B - Operations – Transporting – 32 – B
Patent
B - Operations, Transporting
32
B
B32B 15/01 (2006.01) B60L 11/18 (2006.01) C01B 21/06 (2006.01) C23C 8/36 (2006.01) C23C 8/38 (2006.01) H01M 2/16 (2006.01) H01M 8/24 (2006.01) C22C 38/18 (2006.01)
Patent
CA 2597311
A transition metal nitride comprises a first layer formed of a nitride of a stainless steel containing at least Fe and Cr and a second layer formed on the first layer and having an exposed surface. The second layer is formed of another nitride having contents of components that differ from those in the first layer. The first and second layers have a composition distribution in which a Cr concentration is continuously changed from the first layer to the second layer in a thickness direction of these layers, and the second layer has a nitride deposition protruding from a base portion of an exposed surface. A fuel cell separator comprises a base layer formed of a stainless steel containing at least Fe and Cr and a nitride layer formed of a transition metal nitride as described. Methods of forming transition metal nitrides and fuel cell separators are also included, as is a fuel cell vehicle including a fuel cell stack.
Chiba Nobutaka
Kano Makoto
Uchiyama Noriko
Marks & Clerk
Nissan Motor Co. Ltd.
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