Zirconium

Zirconium is a metal used in reactor claddingCladdingCladding is the thin walled metal tube that composes the outside of a fuel rod. It's purpose is to prevent corrosion of the fuel by the coolant & release of fission contents into the coolant. Although Zirconium alloy is common, aluminum and stainless steel is also used. Cladding Types Zirconium alloy has been used for so long due to it's properties being very good for nuclear reactors. * New research suggests that there is an alternative - SiGA cladding. This cladding is made from silicon car

Zirconium has excellent heat transfer properties and allows for efficient heat transfer. However, it has a negative reaction called Zircaloy hydriding, where zirconium and hydrogen combine for form zirconium hydride, embrittling reactor cladding and resulting in perforations.