| abstract |
The present invention relates to a multilayer coating comprising a layer (13) of nickel, a layer (20) of tin-nickel alloy, a layer (22) of non-precious refractory metal, a layer (26) of the sandwich type. consisting of multiple alternating layers of non-precious refractory metal (30) and a non-precious refractory metal compound (28), a layer (32) of non-precious refractory metal compound, and a layer (34) made of of a non-precious refractory metal oxide or reaction products of a non-precious refractory metal, oxygen and nitrogen. |