Application of x-ray radiography to study the segregation process of iron from silicate under high pressure and high temperature.
Application of x-ray radiography to study the segregation process of iron from silicate under high pressure and high temperature.
复制标题
应用X射线照相研究高压高温下铁从硅酸盐中的偏析过程。
DOI：
10.1080/08957959.2015.1028932
复制
发表时间：
2015
影响因子：
2
通讯作者：
R. Iizuka and A. Suzuki
中科院分区：
文献类型：
--
作者：
H. Gotou;T. Yagi;R. Iizuka and A. Suzuki
本文用X射线照相法观察了在高温高压条件下含轻元素的混合物中铁从硅酸盐中的分凝过程。随着含氢样品温度的升高，铁水变得凝聚。小的铁液滴沉到腔室的底部，在那里它们合并成一个单一的大液滴。小铁滴呈现复杂的运动，在随机方向上移动。在含硫样品中发现明显不同的行为，其中没有观察到熔融铁的明显运动。相反，随着样品温度的升高，样品室壁附近的铁浓度逐渐增加。这些观察结果表明，铁水的行为根据溶解的元素而变化。这种X射线照相实验代表了一种强大的技术来研究熔融铁从固体或部分熔融的硅酸盐中分离的过程，特别是当与高分辨率层析成像技术相结合时。
X-ray radiography was applied to observe the segregation process of iron from silicate at high pressure and high temperature in mixtures containing light elements. As the temperature of the hydrogen-containing sample increases, the molten iron becomes coherent. Small droplets of iron sink to the bottom of the chamber, where they merge into a single, large droplet. The small iron droplets exhibit complex motion, moving in random directions. Markedly different behavior is found in the sulfur-containing sample, where no clear motion of the molten iron is observed. Instead, as the sample temperature is increased, the concentration of iron near the wall of the sample chamber gradually increases. These observations demonstrate that the behavior of molten iron changes according to the dissolved elements. This X-ray radiography experiment represents a powerful technique to study the segregation process of molten iron from solid or partially molten silicate, particularly when combined with high-resolution tomography techniques.