超导材料用无氧铜过硫酸钠溶液清洗工艺研究  

SODIUM PERSULFATE SOLUTION CLEANING PROGRESS RESEARCH OF THE OXYGEN-FREE COPPER FOR SUPERCONDUCTING MATERIALS

作　　者：周安林[1,2] 陈江[1,2] 刘建伟[1,2] 李建峰[1,2] 刘向宏[1,2] 冯勇[1,2] 张平祥[1,2] 

机构地区：[1]西部超导材料科技股份有限公司,西安710021 [2]超导材料制备国家工程实验室,西安710021

出　　处：《低温物理学报》2013年第4期282-287,共6页Low Temperature Physical Letters

基　　金：国家863专项(批准号:2007AA03Z205);国家973项目(批准号:2008CB717903);国家科技部ITER专项(批准号:2008GB101001);国际科技合作项目(批准号:2007DFD50700)资助的课题~~

摘　　要：无氧铜是超导材料的重要组元,在组装前必须达到均一、光亮、洁净、稳定的高质量表面.本文研究了采用过硫酸钠配合硫酸清洗液的清洗工艺.结果表明:⑴过硫酸钠和硫酸互配的清洗液配方清洗无氧铜能获得均一光亮稳定的表面清洗质量,过硫酸钠浓度、硫酸浓度和温度是清洗液关键参数;⑵采用30%硝酸预酸洗有利于创造均一的腐蚀界面,排除初始状态的复杂性对清洗表面稳定性的干扰和影响;⑶采用5%硫酸稀酸洗能够增强表面酸液的溶解,增强被清洗物料表面稳定性和防护能力;⑷可以通过过硫酸钠浓度、铜离子浓度对清洗液特性进行表征.Oxygen-free copper which is used for superconducting materials needs high qualitative surface. The surface of the oxygen-free should be uniform, bright, clean and stable. So, it is important to research the progress of cleaning the surface. Cleaning technology using solution of sodium persulfate with sulfuric acid are studied in this paper. The results show that： Concentration of Sodium persulfate, concentration of sulfuric acid and temperature are the key parameters. Nitric acid pickling ensure the quality stability. Sulfuric acid pickling can enhance the disso- lution of acid liquid and enhance the stability of surface material. Concentration of sodium persulfate and concentra- tion of copper ion was used to characterize the cleaning liquid properties.

关 键 词：表面 过硫酸钠 均一 结晶 

分 类 号：TM26[一般工业技术—材料科学与工程]