Abstract
The standard technique for applying zirconium (Zr) to uranium (U) is roll bonding, where a thin foil of Zr is placed on each side of a U plate which is then encased in steel and rolled at high temperatures. This study evaluates an alternative approach in which Zr layers are plasma sprayed on U and then clad with aluminum (Al) by hot isostatic pressing. The interface region between the Zr and Al is examined by SEM, revealing a reaction layer consisting of Al, Zr, and Si. SEM images show good conformance between the Al sheet and Zr surface along with the presence of Al in the porous Zr. Initial test results indicate that increased interface roughness and Al penetration into the plasma-sprayed Zr have the potential to improve bond strength by impeding crack propagation in the reaction layer.
