| Budget Amount *help |
¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2013: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2012: ¥6,760,000 (Direct Cost: ¥5,200,000、Indirect Cost: ¥1,560,000)
Fiscal Year 2011: ¥8,710,000 (Direct Cost: ¥6,700,000、Indirect Cost: ¥2,010,000)
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| Outline of Final Research Achievements |
In order to clarify the effects of light elements on density and elastic wave velocity of liquid Fe-alloy and to constrain the terrestrial core compositions, we have developed simultaneous measurement system of density and sound velocity for liquid materials under pressure. Density and elastic wave velocity were obtained simultaneously for liquid Ni-S and it is found that there is a linear relationship between these two physical properties. We also obtained following results; density and sound velocity of liquid Fe-Ni-C, effect of pressure on density of Fe-C and on sound velocity of Fe-Ni-C. These results provide important aspects for understanding the effect of light elements on the elastic properties of liquid Fe.
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