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《Journal of Xi'An Technological University》 2007-01
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Study on the Etch Pits of Copper Single Crystal Wires

YAN Wen,WANG Xue-yan,CHEN Jian,LI Wei,FAN Xin-hui(School of Materials and Chemical Engineering,Xi'an Technological University,Xi'an 710032,China)  
The etch pits of copper single crystal wires have been systematically studied.The experimentations were carried out from different corrosive,corroded time and crystal orientation of material.The result shows that the etch pits are formed when the mixture ratio of iron chloride and muriatic acid solution is 20 g FeCl3∶5 ml HCl∶100 ml H2O.EPD increases with increasing the corroded time and deformative extent.However,EPD tends to be saturation when the corroded time and deformative extent reaches a value.EPD on(111) plane is higher than(100) plane in the copper single crystal wires.The shape of etch pits on the face of crystal has been observed by SEM,and confirmed to be dislocation etch pits.The dislocation etch pits density(EPD) of copper single wires is related with corroded time,deformative extent and crystal orientation of material.
【Fund】: 国家自然科学基金(50471098);; 陕西省自然科学基金(2003E101)
【CateGory Index】: TG172
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