Fuel cell separator
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United States of America Patent
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Mar 14, 2017
Grant Date -
Jun 18, 2015
app pub date -
Jul 1, 2013
filing date -
Jul 20, 2012
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Abstract
A fuel cell separator (10) which comprises a base (1) constituted of titanium or a titanium alloy and a conductive carbon layer (2) that was formed by press-bonding a carbon powder to the base (1) and that covers the surface thereof; an interlayer (3) having been formed between the base (1) and the carbon layer (2). The interlayer (3) has been formed by a heat treatment in an atmosphere containing a slight amount of oxygen, contains titanium carbide yielded by the reaction of the Ti of the base (1) with the C of the carbon layer (2), and has an oxygen content of 0.1-40 at %.
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