Oak Ridge National Laboratory (ORNL) has successfully tested a 3D printed specimen capsule in its High Flux Isotope Reactor. The capsule, known in the industry as a rabbit capsule, was designed and manufactured using a laser powder bed printer with stainless steel materials. This marks the first time an additively manufactured component of this type has been qualified for reactor use. Image Credit: Oak Ridge National Laboratory The specimen capsule underwent nearly a month of testing inside the High Flux Isotope Reactor, where it demonstrated its ability to withstand the reactor’s high neutron flux environment. These capsules play an essential role in nuclear fuels and materials research by containing experiments during irradiation testing. “This is a significant step toward demonstrating that additive manufacturing can be used to develop and qualify specialized components that cannot be conventionally machined,” said Richard Howard, group lead for irradiation engineering at ORNL. The technology offers… read more