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Segregation and second phase formation at free surfaces during irradiation

Description: From surface effects in controlled thermonuclear fusion devices and reactors meeting; Argonne, Illinois, USA (10 Jan 1974). Transmission electron microscopy examinations of a number of fcc and bcc metals and alloys irradiated either by heavy-ions or high energy electrons have shown that dynamic interactions of displacement damage with impurities and alloying elements lead to segregation and/or to the formation of second phases at internal surfaces such as voids. The phenomenon has been observed… more
Date: January 1, 1974
Creator: Okamoto, P.R.; Wiedersich, H. & Das, S.K.
Partner: UNT Libraries Government Documents Department
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Soil burial of radioisotopic fuel capsules

Description: From thirteenth international conference on thermal conductivity; Lake Ozark, Missouri, USA (5 Nov 1973). The safe burial in soil of a radioisotope heat source is an extremely complex problem, influenced by many parameters, including soil particle size, moisture content, weathering, density, inhomogeneities such as rocks and vegetation, soil disturbance upon impact, soil composition, and location on the earth. Precise descriptions of an accidental burial environment are in general impractical, … more
Date: April 30, 1974
Creator: McCulloch, W. H.
Partner: UNT Libraries Government Documents Department
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Plutonium metallography

Description: From international metallography society symposium on speciment preparation for metallography; Los Angeles, California, USA (23 Sep 1973). An evaluation of the effectiveness of plutonium metallography reveals inadequacies in electrolysis preparation techniques. The probable causes and the approaches to the problems that have been proposed by the participating laboratories over the past two decades are reviewed. A brief history of the metal is included. (auth)
Date: April 30, 1974
Creator: Cramer, E.M.
Partner: UNT Libraries Government Documents Department
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Analytical search for the stochastic-dominating process in the drift- deposition problem

Description: The random processes in the drift-deposition problem are examined separately to see if any one of them dominates the statistical properties of the outcome. The three prime candidates are assumed to be the drop size distribution, the distribution of break-away points, and turbulent diffusion. It is seen that the drop size distribution probably has dominant infiuence on the deposition of the large-size (drift or carry-over) drops. Turbulence has a comparable iniluence on the deposition of the sma… more
Date: January 1, 1974
Creator: Slinn, W.G.N.
Partner: UNT Libraries Government Documents Department
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