Influence of composition of amorphous alloy substrate on electroless Co-B and Co-Fe-B deposition

Deposition behavior of electroless Co-B and Co-Fe-B were investigated with respect to the structural and magnetic properties of deposits, using the am orphous ribbon substrates. The catalytic activity sequence of amorphous rib bon electrode for anodic oxidation of DMAB was estimated from the current d ensity-potential curve in the anodic partial electrolytic bath without cont aining the metal ions. Both the deposition rate and potential in the initia l region were obtained in order of the catalytic activity, depending on the alloy compositions of substrates. The linearly step of the deposition rate was obtained against the deposition time. And also, the initial deposition potential may determine the structural and magnetic properties of the depo sit with thickness of mu m order.