Korroosoi

Korroosoi is a fictional crystalline alloy described in science fiction and world-building. It is valued for high energy density, structural stability, and strong corrosion resistance, and the name is used across settings to denote a material with advanced performance.

Its described properties include a hard, dense lattice, a wide electrochemical window, and a high melting point. In many depictions, korroosoi is lightweight for its strength and resists oxidation and salt erosion better than conventional alloys.

Locations vary by story but often include deep mantle-like deposits, asteroid regolith, or meteorite fragments. Extraction requires high-temperature processing in inert atmospheres, followed by purification. Refined korroosoi ingots or powders feed manufacturing in these worlds.

Applications include energy storage devices with high capacity and long cycle life, and aerospace or marine components that endure extreme temperatures. It is also used for protective coatings and, in some works, superconducting cables or compact power cells.

Etymology combines a fictional root korro- with a built language suffix, usually interpreted as meaning enduring or sealed. The concept spread through speculative writers and role-playing games, and it is often used to explore themes of resource scarcity and technological resilience.

Because korroosoi is fictional, there is no real-world material by this name. It functions as a narrative device to discuss advanced materials and their societal implications.