Chemical Engineering Division. Liquid metals chemistry and tritium control technology annual report, July 1974--June 1975
A program is in progress to develop the capabilities for monitoring hydrogen and tritium in LMFBR sodium and cover gas and to develop means of control of tritium in sodium. Both the in-sodium and cover-gas tritium monitors are similar in design to the hydrogen monitors. The in-sodium tritium monitors were tested for response to changes in tritium level in sodium. A cover-gas tritium monitor was designed for testing and further development. Final results of tensimetric studies of the Li--LiD system are reported. Comparison of the Li-- LiD data with previous results for the Li--LiH system shows that the isotope effects in these systems originate largely from the gas phase. The solubility of hydrogen in $beta$-phase Li--Al alloy was found to be significantly lower than that in pure lithium at comparable temperatures and equilibrium hydrogen pressures. Decomposition pressure data, together with previously measured solubilities of Li$sub 3$N in liquid lithium, were used to determine (1) the equilibrium constant for the formation of Li$sub 3$N/sub (s)/ from liquid lithium and gaseous nitrogen, (2) the free energy of formation of solid Li$sub 3$N, and (3) the Sieverts' law constant for dilute solutions of Li$sub 3$N in liquid lithium. Hydrogen permeation characteristics of multiplex metal laminates indicate that these materials may be of potential utility as barriers to tritium migration. Studies of the kinetics of chemical trapping reactions involving tritium in inert gas streams are reported. Progress in the assessment of tritium handling and containment requirements for a tokamak experimental fusion power reactor (TEPR) is reported. (JGB)
- Research Organization:
- Argonne National Lab., Ill. (USA)
- DOE Contract Number:
- W-31-109-ENG-38
- NSA Number:
- NSA-33-007002
- OSTI ID:
- 4156233
- Report Number(s):
- ANL-75-50
- Resource Relation:
- Other Information: Orig. Receipt Date: 30-JUN-76
- Country of Publication:
- United States
- Language:
- English
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Related Subjects
400702* -Chemistry-Radiochemistry & Nuclear Chemistry- Properties of Radioactive Materials
ALUMINIUM ALLOYS- - HYDROGEN- LITHIUM ALLOYS- SOLUBILITY- SOLVENT PROPERTIES
COMPARATIVE EVALUATIONS- DEUTERIDES- DEUTERIUM- GASES- HYDROGEN- ISOTOPE EFFECTS- LIQUID METALS- LITHIUM- LITHIUM COMPOUNDS- LITHIUM HYDRIDES- THERMODYNAMIC PROPERTIES
COVER GAS- HYDROGEN- MONITORING- PERFORMANCE TESTING- REACTOR CONTROL SYSTEMS- SODIUM- TRITIUM
LMFBR TYPE REACTORS
RESEARCH PROGRAMS COPPER- DIFFUSION- HYDROGEN- LITHIUM NITRIDES- NIOBIUM- PERMEABILITY- STAINLESS STEELS- THERMODYNAMIC PROPERTIES- THERMONUCLEAR REACTORS