Hafnium oxide is the inorganic compound of formula HfO2. Also known as hafnia, this colorless solid is one of the most common and stable compounds of hafnium. It is an electrical isolator with a band gap of 5.3 ~ 5.7 eV. Hafnium dioxide is an intermediate in some processes that give hafnium metal. Hafnium oxide […]
Hafnium occurs in zirconium ores. Because this metal must be removed from “reactor grade” zirconium, the production of hafnium is largely dependent on zirconium production, as discussed later. Its melting point is 4032 F. However, it has not been available in sufficiently large quantities to have any extensive elevated-temperature applications other than in control rods […]
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