摘要
采用旋转法对用于电沉积制备钨涂层的Na_(2)WO_(4)-WO_(3)熔盐体系的高温黏度进行了研究,讨论了熔盐体系温度对沉积物的形貌与物相的影响。结果表明,在973~1223 K的温度范围内,随温度的升高,熔盐黏度呈明显下降的趋势。当温度低于1113 K时,无法在石墨表面获得钨涂层。该熔盐体系电沉积制备表面致密均匀的纯钨涂层的适宜温度为1173~1198 K。
The viscosity of a Na_(2)WO_(4)-WO_(3) molten salt used for electrodeposition of tungsten was studied by rotating method.The effect of temperature of the molten salt on morphology and phase constitution of the deposit was discussed.The results showed that the viscosity of the molten salt was decreased with the increasing of temperature between 973 K and 1223 K.It was impossible to form a tungsten coating on graphite surface when the temperature was lower than 1113 K.The suitable temperature for electrodeposition of a uniform and compact tungsten coating from the molten salt is 1173 K to 1223 K.
作者
孙宁波
郎少庭
司江菊
SUN Ningbo;LANG Shaoting;SI Jiangju(School of Chemistry and Materials Engineering,Xinxiang University,Xinxiang 453000,China;Foshan(Southern China)Institute for New Materials,Foshan 528000,China)
出处
《电镀与涂饰》
CAS
北大核心
2022年第5期335-338,共4页
Electroplating & Finishing
基金
国家自然科学基金(51801171,51901200,52001270)
广东省基础与应用基础研究基金区域联合基金(2019A1515110725)。
关键词
钨
电沉积
钨酸钠
三氧化钨
熔盐
黏度
形貌
物相
tungsten
electrodeposition
sodium tungstate
tungsten trioxide
molten salt
viscosity
morphology
phase
