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Large scale breeder reactor plant prototype mechanical pump conceptual design study

Description: This report includes engineering memorandums, drawings, key feature descriptions, and other data. Some of the reports, such as manufacturability and some stress analysis, were done by consultants for Byron Jackson. Review of this report indicates that the design is feasible. The pump can be manufactured to system and specification requirements. The overall length and weight of some pieces will require special consideration, but is within the scope of equipment and technology available today. Th… more
Date: July 1, 1976
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Large scale breeder reactor plant prototype mechanical pump conceptual design study

Description: This final report is a complete conceptual design study of a mechanical pump for a large scale breeder reactor plant. The pumps are located in the cold leg side of the loops. This makes the net positive suction head available - NPSHA - low, and is, in fact, a major influencing factor in the design. Where possible, experience gained from the Clinch River Project and the FFTF is used in this study. Experience gained in the design, manufacturer, and testing of pumps in general and sodium pumps in … more
Date: July 1, 1976
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Temperature Distributions in Electron Beam Welding Cavities

Description: Surface temperatures in electron beam welding cavities in stainless steel 304 and aluminum 1100, 2024, and 6061 were measured with a narrow band infrared radiation pyrometer. A special device was designed for mounting the radiation-sensing probe next to the electron beam gun in the welding chamber. This mounting device included a mechanism for oscillating the probe so as to scan the cavity region both perpendicular and parallel to the welding direction. At the center of its movement the probe v… more
Date: July 15, 1976
Creator: Shintaku, S. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Thermodynamics of the conversion of plutonium dioxide to plutonium monocarbide

Description: The present study contains an equilibrium thermodynamic analysis of the Pu--C--O system and a discussion from an equilibrium thermodynamic point of view of the direct carbothermic reduction and two-step carbothermic-hydrogen reduction of PuO/sub 2/ to PuC/sub 1-x/. Included are considerations of the partial pressures of the various species in the Pu--C--O and Pu--C--H systems, the process parameters required for conversion of the oxide to the carbide, and the loss of plutonium due to vapor spec… more
Date: July 1, 1976
Creator: Besmann, T. M. & Lindemer, T. B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Thin beryllium structures by powder metallurgy

Description: A process was developed for fabricating thin-wall beryllium shapes. The procedure includes plasma spraying a beryllium structure containing homogeneously dispersed silicon grains, removing any undesirable volatile substances from the structure, and sintering the plasma-sprayed structure within a sizing die system in a controlled atmosphere at optimum pressure and temperature.
Date: July 1, 1976
Creator: Northcutt, Jr., W. G. & Hovis, Jr., V. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Development of methods and procedures for high rate low energy expenditure fabrication of solar cells. Quarterly progress report No. 3

Description: Solar cells are being fabricated by ion implantation and pulsed electron beam techniques which eliminate much of the complexity and energy consumption associated with conventional processing methods. Development continues to progress toward achievement of program objectives.
Date: July 1, 1976
Creator: Kirkpatrick, A. R. & Minnucci, J. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Holographic determination of the yield strength of a welded stainless steel pressure vessel

Description: The strength and toughness of a high energy rate formed (HERF'ed) stainless steel, as influenced by the heat input from a variety of welds, are being measured. Using holographic interferometry, a welded spherical pressure vessel constructed from HERF'ed stainless steel with a composition of 21 percent Cr, 6 percent Ni, 9 percent Mn, 0.23 percent N, balance Fe was examined. Holographic examination of the weld vicinity shows that plastic deformations in the heat affected zones reach a maximum at … more
Date: July 14, 1976
Creator: Meyer, M. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Pacific Northwest Laboratory quarterly report to ERDA Nuclear Research and Applications Division for April--June 1976. [WESF-produced /sup 90/SrF/sub 2/ and /sup 137/CsCl]

Description: The long-term compatibility tests are continuing as scheduled. The first set of test couples (1000-hr exposure) were removed from the furnaces and sectioned. Analysis of the test specimens is now underway. Metallographic examination of the nonradioactive specimens has been completed, and evaluation of the micrographs indicates that fluoride attack of the TZM, Haynes Alloy 25, and Hastelloy C-276 specimens is similar to that observed in the earlier short-term tests. Thermal aging of Hastelloy C-… more
Date: July 1, 1976
Creator: Fullam, H. T. & Harmon, K. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Dielectric coatings on metal substrates

Description: Large aperture, beryllium substrate-based mirrors have been used to focus high intensity pulsed laser beams. Finished surfaces have high reflectivity, low wavefront distortion, and high laser damage thresholds. This paper describes the development of a series of metallic coatings, surface finishing techniques, and dielectric overcoatings to meet specified performance requirements. Beryllium substrates were coated with copper, diamond-machined to within 5 micro-inches to final contour, nickel pl… more
Date: July 27, 1976
Creator: Glaros, S. S.; Baker, P. & Milam, D.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Evaluating aeroshell materials for the MJS/multi-hundred watt heat source. [Reentry survival from an aborted launch]

Description: In order to evaluate the possibility of improving upon an existing aeroshell design for the Multi-Hundred Watt power source, a trade-off study was conducted on a variety of candidate aeroshell materials. Mariner Jupiter/Saturn mission requirements and aeroshell material criteria were established to form a basis for the evaluation. Material data searches and reentry analyses were made to permit preparation of a quantitative comparison matrix. Depending upon the designer's constraints, either the… more
Date: July 1976
Creator: Bennett, G. L.; Hagan, J. C. & Tantino, D. C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Lithium--water--air battery project: progress during the month of June 1976

Description: Investigations into the polarization of the Li electrode in LiOH at ambient temperatures were concluded. Voltammetric techniques were used to obtain a matrix of data for bulk electrolyte concentrations of 4.25 and 4.70 M LiOH at different electrolyte flow rates. The anodic limiting current density, i/sub lim/, was found to increase with flow rate. Double logarithmic plots of i/sub lim/ against flow rate for various concentrations of electrolyte are linear. As the LiOH concentration increases, i… more
Date: July 1, 1976
Creator: Cooper, J. F.; Hosmer, P. K. & Homsy, R. V.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Electron-beam, multipass, wire-fed welding of Type 5083 aluminum

Description: The versatility and advantages of electron-beam, multipass, wire-fed welding were demonstrated on 5.33 and 1.52-mm (210 and 60-mil)-thick Type 5083 aluminum cylinders by making full-penetration welds that had controlled inner distortion and minimum porosity. A comparison was made between the mechanical properties of gas tungsten-arc welds; electron-beam, wire-fed welds compared favorably with the yield strength of the arc welds and autogenous, electron-beam welds. The tensile strength of the el… more
Date: July 1, 1976
Creator: Murphy, J. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Refractory metals fabrication technology as applied to fusion reactors

Description: Activities are reported in research programs on inspection and fabricion of refractory metals and alloys including those of Mo, Nb, Ta, and V. Progress is summarized in sections on blanking, edge preparation, machining, forming, joining, cleaning, thermal processing, and coating. (JRD)
Date: July 1, 1976
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Theoretical tool movement required to diamond turn an off-axis paraboloid on axis

Description: Current techniques for manufacturing off-axis paraboloids are both expensive and insufficiently accurate. An alternative method, turning the workpiece about its axis on a diamond-turning machine, is presented, and the equations describing the necessary tool movement are derived. A discussion of a particular case suggests that the proposed technique is feasible.
Date: July 21, 1976
Creator: Thompson, D. C.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Chemical vapor deposition growth. Quarterly report No. 2

Description: The objective of the program is the development of CVD techniques for producing large areas of Si sheet on inexpensive substrate materials, with sheet properties suitable for fabricating solar cells meeting the technical goals of the Low Cost Silicon Solar Array Project (LCSSAP). The techniques developed are to be directed toward (1) minimum-cost processing, (2) production of sheet having properties adequate to result in cells with terrestrial array efficiency of 10 percent or more, and (3) eve… more
Date: July 1, 1976
Creator: Ruth, R. P.; Manasevit, H. M.; Kenty, J. L.; Mondy, L. A.; Simpson, W. I. & Yang, J. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Formation and evaluation of convex-curved crystals of lithium fluoride for use in analyzing x-ray spectra

Description: Lithium fluoride as received from the vendor in boule form is 38 x 38 x 13 mm thick. This block is cleaved to wafers of the desired thickness, x-ray-evaluated for ''d'' spacing and greatest intensity, bent to the required radius, and then acid-etched to remove foreign material. The diffraction and dispersion characteristics of a wafer are analyzed using well-collimated tungsten x rays that strike the crystal and are diffracted onto no-screen x-ray film. If the crystal is satisfactory, it is mou… more
Date: July 22, 1976
Creator: Sellick, Barton O.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Radioisotope space power generator annual report, July 1, 1974--June 30, 1975. [TPM-217 P-type material and SiGe technology]

Description: The Isotec Technology Program for FY-75 concentrated on materials development efforts in two areas: TPM-217 P-type material and SiGe technology. TPM-217 P-type material is a 3M proprietary thermoelectric material whose principal components are Cu, Ag, and Se. The usefulness of TPM-217 P-type selenide in thermoelectric converters depends on its dimensional, electrical, and thermal stability at high temperature and its compatibility with other converter component materials in a low-pressure envir… more
Date: July 30, 1976
Creator: Elsner, N. B.; Chin, J. & Staley, H. G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Role of ferrite and phosphorus plus sulphur in the crack sensitivity of autogenously welded type 309 stainless steel

Description: A study on autogenous welding of Type 309 thin stainless steel sheet was made after experiencing cracking difficulties on several commercial heats. A relationship exists between the sum of the phosphorus plus sulfur, the ferrite control of the weld metal, and the crack sensitivity of autogenously made welds. A new simple weld test for thin-gage sheet is utilized for studying the susceptibility to cracking. A chemistry modification is suggested to alleviate possible weld cracking when autogenous… more
Date: July 1, 1976
Creator: Lambert, Jr., F. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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