Both carbon and silicon expose a lot of metallic properties like metallic lustre, electrical and heat conductivity, etc, so often considered metalloids. The both form alloys with other metals such as iron.
On the other hand, the usual silicon carbide is not an alloy at all. It is tranparent, electrical insulator etc.
I wonder whether there is a different carbon-silicon compound that has more metallic properties?
Carbon (graphite):
Silicon:
Silicon carbide: