合成陨硫铁的扫描电镜观察

SEM study of synthetic troilite

利用扫描电镜观察了不同反应条件下合成出的陨硫铁的颗粒形态。结果发现不同反应条件下合成出的陨硫铁大部分呈浑圆状集合体 ,少量呈香蕉状。在陨硫铁颗粒的断面上还可以发现气孔。根据以上结果 ,本文对陨硫铁的成因进行了初步的探讨 。

Morphology of troilite particles synthesized under different conditions was studied with scanning electron microscope. The results showed that round shape is the major characteristic of troilite,although banana like particles are also found occasionally. The porosity resulting from diffusion of sulfur outward is found on the section of troilite particles as well as troilite clusters. Kinetics of troilite obtained by reaction of iron powder with pyrite is discussed based on the experimental results.