| SHAN Li-mei,ZHAO Ping.Destruction of Hydrogen Permeation Barrier in C02[J],36(2):12-13 |
| Destruction of Hydrogen Permeation Barrier in C02 |
| Received:October 10, 2006 Revised:April 10, 2007 |
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| DOI： |
| KeyWord:Zirconium hydride Barrier Desquamation Carbonization |
| Author | Institution |
| SHAN Li-mei |
Xihua University, Chengdu , China |
| ZHAO Ping |
Xihua University, Chengdu , China |
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| Abstract: |
| Hydrogen permeation barrier was prepared with electrodeposited chromium-carbon on the surface of zirconium hydride. In order to see the capability of hydrogen permeation barrier under the condition of 700℃ and C02 , hydride zirconium hydride simple with Cr-C barrier was heated at 7000C for 72 hours in latm C02. The surface morphology of the zirconium hydrogen permeation barrier was observed and investigated by the SEM. It shows that the reason for carbonization is the oversaturation of carbon in the hydrogen permeation barrier. The appearance of hollows is the proof that the beforehand physical defects is the prerequisite for the barriers desquamation. So it is unsuitable for this hydrogen permeation barrier to work under the condition of 700℃ and C02. |
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