To assess the potential impact of using hafnium as absorber material in LWRs high temperature accidental situations, oxidation behavior was studied up to 1400°C, i.e. at conditions relevant severe accidents. Different sample geometries were tested and oxidized steam/argon mixtures, either a furnace or thermogravimetric analyzer. Metallographic examinations, hydrogen measurements EPMA oxygen pro...

The electrochemical fabrication of memristive devices based on Hf is demonstrated. Electrolyte incorporation in memristors confirmed oxides grown 0.1, 0.5 and 1 M phosphate buffers. impact species conductive filaments formation described. use buffer allows Hf-O-P compounds that hinder into the bulk memristors. Endurance, retention memory characteristics anodic suggest improved properties, as co...

industries, its nuclear properties in the pure metallic form make it highly desirable for nuclear applications. Zr is highly corrosion resistant and has a high melting point (2128 K) with a low thermal neutron absorption cross-section of Zr T = 0.18 b, which is significantly smaller than that of hafnium Hf T =115 b) (Speer, 1982), an element that coexists with Zr in nature. This makes Zr ideal ...