| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a fuel-cell separator manufacturing method that can manufacture a fuel-cell separator which is excellent in corrosion resistance, high in the adhesion of a noble-metal layer, low in contact resistance while being excellent in productivity, and made of Ti or a Ti-alloy. <P>SOLUTION: The manufacturing method for a fuel-cell separator 1 includes a recessed-part forming step S1 in which a recessed part to form a gas channel 11 for circulating gas is formed at least at a part on the surface of a substrate 2 as a Ti or Ti-alloy made fuel-cell separator, a noble metal layer forming step S2 for employing a CVD method to form a noble metal layer 3 with a thickness of ≥2 nm which is composed by including at least one or more kinds of noble metals selected from among Ru, Rh, Pd, Os, Ir, Pt, and Au on the surface of the substrate 2 having the recessed part, and a heat-treatment step S3 for subjecting the substrate 2 having the noble-metal layer 3 in the noble-metal-layer forming step S2 to heat treatment at a prescribed heat-treatment temperature and under prescribed oxygen partial pressure. <P>COPYRIGHT: (C)2008,JPO&INPIT |
