期刊
GEOPHYSICAL RESEARCH LETTERS
卷 33, 期 22, 页码 -出版社
AMER GEOPHYSICAL UNION
DOI: 10.1029/2006GL027147
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The viscosity of liquid Fe78S22 was measured up to 16 GPa and 1723 K using a high-speed CCD camera system ( 125 frames/s maximum). In order to prevent a chemical reaction between the sample and a Re viscosity marker sphere, the Re spheres were coated with alumina to a thickness of 1 - 2 mu m. The measured viscosity coefficients were 3.2 - 8.5 mPa-s and the activation volume was estimated to be 1.46 cm(3)/mol. The viscosity of liquid Fe86C14 was also measured up to 4.5 GPa and 1843 K. The viscosity coefficients were 3.8 - 6.3 mPa-s. There was no large difference in viscosity coefficient and activation volume between the Fe-S and Fe-C eutectic liquids in the range of measurement. Viscosities of Fe-S and Fe-C eutectic liquids are likely to remain low in the planetary interior.
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