Author: William M. AlbrechtPublisher:
ISBN:
Category : Chemical kinetics
Languages : en
Pages : 20
Book Description
The Reaction of Hydrogen with Uranium Alloy Types
Author: William M. AlbrechtPublisher:
ISBN:
Category : Chemical kinetics
Languages : en
Pages : 20
Book Description
The reaction of hydrogen with uranium-molybdenum alloys
Author: Dennis Henry RouvrayThe Reaction of Hydrogen with Zirconium-1 and -25 W/o Uranium Alloys
Author: Harold E. BigonyPublisher:
ISBN:
Category : Chemical kinetics
Languages : en
Pages : 34
Book Description
Study of the Kinetics of the Reaction Between Uranium, H2, HD and D2
Author: Harry John SvecPublisher:
ISBN:
Category : Chemical kinetics
Languages : en
Pages : 36
Book Description
The kinetics of the reactions between uranium metal, H2, HD and D2 have been examined. There is strong evidence that the reaction involves several steps of which activated adsorption of the gas by the metal is the rate governing process. Rate constants have been determined for the over-all processes in the temperature range 27.5 deg to 75 deg C. Energies of activation which are of reasonable magnitude have been calculated being 10,200 calories for the process involving D2, 8,500 calories for the process involving HD and 8,200 calories for the process involving H2. From a consideration of the zero point energies for these three molecular species of hydrogen, these results follow in the right order. However because of the adsorption step and since it is not possible to determine the heat of adsorption it is impossible to state that the observed activation energies are the true activation energies. Since the heat of adsorption during the process must be considered in the final interpretation of the results, the true activation energies are probably less positive than those observed. The adsorption step in the processes also accounts for the fact that the ratios of the rates of the reactions, which may be expected to differ inversely as the square roots of the reduced masses of the gas molecules, deviate somewhat from the theoretical values. Heterogeneous reactions such as those reported by this thesis do not lend themselves readily to kinetics experiments. Because of the reactivity of the uranium-hydrogen system it was not possible to determine to what extent the heat of adsorption enters into the values obtained for the observed activation energies. However other metal-hydrogen systems which do not interact so rapidly should better lend themselves to studies of this nature.
Uranium Hydride
Author: The Reaction of Hydrogen with a 50 Weight Percent Alloy of Uranium and Zirconium Between 542 C and 798 C. Research Report 100FF1010-R1
Author: Publisher:
ISBN:
Category :
Languages : en
Pages :
Book Description
Hydrogen sorption isotherms have been measured between 542 and 798 deg C at pressures of 0.001 to 70 cm of Hg. The isotherms give the terminal solubility of S in the initial alloy phases and the limiting compositions of new phases containing H/sub 2/. Values for the heat of solution of H/sub 2/ at all concentrations are presented. A comparison of the data with that of the H-- Zr system indicates that, above a minimum H/sub 2/concentration, the alloy breaks down to give V and Zr. The alloy then behaves, to some extent, as the H--Zr system modified by the presence of U. X-ray diffraction studies give support to this interpretation (auth).
The Formation of Uranium Hydride
Author: J. E. BurkeUranium: Alloys and compounds. 1936-1958
Author: United States Dept. of Commerce. Office of Technical ServicesPublisher:
ISBN:
Category : Uranium
Languages : en
Pages : 16
Book Description
Nuclear Science and Technology, a Selective Bibliography
Author: U.S. Atomic Energy CommissionPublisher:
ISBN:
Category : Nuclear engineering
Languages : en
Pages : 252
Book Description
Uranium Production Technology
Author: Charles D. HarringtonPublisher:
ISBN:
Category : Nuclear fuels
Languages : en
Pages : 600
Book Description