| 摘要 |
1,118,151. Coating with metals. LICENTIA PATENT-VERWALTUNGS G. m. b. H. June 11, 1965 [June 12, 1964], No. 24777/65. Heading C7F. [Also in Division H1] A fuel cell electrode consisting of a porous substrate, such as foamed metal, silicon carbide, alumina or ceramics, coated with a boride, carbide, nitride or silicide of at least one of the transition metals Ti, Zr, Hf, V, Nb, Ta, Cr, Mo, W, Mn, Fe, Co or Ni is formed by depositing the coating in a reducing atmosphere from a mixture of an easily vaporizable compound of B, C, N 2 or Si and an easily vaporizable compound of one or more of the transition metals. The substrate may be heated to 600‹ -1300‹ C in an inert gas and after evacuating the container the mixture of reactive gas is then introduced. The steps of evacuation and introduction of the reactive gases may be repeated several times. |
