Assertion: hafnium | /r/ObjectUse | used in reactor control rods
Facets:
value: because of its ability
type: CAUSE
Source sentences:
text: It is used in reactor control rods because of its ability to absorb neutrons.
text: Because the element not only has a good absorption cross section for thermal neutrons (almost 600 times that of zirconium), but also excellent mechanical properties and is extremely corrosion-resistant, hafnium is used for reactor control rods.