To provide a composite layered product comprising a porous support and a metal glass thin film and sufficiently usable as a gas separation membrane and a simple production method of the product.
The composite layered body comprises a metal glass sprayed coating free from pin holes and formed on the surface of a porous support. Metal glass is sprayed by high speed flame spraying to the surface of the porous support to firmly and directly layer the metal glass sprayed coating which is dense, free from pin holes, and has uniform amorphous phase on the surface of the porous support. If those having gas permselectivity against hydrogen or the like are used as metal glass, the composite layered product can sufficiently be used as a gas separation membrane for hydrogen or the like without requiring any particular sealing treatment. Since the sprayed coating is obtained in uniform amorphous phase, it has less hydrogen embrittleness than a crystalline metal and excellent in corrosion resistance and strength. Also, since high speed flame spraying can be carried out in atmospheric air, the production is easy.
OHARA MASAKI
IGARASHI TAKANORI
MOCHIZUKI ATSUO
KIMURA HISAMICHI
INOUE AKIHISA
UNIV TOHOKU
| JP2006214000A | 2006-08-17 | |||
| JP2003253417A | 2003-09-10 |