Characteristics of titanium deposits by electrolysis in molten chloride-fluoride mixture
Characteristics of titanium deposits by electrolysis in molten chloride-fluoride mixture
复制标题
熔融氯化物-氟化物混合物电解沉积钛的特性
DOI：
10.1007/bf00348783
复制
发表时间：
1994
影响因子：
2.9
通讯作者：
T. Oki
中科院分区：
文献类型：
--
作者：
D. Wei;M. Okido;T. Oki
在含2mol%六氟钛酸钾的KCl-NaCl-LiCl共晶熔盐中，采用恒电流和脉冲电流两种方法在304不锈钢基体上制备了钛镀层。采用X射线衍射和扫描电镜分别研究了电解条件对钛沉积层晶体取向和形貌的影响。结果表明，钛沉积层的取向指数随电解温度、电解时间、电流密度和脉冲波形的变化而变化。沉积物呈颗粒状结构，随着温度的升高，颗粒变大。在873 K以上的脉冲电流下，钛镀层的耐蚀性优于纯钛。
Titanium deposits were prepared on 304 stainless steel substrates by both constant current and pulse current methods in molten KCl-NaCl-LiCl eutectic salts with 2 mol % potassium hexafluorotitanate. The influence of electrolysis conditions on the crystal orientation and morphology of the titanium deposits was investigated by using X-ray diffraction and scanning electron microscopy, respectively. It was found that the orientation index of the titanium deposits varied with temperature, electrolysis time, current density and pulse shape during electrolysis. The deposits showed a granular structure, in which the grains became larger with increase in temperature. Titanium deposits with pulse current above 873 K had a better corrosion resistance than pure titanium sheet.