Hot-Press Workability of Ni-based Glassy Alloys in Supercooled Liquid State and Production of the Glassy Alloy Separators for Proton Exchange Membrane Fuel Cell
-
- Yokoyama Masanori
- Institute for Materials Research, Tohoku University
-
- Yamaura Shin-ichi
- Institute for Materials Research, Tohoku University
-
- Kimura Hisamichi
- Institute for Materials Research, Tohoku University
-
- Inoue Akihisa
- Institute for Materials Research, Tohoku University
Bibliographic Information
- Other Title
-
- Ni基金属ガラスの過冷却液体状態における温間プレス加工性および燃料電池用セパレータの試作
- Niキ キンゾク ガラス ノ カレイキャク エキタイ ジョウタイ ニ オケル オンカン プレス カコウセイ オヨビ ネンリョウ デンチヨウ セパレータ ノ シサク
Search this article
Abstract
Optimum alloy compositions of the Ni-Nb-Cr-Mo-P-B, Ni-Cr-Nb-P-B and Ni-Cr-Mo-P-B glassy alloys were investigated for trail production of separator of fuel cell. Eventually the Ni60Nb2Cr16Mo2P16B4, Ni65Cr10Nb5P16B4 and Ni65Cr10Mo5P16B4 glassy alloys were chosen from the viewpoint of having a wide supercooled liquid region.<BR>Then the groove formability of the compositionally optimized alloys in a supercooled liquid state was studied by hot-pressing with the dies having precise grooves. A precise groove forming can be achieved by hot-pressing the Ni60Nb2Cr16Mo2P16B4 and Ni65Cr10Mo5P16B4 glassy alloys in a supercooled liquid state at Tg + 20 K. However, it was difficult to form the precise grooves in the Ni65Cr10Nb5P16B4 glassy alloy.<BR>Finally, we successfully demonstrated that it is possible to form the grooves by hot-pressing using viscous flow deformation in a supercooled liquid state and to produce metallic glassy separators for proton exchange membrane fuel cells (PEMFC).
Journal
-
- Journal of the Japan Society of Powder and Powder Metallurgy
-
Journal of the Japan Society of Powder and Powder Metallurgy 54 (11), 773-777, 2007
Japan Society of Powder and Powder Metallurgy
- Tweet
Details 詳細情報について
-
- CRID
- 1390282681283849216
-
- NII Article ID
- 10019983389
-
- NII Book ID
- AN00222724
-
- COI
- 1:CAS:528:DC%2BD2sXhtlCksr3O
-
- ISSN
- 18809014
- 05328799
-
- NDL BIB ID
- 9279357
-
- Text Lang
- ja
-
- Data Source
-
- JaLC
- NDL
- Crossref
- CiNii Articles
-
- Abstract License Flag
- Disallowed