Electrochemical deposition of uranium dioxide coatings on alloy 600: effect of annealing on Ni and Cu interlayer mixing期刊界 All Journals 搜尽天下杂志传播学术成果专业期刊搜索期刊信息化学术搜索

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Electrochemical deposition of uranium dioxide coatings on alloy 600: effect of annealing on Ni and Cu interlayer mixing

Authors:	Choudhary R K Mishra P Samanta A Haider J Mallik G K Singh K Kain V

Institution:	1.Materials Processing and Corrosion Engineering Division, Bhabha Atomic Research Centre, Mumbai, 400085, India ;2.Post Irradiation Examination Division, Bhabha Atomic Research Centre, Mumbai, 400085, India ;3.Materials Science Division, Bhabha Atomic Research Centre, Mumbai, 400085, India ;

Abstract:	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.

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