Formation of rosette-like nanopatterns by selective corrosion of metallic glass

Cu nanostructured patterns were spontaneously generated by the selective corrosion of CuZr metallic glass ribbons. Free corrosion of glassy CuZr ribbons in dilute HCl leads to the selective dissolution of Zr atoms from the glassy substrate and leaves behind nanocrystalline Cu with self-assembled patterns. This study may lead to the development of a facile approach to synthesizing nanostructured architectures with well-defined patterns by manipulating the corrosion process of metallic glass. (author)