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Liquidus Temperature Data for DWPF Glass

Description: This report provides new liquidus temperature (T<sub>L</sub>) versus composition data that can be used to reduce uncertainty in T<sub>L</sub> calculation for DWPF glass. According to the test plan and test matrix design PNNL has measured T<sub>L</sub> for 53 glasses within and just outside of the current DWPF processing composition window. The T<sub>L</sub> database generated under this task will directly support developing and enhancing the current T<sub>L</sub> process-control model. Preliminary calculations have shown a high probability of increasing HLW loading in glass produced at the SRS and Hanford. This increase in waste loading will decrease the lifecycle tank cleanup costs by decreasing process time and the volume of waste glass produced.
Date: May 21, 1999
Creator: Piepel, GF; Vienna, JD; Crum, JV; Mika, M & Hrma, P
Partner: UNT Libraries Government Documents Department

Practical superconductor development for electrical power applications - annual report for FY 2003.

Description: Most large-scale applications of high-critical-temperature superconductors will require conductors that can carry large currents in the presence of applied magnetic fields. This report describes progress at Argonne National Laboratory (ANL) in the research and development of practical superconducting components and devices. These efforts primarily focus on the use of Y-Ba-Cu-O system in second-generation conductors, but they also include investigations of Bi-Pb-Sr-Ca-Cu-O systems for use in first-generation conductors. Results are presented in the areas of processing first-generation superconductors and second-generation (2G) superconductors with several different architectures, applying Raman microscopy to the characterization of 2G conductors, studying the role of oxygen doping in the grain boundary transport of 2G conductors, and evaluating the mechanical properties of 2G conductors.
Date: October 18, 2004
Creator: Balachandran, U.; Baurceanu, R.; Clauss, H.; Dorris, S. E.; Emerson, J. E.; Erck, R. A et al.
Partner: UNT Libraries Government Documents Department