Investigation of C3S hydration mechanism by transmission electron microscope (TEM) with integrated Super‐XTM EDS system
Investigation of C3S hydration mechanism by transmission electron microscope (TEM) with integrated Super‐XTM EDS system
复制标题
DOI：
10.1111/jmi.12549
复制
发表时间：
2017-07
影响因子：
2
通讯作者：
Y. Sakalli;Reinhard Trettin
中科院分区：
文献类型：
--
作者：
Y. Sakalli;Reinhard Trettin
硅酸三钙（C3 S，Alite）是波特兰水泥熟料的主要成分。阿利特的水合作用对所得到的材料的性质具有决定性的影响。这是因为它在水泥中的含量很高。C_3S的水化机理非常复杂，至今尚未完全了解。存在以各种方式描述C3 S的水化的不同模型。为了更好地理解C3 S的水化机理，本文采用透射电子显微镜（TEM）对C3 S的水化进行了研究，并首次采用聚焦离子束从C3 S的烧结颗粒中制备了用于研究的样品。此外，还使用了带有集成Super‐X EDS系统的FEI Talos F200 x进行研究。FEI Talos F200 X将出色的高分辨率S/TEM和TEM成像与能量色散X射线光谱信号检测相结合，并将3D化学表征与成分映射相结合。
Tricalciumsilicate (C3S, Alite) is the major component of the Portland cement clinker. Hydration of Alite is decisive in influencing the properties of the resulting material. This is due to its high content in cement. The mechanism of the hydration of C3S is very complicated and not yet fully understood. There are different models describing the hydration of C3S in various ways. In this work for a better understanding of hydration mechanism, the hydrated C3S was investigated by using the transmission electron microscope (TEM) and for the first time, the samples for the investigations were prepared by using of focused ion beam from sintered pellets of C3S. Also, an FEI Talos F200x with an integrated Super‐X EDS system was used for the investigations. FEI Talos F200X combines outstanding high‐resolution S/TEM and TEM imaging with energy dispersive X‐ray spectroscopy signal detection, and 3D chemical characterization with compositional mapping.