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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.
Yuji Inagaki et al.
Fusion Science and Technology | Volume 56 | Number 2 | August 2009 | Pages 821-825
Tritium Breeding | Eighteenth Topical Meeting on the Technology of Fusion Energy (Part 2) | doi.org/10.13182/FST09-A9011
Articles are hosted by Taylor and Francis Online.
Deuterium ion implantation experiments into Li2TiO3 and TiO2 were performed with various ion fluences to elucidate the role of lithium on deuterium retention behavior in Li2TiO3. The experimental results showed that there were four deuterium trapping states in TiO2; two of them were interacted near the surface and the others were deuterium trapped by E'-center and bound to oxygen with forming TiO-D bond in bulk. For Li2TiO3, there were five trapping states; four of them were the same as those in TiO2 and the other was that bound to oxygen with forming LiO-D bond. The implanted deuterium was preferentially trapped by E'-center with forming hydroxide. LiOD phase was formed as increasing ion fluence. The retention of deuterium trapped by E'-center for Li2TiO3 was less than that for TiO2, indicating that the migration of lithium via irradiation defects during implantation refrains the deuterium retention in Li2TiO3.
