Title:
METHOD FOR PRODUCING METAL MATERIAL, METHOD FOR PRODUCING SEPARATOR FOR FUEL CELLS, AND STAINLESS STEEL MATERIAL
Document Type and Number:
WIPO Patent Application WO/2019/176911
Kind Code:
A1
Abstract:
A method for producing a metal material, which comprises: a slurry supply step wherein a slurry that contains TiO2 particles is supplied to the surface of a metal base material; and a heat treatment step wherein the base material, to which the slurry has been supplied, is subjected to a heat treatment in an atmosphere that has an oxygen partial pressure of 10-2 Pa or less, thereby forming a titanium oxide layer on the base material, said titanium oxide layer containing a TiOx (0 < x < 2) phase as the main phase. It is preferable that the base material is heat-treated at a temperature of 650°C or higher in the heat treatment step. By this production method, a metal material that has a titanium oxide layer, which contains a TiOx (0 < x < 2) phase as the main phase, on a base material is able to be obtained with high productivity.
Inventors:
SATO HARUKA (JP)
IMAMURA JUNKO (JP)
NOSE KOICHI (JP)
KAMINAKA HIDEYA (JP)
IMAMURA JUNKO (JP)
NOSE KOICHI (JP)
KAMINAKA HIDEYA (JP)
Application Number:
PCT/JP2019/009903
Publication Date:
September 19, 2019
Filing Date:
March 12, 2019
Export Citation:
Assignee:
NIPPON STEEL CORP (JP)
International Classes:
C23C26/00; C23C20/08; H01M8/0206; H01M8/0208; H01M8/0215; H01M8/0228; H01M8/10
Domestic Patent References:
| WO2016140306A1 | 2016-09-09 |
Foreign References:
| JP2002085978A | 2002-03-26 | |||
| JP2005332684A | 2005-12-02 | |||
| JP2010185073A | 2010-08-26 | |||
| JP2012028045A | 2012-02-09 |
Attorney, Agent or Firm:
ASCEND IP LAW FIRM (JP)
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