Silicon is a semi-metal and therefore a semiconductor and the second most common element on earth. The development of transistor technology, integrated circuits and solar technology would be impossible without it.
|Rust resistance||no bearing||0|
|Yield strength||Improvement||+ 2|
|Heat resistance||Improvement||+ 1|
|Carbide formation||Decrease||- 1|
|Wear resistance||Decrease||- 3|
|Reduction of area||no bearing||0|
|Notched Impact Strength||Decrease||- 1|
On the moon there is a disc of silicon on which messages from over 70 heads of state have been engraved. This disk was brought to the moon by Neil Armstrong and Buzz Aldrin during the Apollo 11 mission. Unlike other materials, silicon can withstand the enormous temperature swings on Earth's satellite.
Aluminium can be formed and machined extremely well. It is particularly suitable for lightweight constructions.Read more
Here you can find out why aluminium was discovered so late and how aluminium can be produced.Read more
The carbon concentration influences the hardness of steels. In this way, the right steel can be found for every application.Read more