Ion beam induced spinodal decomposition and amorphization in the immiscible bilayer system UMo/Mg
Source abstract
Abstract
Abstract High density fuel uranium–molybdenum (UMo) alloy embedded in an Mg matrix has been investigated as a candidate material for high density fuel of research reactors. UMo/Mg bilayers were prepared and irradiated with swift heavy ions to simulate damages created by fission fragments during in-pile irradiation. Scanning transmission electron microscopy and X-ray microdiffraction reveal the micro-structural evolution during irradiation including amorphization and spinodal decomposition. Spinodal decomposition during irradiation results in a chessboard-like pattern with a U-rich and a U-poor phase. In addition, an irradiation-induced phase U0.9Mg0.1 has been found. In comparison to UMo embedded in an Al matrix, the diffusion reactions and the amorphous region are well detained.
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Research context
OpenAlex topics: Nuclear Materials and Properties · Fusion materials and technologies · Rare-earth and actinide compounds
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References (37)
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