| 摘要 |
PCT No. PCT/JP96/00914 Sec. 371 Date Feb. 14, 1997 Sec. 102(e) Date Feb. 14, 1997 PCT Filed Apr. 3, 1996 PCT Pub. No. WO96/31634 PCT Pub. Date Oct. 10, 1996Metallic materials which possess suitable characteristics for serving as an intermediate layer between a thermal barrier coating and a matrix substrate, or as a separator for a solid oxide fuel cell, contain 15 to 40 wt % Cr, 5 to 15 wt % W, 0.01 to 1 wt % M (where M is one or more than two elements chosen from Y, Hf, Ce, La, Nd, and Dy), 0.001 to 0.01 wt % B and a balance of Fe. The average value of the coefficient of thermal expansion of the metallic material is in a range from more than 12.0x10-6/K to less than 13.0x10-6/K in a temperature range from room temperature to 1,000 DEG C., and the value is close to that of stabilized zirconia. The metallic materials display excellent high temperature oxidation resistance.
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