The effects of hydrogen absorption in U3Si5 and its thermodynamic properties
Source abstract
Abstract
The hydrogen absorption behavior of was examined using a Sieverts apparatus. Experimental results revealed the formation of a hydride phase with a stoichiometry reaching at pressures up to 250 kPa and temperatures below 300 °C. By employing Van `t Hoff analysis, the enthalpy and entropy of formation for the newly formed hydride phase were measured as -19.73 k J ⋅ m o l − 1 and -251.18 J ⋅ m o l − 1 ⋅ T − 1 , respectively. Rietveld refinement showcased an expansion in lattice parameters a and c, resulting in an overall increase in unit cell volume of up to 8%; volume expansion can induce structural failures within the material.
Source: expertdata · Quality: candidate unverified · Source record ↗
Research context
OpenAlex topics: Nuclear Materials and Properties · Rare-earth and actinide compounds · Radioactive element chemistry and processing
SciVX discovery tags are terminology-based. OpenAlex topics are source-provided classifications.
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