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Soma Kuwabara

As seen in: Color Research & Application
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Thermoelastic properties of liquid Fe-C revealed by sound velocity and density measurements at high pressure

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By Yuta Shimoyama, Hidenori Terasaki, Satoru Urakawa, Yusaku Takubo, Soma Kuwabara, Shunpachi Kishimoto, Tetsu Watanuki, Akihiko Machida, Yoshinori Katayama, Tadashi Kondo
| Color Research & Application Verified
Carbon is one of the possible light elements in the cores of the terrestrial planets. The P wave velocity (V ) and density (?) are important factors for estimating the chemical composition and physical properties of the core. We simultaneously measured the V and ? of Fe-3.5?wt % C up to 3.4?GPa and 1850?K by using ultrasonic pulse-echo method and X-ray absorption methods. The V of liquid Fe-3.5?wt % C decreased linearly with increasing temperature at constant pressure.
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