Electrochemical deposition of uranium dioxide coatings on alloy 600: effect of annealing on Ni and Cu interlayer mixing
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- 作者：R. K. Choudhary ; P. Mishra ; A. Samanta…
- 关键词：Uranium dioxide coating ; Electrodeposition ; Alloy 600 ; Interlayer ; Annealing
- 刊名：Journal of Radioanalytical and Nuclear Chemistry
- 出版年：2017
- 出版时间：January 2017
- 年：2017
- 卷：311
- 期：1
- 页码：455-464
- 全文大小：
- 刊物类别：Chemistry and Materials Science
- 刊物主题：Nuclear Chemistry; Physical Chemistry; Nuclear Physics, Heavy Ions, Hadrons; Diagnostic Radiology; Inorganic Chemistry;
- 出版者：Springer Netherlands
- ISSN：1588-2780
- 卷排序：311
文摘
3.5–4.75 mg cm−2 thick UO2 coatings were electrodeposited using alkaline uranyl nitrate-ammonium oxalate bath on alloy 600 onto which nickel and copper interlayers were previously electrochemically formed. Micro laser Raman spectroscopy of annealed coating confirmed the formation of UO2 by showing a peak at 447 cm−1. Scanning electron microscopy showed uniform morphology with an average grain size of 1 µm. Glow discharge optical emission spectroscopy revealed no significant diffusion of nickel and copper into UO2 due to annealing. Rutherford backscattering spectroscopy showed increased thickness of annealed coating. Scratch adhesion test indicated improved cohesive and adhesive strength of coating after annealing.