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Latest News
Colin Judge: Testing structural materials in Idaho’s newest hot cell facility
Idaho National Laboratory’s newest facility—the Sample Preparation Laboratory (SPL)—sits across the road from the Hot Fuel Examination Facility (HFEF), which started operating in 1975. SPL will host the first new hot cells at INL’s Materials and Fuels Complex (MFC) in 50 years, giving INL researchers and partners new flexibility to test the structural properties of irradiated materials fresh from the Advanced Test Reactor (ATR) or from a partner’s facility.
Materials meant to withstand extreme conditions in fission or fusion power plants must be tested under similar conditions and pushed past their breaking points so performance and limitations can be understood and improved. Once irradiated, materials samples can be cut down to size in SPL and packaged for testing in other facilities at INL or other national laboratories, commercial labs, or universities. But they can also be subjected to extreme thermal or corrosive conditions and mechanical testing right in SPL, explains Colin Judge, who, as INL’s division director for nuclear materials performance, oversees SPL and other facilities at the MFC.
SPL won’t go “hot” until January 2026, but Judge spoke with NN staff writer Susan Gallier about its capabilities as his team was moving instruments into the new facility.
B. Tsuchiya et al.
Fusion Science and Technology | Volume 47 | Number 4 | May 2005 | Pages 891-894
Technical Paper | Fusion Energy - Fusion Materials | doi.org/10.13182/FST05-A800
Articles are hosted by Taylor and Francis Online.
Radiation induced change in electrical conductivity of proton conductive ceramics (Yb-doped SrCeO3) have been investigated under 14 MeV fast neutrons in air at temperatures of 293 and 373 K. It was found that the electrical conductivity under neutron irradiation at 293 and 373 K gradually decreased with increased neutron fluence reaching a constant for neutron fluences above 2.0 × 1018 and 1.0 × 1017 n/m2, respectively. The decrease of the electrical conductivity may be associated with annihilation of sub-bands due to Ce4+ to Ce3+ conversion.