Three-dimensional coherent x-ray diffraction imaging of molten iron in mantle olivine at nanoscale resolution.
نویسندگان
چکیده
We report quantitative 3D coherent x-ray diffraction imaging of a molten Fe-rich alloy and crystalline olivine sample, synthesized at 6 GPa and 1800 °C, with nanoscale resolution. The 3D mass density map is determined and the 3D distribution of the Fe-rich and Fe-S phases in the olivine-Fe-S sample is observed. Our results indicate that the Fe-rich melt exhibits varied 3D shapes and sizes in the olivine matrix. This work has potential for not only improving our understanding of the complex interactions between Fe-rich core-forming melts and mantle silicate phases but also paves the way for quantitative 3D imaging of materials at nanoscale resolution under extreme pressures and temperatures.
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ورودعنوان ژورنال:
- Physical review letters
دوره 110 20 شماره
صفحات -
تاریخ انتشار 2013