what products contain hafnium?
<answer> Hafnium produced is used in the production of control rods for nuclear reactors. <context> Best Answer: Hafnium is a chemical element with the symbol Hf and atomic number 72. A lustrous, silvery gray, tetravalent transition metal, hafnium chemically resembles zirconium and is found in zirconium minerals... Hafnium is used in filaments and electrodes. Some semiconductor fabrication processes use its oxide for integrated circuits at 45 nm and smaller feature lengths. Some superalloys used for special applications contain hafnium in combination with niobium, titanium, or tungsten... Hafnium's large neutron capture cross-section makes hafnium a good material for neutron absorption in control rods in nuclear power plants. Most of the hafnium produced is used in the production of control rods for nuclear reactors....