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| Theoretical Analysis And Experimental Study Of Thermal Expansion Coefficient Of Copper Wire |
| LIU Jian-ke,CUI Yong-hong |
| Shaanxi University of Science & Technology, Xi’an, Shaanxi 710021, China |
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Abstract The coefficient of thermal expansion of copper of face centered cubic crystal varying with temperature are investigated, and precision instruments DIL402PC thermal expansion instrument measured thermal expansion coefficient of copper in the experiment,that the expansion coefficient of the copper remained in the 2.0836×10-5/℃ between 100℃and 380℃ is founded,which is larger than that of the general measurement of instruments in the laboratory. When it is over 380℃, coefficient of thermal expansion of copper increases linearly with temperature. The results of theoretical analysis and experimental determination remain basically consistent, which results show that the application of this theory can also explain the coefficient of thermal expansion of face-centered structure of other crystal.
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Received: 15 May 2014
Published: 10 December 2015
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［1］Camurri C, Carrasco C, Leite R, et al.
Influence of Impurities in Cathodic Copper on the Ductility of Copper Wires［J］. J Materials Eng and Performance, 2012, 21(7): 1474-1478.
［2］李群,韩俊霞,张玉存.异形热态锻件几何尺寸测量方法的研究［J］. 计量学报, 2014, 35(2): 97-101.
［3］陈国强,赵俊伟．线性参数累积法处理时的精度估计［J］. 计量学报, 2006, 27(3): 55-58.
［4］刘超,周铁,郑瑞伦.面心立方晶体的膨胀系数和弹性模量［J］.西南师范大学学报, 2006,31(5): 83-87.
［5］刘杨.基于origin的金属线膨胀系数实验数据处理方法［J］.吉首大学学报(自然科学版),2011,32(3):42-43.
［6］陈向炜.李兴章.李彦敏.用迈克耳逊干涉仪测量金属线胀系数［J］.大学物理实验,1996,9(1):17-18. |
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2016, Vol. 37 
