Ceramite

Ceramite is a fictional material of the Warhammer 40,000 universe, used by the Imperium of Man. It is a composite made from Ceramic and Titanium.

Power Armour (but not most suits of Terminator Armor) is made from it, and vehicles making orbital drops (like Thunderhawks, Stormravens, Storm Eagles, and Stormtalons) are often plated with ceramite tiles to protect them from the heat of re-entry. This ceramite plating has the effect of protecting such vehicles from the extra armor-penetrating ability of melta weapons. The Land Raider Achilles was built with ceramite plating for just such a reason.

There are many grades of ceramite with the higher grades being produced solely by the Adeptus Mechanicus to manufacture more expensive forms of armour (e.g the power armour of the space marines or the ceramite plates of Baneblades). Mid quality ceramite is the most mass produced and is used in the construction of large buildings, starships and lightly armoured vehicles. The lowest quality (usually watered down forms of recycled higher grades) is the only grade not used to build weapons and is used to form base frames for smaller buildings or the construction of Hive Cities.

There's ceramite in the real world too which bears some similarity to the fictional stuff. It's a high grade ceramic material used in furnaces and chemical plants because it's checked out for over 1400 degrees of heat resistance. It's not quite as baller as the far future stuff, but still. Pretty cool. Get your ceramite here! (Except not, because Ceramite is supposed to be made from metallic compounds.)