Assertion: hafnium | /r/HasProperty | applicable
Facets:
value: as pure metal
type: OTHER
Source sentences:
text: A good absorber of neutrons, Hf is applicable in making control rods of nuclear reactors such as those used in nuclear submarines  .
text: First, the close similarity between hafnium and zirconium makes it possible to use zirconium for most of the applications; second, hafnium was first available as pure metal after the use in the nuclear industry for hafnium-free zirconium in the late 1950s.