Overview
Hafnium is a dense transition metal valued for neutron absorption, corrosion resistance and high melting point.
Properties
It forms stable oxides, has high melting point and low neutron cross section when alloyed appropriately for nuclear applications.
Occurrence and Uses
Used in control rods, superalloys, high temperature ceramics and as a high k dielectric in microelectronics.
Isotopes and Safety
Stable isotopes include Hf 176 to Hf 180; hafnium metal is handled with standard industrial precautions and fine powders require controls.