Cagnium

Cagnium is a very strong carbon alloy that does not corrode, is a very good isolator and is simply incredibly strong and durable. Originially it was known as NanoCrystalline Graphene Alloy (NCGA) but this was later changed to CAGNium so it could be more easily pronounced. This later changed to simply cagnium.

Cagnium consists of 1 atom thick layers of carbon, graphene, that are bound together by nanocrystalline structures. There's a great variety of different nanocrystalline types that can be used and these greatly influence the properties of the cagnium. This way there is a great range of specialized cagnium alloys. The idea of using nanocrystalline structures to keep graphene layers from merging together to graphite was pioneered by Materium Industries.

Types
Cagnium type Standard Cagnium type Transparant
 * Cagnium-1: Cagnium-1 was the first type of standard Cagnium using graphene and carbon nanocrystals.
 * Cagnium-2: Cagnium-2 is stronger and slightly lighter than Cagnium-1 as it consists of a double layer of graphene that are simply structured apart and between these double layers there are more structured nanocrystals.
 * Cagnium-3: Cagnium-3 is stronger and slightly lighter than Cagnium-2 and uses a triple layer of graphene. It uses the same nanocrystals as Cagnium-2.

Cagnium type Extra Hard

Cagnium type Conductive

23rd century
Originially introduced for the price of 39 GC/kg in 2257. Price rapidly declined as graphene production became easier and nanocrystals became cheaper. Cagnium-1 was 8 GC/kg at the end of the century.

24th century
Cagnium-2 was introduced at the beginning of the 24th century and was introduced at 10 GC/kg (to 7 GC/kg for Cagnium-1). The price was only slightly higher than Cagnium-1 and it quickly became the no. 1 choice. At the end of the century the price was only 3 GC/kg.

25th century
At the beginning of the 25th century Cagnium-3 was introduced at 4 GC/kg and soon it was prefered over Cagnium-2. Its price dropped below 1 GC/kg in 2542.