An alloy of iron and silicon used in the production of carbon steel.

硅铁一种用于生产碳素钢的铁和硅的合金。

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The pressure oxidative leaching of copper slag with high iron and silicon content was studied systematically.

对火法炼铅产高硅高铁含铜渣进行了氧压硫酸浸出过程研究。

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This study is not only a breakthrough the bottleneck of silica gel formation and pulp filtration, but also a good removal iron and silicon completely, and a filterable cake is obtained.

本研究突破了在高硅铜冶渣湿法浸出回收有价金属过程中容易形成硅胶所造成难过滤的瓶颈；

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Their results suggest 55 Cancri e is largely composed of carbon (in the form of graphite and diamond), iron, silicon carbide, and, potentially, silicates.

BBC: Oddballs: The strange worlds beyond our Solar System

This will map for the first time iron, magnesium, aluminium and silicon over the moon's entire surface.

ECONOMIST: Astronomy

Japanese researchers say the basalt in NWA 011 suggests the body from which it did originate had a core of molten iron with an outer covering of silicon and aluminium that formed a basaltic crust.

BBC: Mercury meteorite puzzle