| 发明名称 |
TITANIUM MATERIAL OR TITANIUM ALLOY MATERIAL HAVING SURFACE ELECTRICAL CONDUCTIVITY AND METHOD FOR PRODUCING THE SAME, AND FUEL CELL SEPARATOR AND FUEL CELL USING THE SAME |
| 摘要 |
In a titanium material or a titanium alloy material, in an oxide film formed on a surface of a titanium or a titanium alloy, the composition ratio of TiO (ITiO/(ITi+ITiO)×100 found from the maximum intensity of the X-ray diffraction peaks of TiO (ITiO) and the maximum intensity of the X-ray diffraction peaks of metal titanium (ITi) in X-ray diffraction measured at an incident angle to the surface of 0.3° is 0.5% or more. A titanium material or a titanium alloy material, and a fuel cell separator and a polymer electrolyte fuel cell having good contact-to-carbon electrical conductivity and good durability can be provided. |
| 申请公布号 |
US2016329575(A1) |
申请公布日期 |
2016.11.10 |
| 申请号 |
US201515109342 |
申请日期 |
2015.01.22 |
| 申请人 |
NIPPON STEEL & SUMITOMO METAL CORPORATION |
发明人 |
TAKAHASHI Kazuhiro;KAGAWA Taku;KIMOTO Masanari;IMAMURA Junko;TOKUNO Kiyonori;KURODA Atsuhiko |
| 分类号 |
H01M8/0228;H01M8/0215;H01M8/0208;H01M8/0206;C22C14/00;C22F1/18 |
主分类号 |
H01M8/0228 |
| 代理机构 |
|
代理人 |
|
| 主权项 |
1. A titanium material or a titanium alloy material, wherein
in an oxide film formed on a surface of a titanium or a titanium alloy, the composition ratio of TiO (ITiO/(ITi+ITiO))×100 found from the maximum intensity of the X-ray diffraction peaks of TiO (ITiO) and the maximum intensity of the X-ray diffraction peaks of metal titanium (ITi) in X-ray diffraction measured at an incident angle to the surface of 0.3° is 0.5% or more. |
| 地址 |
Tokyo JP |
