固体透氧膜法制备金属Ta  

PREPARATION OF METAL TANTALUM BY SOLID OXYGEN-ION MEMBRANE

作　　者：程红伟[1] 鲁雄刚[1] 李谦[1] 刘建民[1] 丁伟中[1] 周国治[1] 

机构地区：[1]上海大学材料科学与工程学院,上海200072

出　　处：《金属学报》2006年第5期500-504,共5页Acta Metallurgica Sinica

基　　金：全国优秀博士论文作者专项基金项目 200031高等学校博士学科点专项科研基金项目 20050280014上海市科委"启明星"跟踪项目03QMH1404资助

摘　　要：利用固体透氧膜(SOM)法进行了从Ta2O5中提取金属Ta的实验．在1150℃,外加直流电解电压3．2 V下, 以55．5％MgF2-44．5％CaF2的熔盐体系为介质,阴极为经过预烧成型的Ta2O5,阳极为氧化锆管内的碳饱和铜液．测试结果显示:Ta2O5阴极中氧含量大大降低甚至消失,Ta2O5还原为金属Ta．A method preparing Ta from Ta2O5 by using solid oxygen-ion membrane （SOM） was proposed. Experiment was carried out at 1150 ℃ and DC electrolysis potential of 3.2 V in the flux system of 55.5%MgF2-44.5%CaF2. Sintered Ta2O5 and carbon saturated liquid copper in zirconia tube were used as the cathode and the anode, respectively. The EDX measured results indicated that the content of oxygen in Ta2O5 decreased obviously even approached to the zero level and Ta2O5 was reduced to tantalum.

关 键 词：金属Ta 固体透氧膜 电解法 

分 类 号：TG146.4[一般工业技术—材料科学与工程]