二元氧化物熔盐Na_2WO_4-WO_3的成分分析及电沉积钨涂层的研究  

Analysis on Composition of Binary Molten Salt Na_2WO_4-WO_3 and Study of Electrodepositing Tungsten Coatings

作　　者：刘艳红[1,2] 张迎春[2] 李怀林 刘德军 

机构地区：[1]国核(北京)科学技术研究院核电燃料与材料研究所,北京100029 [2]北京科技大学材料科学与工程学院,北京100083

出　　处：《材料导报》2015年第4期34-36,45,共4页Materials Reports

基　　金：国家核电研究院自主创新项目(SNP-KJ-CX-2014-10);国际热核实验反应堆(ITER)中国计划项目(2014GB123000)

摘　　要：二元氧化物熔盐Na2WO4-WO3是一种理想的电沉积钨涂层熔盐体系,研究该熔盐在不同条件下的成分变化及离子组成对电沉积钨涂层技术参数与性能控制非常重要。通过XRD、Raman光谱和SEM等测试分析技术,系统分析了熔融温度和电沉积时间对二元氧化物熔盐Na2WO4-WO3的成分和离子组成的影响,同时分析了在该熔盐中采用电沉积方法获得的钨涂层的表面形貌。结果表明,熔融温度与电沉积时间对熔盐的成分和离子种类都没有影响,电沉积中主要的离子源来自于阳极钨;电沉积获得的涂层为纯金属钨,而且表面致密均匀。Binary molten salt of Na2WO4-WO3 is an ideal system for electrodepositing tungsten coating, hence research on components and ionic compositions of molten salt is of crucial importance for controlling the technical pa rameters and qualities of tungsten coatings. The influences of melting temperature and electrodeposition duration on components and ionic compositions of Na2WO4-WO3 molten salt were systematically analyzed by XRD, Raman spectroscopy and SEM. The surface morphology of tungsten coating electrodeposited from Na2WO4-WO3 molten salt was analyzed at the same time. The results indicate that temperature and duration have no effects on components and ionic compositions, and ion source of tungsten mainly comes from anode tungsten. The pure tungsten coating is uniform and smooth.

关 键 词：熔盐 钨 涂层 

分 类 号：TF111.522[冶金工程—冶金物理化学] TQ151.9[化学工程—电化学工业]