NASA Scientific and Technical Aerospace Reports

zone permeability. Two full-scale PRBs were evaluated in this study: the U. S. Coast Guard Support Center PRB located near
Elizabeth City, North Carolina, and the Denver Federal Center PRB in Lakewood, Colorado. Detailed water sampling and
analysis, core sampling, and solid-phase characterization studies were carried out to: evaluate spatial and temporal trends in
contaminant concentrations and key geochemical parameters; characterize the type and nature of surface precipitates forming
over time in the reactive barriers; and, identify the type and extent of microbiological activity within and around the reactive
barriers.
NTIS
Ground Water; Water Treatment
20040071063 Oak Ridge National Lab., TN, USA
Corrosion Test Results for Inconel 600 vs Inconel-Stainless UG Bellows
Osborne, P. E.; Icenhour, A. S.; Del Cul, G. D.; Aug. 2002; In English
Report No.(s): DE2003-814069; ORNL/TM-2002/136; No Copyright; Avail: National Technical Information Service (NTIS)
The Conversion Project (CP) of the Molten Salt Reactor Experiment at Oak Ridge National Laboratory (ORNL) involves
converting slightly less than 40 kg of (sup 233)U to a stable form for safe storage. The operation is performed within a few
vessels interconnected by valves and 1/2-inch metal tubing. During this conversion, a particularly toxic and corrosive
by-product is formed, namely aqueous hydrofluoric acid (HF). The production of HF is a result of the hydrolysis of UF(sub
6) and subsequent steam treatments of UO(sub 2)F(sub 2). For each mole of UF(sub 6) converted, 6 mole of HF are produced.
The HF that forms during conversion combines with water to produce approximately 1.5 L of 33 wt% HF. As this mixture
is transferred within the process system, the tubing and valves are exposed to high concentrations of HF in liquid and vapor
form.
NTIS
Bellows; Corrosion Tests; Inconel (Trademark); Stainless Steels; Fabrication
20040071067 Lockheed Martin Corp., Syracuse, NY, USA
Modelling Mixed Bed Ion Exchange Kinetics for Removal of Trace Levels of Divalent Cations in Ultrapure Water
Widman, B.; Jan. 2003; 14 pp.; In English
Report No.(s): DE2004-822270; LM-03K097; No Copyright; Avail: Department of Energy Information Bridge
Ion exchanger resin fluid film mass transfer coefficients and the ionic diffusivities from which they are derived are often
measured by use of ion exchange resin columns. Such tests, usually run dynamically using short resin beds, are often
performed using relatively high (ppm) concentrations of ions to accurately measure output concentrations as a function of flow
rate.
NTIS
Cations; Ion Exchange Resins; Kinetics; Ammonia
20040071142 NASA Glenn Research Center, Cleveland, OH, USA
[Synthesis and Characterization of a Sugar Based Electrolyte for Thin-film Polymer Batteries]
[1998]; 2 pp.; In English
Contract(s)/Grant(s): NCC3-883; No Copyright; Avail: CASI; A01, Hardcopy
The work performed during the current renewal period, March 1,1998 focused primarily on the synthesis and
characterization of a sugar based electrolyte for thin-film polymer batteries. The initial phase of the project involved
developing a suitable sugar to use as the monomer in the polymeric electrolyte synthesis. The monomer has been synthesized
and characterized completely. Overall the yield of this material is high and it can be produced in relatively large quantity easily
and in high purity. The scheme used for the preparation of the monomer is outlined along with pertinent yields.
Derived from text
Electrolytes; Sugars; Thin Films; Polymers; Synthesis (Chemistry); Electric Batteries
20040073501 NASA Marshall Space Flight Center, Huntsville, AL, USA
Structural Fluctuation and Thermophysical Properties of Molten II-VI Compounds
Biological and Physical Space Research Laboratory 2002 Science Review; December 2003, pp. 22; In English; See also
20040073490; No Copyright; Abstract Only; Available from CASI only as part of the entire parent document
The objectives of the project is to conduct ground-based experimental and theoretical research on the structural
fluctuations and thermophysical properties of molten II-VI compounds to enhance the basic understanding of the existing flight
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