortion and speaker frequency response were measured for comparing electrical and acoustic properties of two samples.
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