The extensively evaluated and consistent thermodynamic database, the Molten Salt Thermal Properties Database-Thermochemical (MSTDB-TC), was used along with additional thermodynamic values from other sources as examples of ways to examine molten salt reactor (MSR) fuel behavior. Relative stability with respect to halide potential and temperature for likely fuel and fission product components were mapped in Ellingham diagrams for the chloride and fluoride systems. The Ellingham diagrams provide a rich, visual means for identifying halide-forming components in proposed fuel/solvent salt systems.
View Article and Find Full Text PDFA series of alkali metal rare-earth borates were prepared via high-temperature flux crystal growth, and their structures were characterized by single crystal X-ray diffraction (SXRD). NaLn(BO) (Ln = La-Lu) crystallize in the monoclinic space group 2/, the potassium series KLn(BO) (Ln = La-Tb) crystallize in the orthorhombic space group while the Ln = Dy, Ho, Tm, Yb analogues crystallize in the orthorhombic space group . To demonstrate the generality of this synthetic technique, high-entropy oxide (HEO) compositions KNdEuGdDyHo(BO) and KNdEuHoTmYb(BO) were obtained in single crystal form.
View Article and Find Full Text PDFA method of determining the mechanical relaxation behavior of polymer thin films is presented that employs a kirigami-inspired sample support. The film of interest is placed on the kirigami support and loaded into a dynamic mechanical analyzer. When the composite is placed in tension, the substrate effectively transfers the load to the film of interest.
View Article and Find Full Text PDF