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Electroformation of Uranium Hemispherical Shells

Description: This effort was directed at developing an electrochemical process for forming uniform and dendrite-free deposits of uranium from molten salts. This process is to be used for the electroformation of free-standing hemispherical shells of uranium for nuclear applications.
Date: November 1989
Creator: Marshall, S. L.; Redey, L.; Vandegrift, G. F. & Vissers, D. R.
Partner: UNT Libraries Government Documents Department

MOLTEN SALT COMPOSITIONS

Description: A list of fused-salt mixtures which are of importance in molten salt research is presented. The list is a revision and extension of the list published in ORNL CF-57-6-81. The liquidus temperatures given are believed to be within lO C of the correct values. (auth)
Date: June 12, 1958
Creator: Blakely, J.P.
Partner: UNT Libraries Government Documents Department

Thermodynamic Considerations in Metal-Metal Salt Interactions

Description: BS>The free energies of interaction between isolated metal atoms and the molten chloride of taat metal were calculated from thermodynamic considerations. Based on the values of these standard free energies of interaction, metal-salt systems can be classified into two categories. First are those systems exhibiting relatively weak interaction energies (less than 30 kcal); these include primarily the monoand divalent metals. In the second group are solutions with relatively strong interaction energies (greater than 40 kcal); these consist of the transition metals and the metals that are normally trivalent. Solutions of the first category appear to consist of strongly-solvated atoms whereas several of the systems in the second group are known to undergo chemical reaction to form a soluble lower-valent cation species in the melt. This classification of metalsalt systems in terms of weak or strong interactions is considered more reasonable than that based on a nonquantitative property such as subhalide formation. For example, it is shown that the interaction energies of systems containing known solid subhalides, e.g., Hg-- HgCl/sub 2/ and Bi- BiCl/sub 3/, are no larger and in many cases much less than those for other systems with no known subhalide. (auth)
Date: January 1, 1963
Creator: Topol, L. E.
Partner: UNT Libraries Government Documents Department

The Electrochemical Properties of the Mercury/lithium Nitrate-potassium Nitrate Eutectic Interface

Description: The original purpose of this investigation was to attempt to apply the coulostatic method directly to a molten salt system. The inability to duplicate the reported capacity data for this system resulted in an investigation of the probable cause of this discrepancy between the data obtained by these different methods (14, 15).
Date: August 1968
Creator: Flinn, David R.
Partner: UNT Libraries

Self-diffusion of Pb210 and Cl36 in Molten PbCl2-KCl Mixtures in the Region of the Compound 2PbCl2-KCl

Description: The specific goal of the investigation was the measurement, as a function of temperature, of the self-diffusion coefficients of Pb210 and Cl36 in PbCl2-KCl compositions in the region of the first compound, and to calculate from these data the activation energy necessary for the diffusion of these ions.
Date: June 1960
Creator: Tidwell, Troy Haskell
Partner: UNT Libraries

MOLTEN SALTS FOR CIVILIAN POWER

Description: Molten salts provide the basis of a new family of liquid fuel power reactors. The range of solubility of uranium and thorium compounds makes the system flexible, and allows the consideration of a variety of reactors. Suitable salt mixtures have meltirg points in the 85O to 95O deg F range and will probably prove to be sufficiently compatible with known alloys and to provide lorg-lived components, if the temperature is kept below 13OO deg F. Thus the salt systems naturally tend to operate in a temperature region suitable for modern steam plants and achieve these temperatures in unpressurized systems. Some economic and other considerations are made. (T.R.H.)
Date: October 10, 1957
Creator: McPherson, H.G.
Partner: UNT Libraries Government Documents Department

THERMODYNAMICS IN THE FUSED SALT DISSOLUTION PROCESS FOR ZIRCONIUM FUEL

Description: A discussion is given of the role of thermodynamics in the fused-salt volatility process, particularly as it applies to oxidation-reduction reactions affecting zirconium, uranium, nickel, chromium, ruthenium, and other elements present in the hydrofluorination head-end step. (auth)
Date: November 19, 1959
Creator: Cathers, G.I.
Partner: UNT Libraries Government Documents Department

SUMMARY OF HIGH TEMPERATURE LIQUID METAL, FUSED SALT PUMP DEVELOPMENT WORK IN THE ORNL-ANP PROJECT FOR THE PERIOD JULY 1950-JANUARY 1954

Description: All of the information available on high-temperature pumps originally reported in the ANF quarterly reports is summarized. The development program was more of a seal development than a specific pump program. Frozen seals of various kinds were tried and for many commercial applications would be perfectly satisfactory. For application in a system such as the ARE, operation of the frozen seal puunp is questionable. A gas-sealed pump was developed and is expected to be entirely adequate for a system like the ARE. (W.L.H.)
Date: August 1, 1954
Creator: Farris, E.S. comp.
Partner: UNT Libraries Government Documents Department

AN INVESTIGATION OF ThF$sub 4$-FUSED SALT SOLUTIONS FOR HOMOGENEOUS BREEDER REACTORS

Description: A consideration of the characteristics of fused salt-- ThF/sub 4/ solutions suitable for use in homogeneous reactors is presented, together with a brief survey of the literature pertaining to such solutions and a summary of the experimental work accomplished. (auth)
Date: July 19, 1951
Creator: Blomeke, J.O.
Partner: UNT Libraries Government Documents Department

VIBRATIONAL SPECTRA OF MOLTEN SALTS

Description: Vibrational spectra provide one of the most direct methods for the study of composition and structure of simple covalently bound species. In molten salts, where the presence of complex ionic species is debated, the application of the powerful techniques of infrared and Raman spectroscopy was hampered by severe experimental difficulty. The literature from 1925 to the present time is reviewed, and unusual aspects of experimental techniques as well as tue results obtained are covered. The discussion is limited to ionic salts except where the spectra of molecular liquids make a direct contribution to the understanding of related ionic liquids. Literature references number 62. (auth)
Date: July 26, 1963
Creator: James, D.W.
Partner: UNT Libraries Government Documents Department