2017 Fiscal Year Final Research Report
Validity and application of hydrogen / oxygen sensor application to steam oxidation research of heat-resistant material
| Project/Area Number |
15K06453
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Multi-year Fund |
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| Section | 一般 |
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| Research Field |
Composite materials/Surface and interface engineering
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| Research Institution | Akita University |
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Principal Investigator |
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| Co-Investigator(Kenkyū-buntansha) |
金児 紘征 秋田大学, 工学資源学部, 教授 (20006688)
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| Project Period (FY) |
2015-04-01 – 2018-03-31
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| Keywords | 水蒸気酸化 / 耐熱材料 / 水素センサー / 酸素ポンプ・センサー |
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| Outline of Final Research Achievements |
The water vapor oxidation behaviors of Fe and Fe-Cr alloys under isothermal and heat-cyclic conditions in an Ar-H2O atmosphere were investigated by measuring both the hydrogen partial pressure using a hydrogen sensor and the oxidizing current of hydrogen using an oxygen pump-sensor. The isothermal oxidation test at 1173 K showed that the mass gain of the Fe-20Cr alloy was the highest. The cyclic oxidation test indicated that the Fe and Fe-30Cr alloy had a lower oxidation rate in the second cycle than in the first cycle. The oxidation rates measured by the hydrogen sensor and the oxygen pump-sensor were showed the same behavior during the isothermal oxidation test. Since the oxidation rate is measured in situ using the hydrogen sensor and oxygen pump-sensor methods, it was clarified that both methods are effective for studying the water vapor oxidation behavior.
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| Free Research Field |
高温酸化・高温腐食・表面改質
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