Cu-In合金的制备和表征  

Preparation and Characterization of Copper-Indium Alloy Ribbon

作　　者：聂洪波[1] 王延来[1] 果世驹[1] 杨永刚[1] 王璐鹏[1] 

机构地区：[1]北京科技大学材料科学与工程学院,北京100083

出　　处：《稀有金属》2008年第1期23-27,共5页Chinese Journal of Rare Metals

摘　　要：使用感应熔炼法制备Cu-In合金,并尝试使用单辊甩带法制备连续均匀的Cu-In合金薄带,利用XRD,SEM和EDS对制得的Cu-In合金进行表征。结果表明:Cu-In合金凝固过程存在偏析现象,合金内部呈现出不连续的富Cu区域和连续的富In区域,并且在富In区域中心部位存在着许多细小裂纹,单质In仅存在于裂纹周围。感应熔炼的Cu-In合金具有Cu11In9和In混合物相结构,它为研究CuInSe2薄膜太阳电池提供了一种新材料;但使用单辊甩带法无法制备In含量为55%(摩尔分数)的连续均匀Cu-In合金薄带。Copper-indium alloys were prepared by induction melting and were attempted to fabricate continuous uniform copper-indium alloy ribbon by means of melt spinning. The resultant specimens were characterized by X-Ray Diffractometry（XRD）,Scanning Electron Microscopy（SEM） and Energy Dispersive Spectrometry（EDS）.The characterized results indicated that composition segregation occurred during nonequilibrium solidification of the alloys and discontinuous Cu-rich phases and continuous In-rich phases existed.A large number of microcrack appeared in the central part of In-rich regions,and a region containing only indium was identified nearby the cracks,since the region represented the last liquid to solidify.Copper-Indium alloys prepared by induction melting were determined to be the mixtures of Cu11In9 phase with In-rich phase and the mixtures would offer a new material for study of the CuInSe2 film solar cell.Unfortunately,the continuous uniform tape of Cu-55mol%In alloy could not be fabricated by melt spinning yet.

关 键 词：Cu-In合金 感应熔炼法 单辊甩带法 非平衡固化 

分 类 号：TG146.4[一般工业技术—材料科学与工程]