Aluminides

Part of speech: noun

Definitions

1. A class of chemical compounds typically formed between aluminum and metals, which display distinct properties relevant in various alloys
2. Compounds resulting from a reaction with aluminum and different elements, often vital in enhancing material performance
3. Substances created by the combination of aluminum with certain metals, known for their utility in industrial applications and research

Etymology: "Aluminides" is the plural of "aluminide," a chemical term built from "aluminium" and the suffix "-ide." That suffix is the familiar chemistry marker for a compound of two elements, as in "oxide" or "chloride," and it is what turns the metal's name into a label for a family of compounds. The metal itself has a longer and more tangled name history than the suffix. It descends from Latin "alumen," meaning alum, the astringent mineral salt used in dyeing and tanning. English speakers first called the metal "alumium," and the spelling "aluminium" was settled in the nineteenth century, with the "-ium" ending borrowed from the pattern used for other newly isolated elements. Because "aluminide" follows the chemical naming pattern, it is a technical coinage rather than an old word, and its use is confined to materials science and metallurgy, where it names intermetallic compounds formed when aluminium combines with a metal such as nickel or titanium.