| 摘要 |
PROBLEM TO BE SOLVED: To provide a method for producing a porous metal by which various porous metals can be easily produced, and to provide porous metals produced by the production method. SOLUTION: A powdery metal material is melted in an inert gas atmosphere, and is thereafter cooled, so as to be solidified. Further, it is also possible that, a powdery metal material is melted in an inert gas atmosphere under high pressure, is thereafter decompressed, and, is simultaneously cooled and solidified. Further, it is possible that, a bulk-shaped metal material 12 is arranged at the upper part of a powdery metal material 11, thereafter, the powdery metal material 11 and the bulk-shaped metal material 12 are melted in an inert gas atmosphere, and, after bubbles 14 comprised in a part 13 at which the powdery metal material has been melted increase to a part 15 at which the bulk-shaped metal material has been melted, cooling and solidification are performed. COPYRIGHT: (C)2010,JPO&INPIT
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