Electrodeposition and characterisation of Al-W alloy films from ionic liquid

20th Chemnitz Seminar on Materials Engineering - 20. Werkstofftechnisches Kolloquium

Höhlich, D.^1 ; Wachner, D.^1 ; Müller, M.^1 ; Scharf, I.^1 ; Lampke, T.^1

Institute of Materials Science and Engineering, Chemnitz University of Technology, Chemnitz

09125, Germany^1

关键词: 1-ethyl-3-methylimidazolium chloride;    Alloy film;    Aluminium chloride;    Chemical compositions;    Gloveboxes;    Inductively coupled plasma-optical emission spectroscopy;    Liquid solution;    Tungsten content;   

Others  :  https://iopscience.iop.org/article/10.1088/1757-899X/373/1/012007/pdf
DOI  :  10.1088/1757-899X/373/1/012007

来源: IOP

【 摘 要 】

Al-W alloy films were prepared by electrodeposition using anhydrous 1-ethyl-3-methylimidazolium chloride (EMIMCl) ionic-liquid solution with aluminium chloride in a ratio of 1:1.5. As a commercially available tungsten precursor, tungsten hexachloride was used. The metal is dissolved in the ionic liquid at concentrations up to 0.06 mol/l. The deposition took place outside the glove box with a continuous argon stream over the electrolyte at a temperature of 60 °C with a current density of 1 A/m2. Resulting alloys show a tungsten content higher than 20 wt% (3.5 at%). The phase composition of Al-W alloys was observed by X-ray diffraction (XRD), and the chemical composition was characterised by scanning electron microscopy (SEM) and inductively-coupled plasma optical emission spectroscopy (ICP-OES).