Development of anodization technique on zirconium silicide material for reproducing micro/nanosurface structure: Application to nuclear accident tolerant fuel cladding

摘要: Abstract Zirconium silicide (ZrSi2) surfaces with micro/nanoscale structures were fabricated using an anodization technique different working solutions. The surface evolved depending on the reaction time, and resulting characterized scanning electron microscopy. For all three solutions, conditions for producing micro/nano superhydrophilicity successfully found. etching rate thickness controlled type of In organic bath-based ammonium fluoride (NH4F) was significantly reduced in comparison to that a water hydrofluoric acid (HF) solution. Superior oxidation resistance ZrSi2 maintained superhydrophilic, anodized at 700 °C air regardless increased Leidenfrost temperature by inducing liquid-solid contact between heated coolant. We expect developed be useful future nuclear fuel cladding material applications ensuring safety reactors.