| Budget Amount *help |
¥17,940,000 (Direct Cost: ¥13,800,000、Indirect Cost: ¥4,140,000)
Fiscal Year 2011: ¥2,600,000 (Direct Cost: ¥2,000,000、Indirect Cost: ¥600,000)
Fiscal Year 2010: ¥3,380,000 (Direct Cost: ¥2,600,000、Indirect Cost: ¥780,000)
Fiscal Year 2009: ¥11,960,000 (Direct Cost: ¥9,200,000、Indirect Cost: ¥2,760,000)
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| Research Abstract |
In high-temperature oxidation of alloy, a growth of the oxide scale is depends on the gas supply from the atmosphere, surface reaction, and ionic diffusion in the oxide scale. Therefore, the oxygen potential of the scale surface is reduced by surface reaction and gas supply. Present study revealed that the distribution of oxygen potentials on high temperature oxidation of iron from the atmosphere to the scale surface by electromotive forces caused by a stabilized ZrO2 oxygen sensor with electrodes. In Ar-1% O2 atmosphere, the oxygen potential decreases with approaching the oxide film, the difference between the oxygen potential in the surface reaction was about-300kJmol^<-1>.
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