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A PROGRAM OF RESEARCH ON MECHANICAL METALLURGY AS RELATED TO FUEL-ELEMENT FABRICATION. Quarterly Progress Report for the Period Ending June 30, 1961

Description: Results of crawing experiments using 3/8-in. bars to provide rod and tube test specimens are reported. In mechanical metallurgy investigations on the relation of formability to imperfection structure the peierls potentials for dislocation of Nb, Mo, Ta, and W were measured. Design and construction of a microextensometer reported. The investigations of the effects of grain size on the stored energy cold work were extended to a new lot OFHC Cu. In studies of formability relations with imperfectio… more
Date: August 31, 1961
Creator: Trozera, T Z; Koyama, K; White, J L & Chambers, R H
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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INVESTIGATION OF THE TECHNICAL FEASIBILITY OF COLD EXTRUSION FOR ZIRCALOY-2 TUBING PRODUCTION. Quarterly Technical Progress Report, July-September, 1961

Description: Bar-extrusion tests were performed at 50. 65, and 80% reductions at room temperature and 300 deg C. Tensile tests were conducted on as-extruded and heat-treated specimens. The results are tabulated for comparison. The extrusion of small tubing, 0.560-in. OD x 0.030-in. wall, in the first and second tube- extrusion steps are described. (B.O.G.)
Date: October 31, 1962
Creator: Weil, F.E. & Hill, J.G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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INVESTIGATION OF THE TECHNICAL FEASIBILITY OF COLD EXTRUSION FOR ZIRCALOY-2 TUBING PRODUCTION. Quarterly Technical Progress Report, October-December 1960

Description: S>Activities included completion of room-temperature extrusion tests on Zircaloy bar, and extrusions with 50% reduction at temperatures up to 400 deg C. Results of these tests are tabulated along with results of billet piercing tests at 300 deg C. It is noted that production of capped Zircaloy tubes by cold extrusion appears promising. (J.R.D.)
Date: October 31, 1962
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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INVESTIGATION OF THE TECHNICAL FEASIBILITY OF COLD EXTRUSION FOR ZIRCALOY-2 TUBING PRODUCTION. Quarterly Technical Progress Report No. 3, April-June 1961

Description: Investigations are being made to establish the feasibility of using cold extrusion to produce Zircaloy-2 tubular products. Tests on extruding 1 1/4-in. diameter billets were completed. Samples in 46 bar-extrusion tests were extruded with 80% reduction at 400 deg C. Severe lubricant breakdown occurred. Piercing tests were conducted at, room temperature and 200 deg C, using 50% reduction and a 140-degree conical punch profile. Good extrusions were obtained in forraing 1.07-in. OD x 0.052-in. wall… more
Date: October 31, 1962
Creator: Weil, F.E. & Hill, J.G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Improved Tubulars for Better Economics in Deep Gas Well Drilling using Microwave Technology

Description: The main objective of the entire research program has been to improve the rate-of-penetration in deep hostile environments by improving the life cycle and performance of coiled-tubing, an important component of a deep well drilling system for oil and gas exploration, by utilizing the latest developments in the microwave materials technology. Based on the results of the Phase I and insurmountable difficulties faced in the extrusion and de-waxing processes, the approach of achieving the goals of … more
Date: July 31, 2007
Creator: Agrawal, Dinesh; Gigl, Paul; Hunt, Mark & Dennis, Mahlon
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Processing and properties of iridium alloys for space power applications

Description: Iridium alloys are used as fuel cladding in radioisotope thermoelectric generators due to their high-melting point, high- temperature strength, and oxidation and corrosion resistance. Although iridium has a face-centered cubic crystal structure, it undergoes a distinct ductile-to-brittle transition characteristic of many body-centered cubic metals. Improved ductility in the alloys is achieved through material purification and controlled alloy additions at the parts per million (ppm) level. A va… more
Date: December 31, 1994
Creator: Ohriner, E. K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Process and apparatus for coal hydrogenation

Description: In a coal liquefaction process an aqueous slurry of coal is prepared containing a dissolved liquefaction catalyst. A small quantity of oil is added to the slurry and then coal-oil agglomerates are prepared by agitation of the slurry at atmospheric pressure. The resulting mixture is drained of excess water and dried at atmospheric pressure leaving catalyst deposited on the agglomerates. The agglomerates then are fed to an extrusion device where they are formed into a continuous ribbon of extruda… more
Date: December 31, 1990
Creator: Ruether, J. A. & Simpson, T. B.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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Production test IP-468-A-FP, Program for evaluation of alpha extruded fuel cores

Description: Currently, all normal production HAPO fuel cores are rolled into rods at Fernald, consequently, HAPO is dependent upon one vendor for a critical raw material. This arrangement does not appear to be consistent with good business practice, and it is desirable to have an alternate fuel source tested and available. Mallinckrodt`s Weldon Spring plant contains an extrusion press for the gamma bar extrusion and a logical sequence of operations should permit further extrusion in the alpha phase to the … more
Date: January 31, 1962
Creator: Clinton, M. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A model for the biaxial post-yield behavior of extruded powder aluminum at elevated temperature

Description: A model has been developed which describes the post-yield behavior of extruded powder aluminum tested biaxially in tension and torsion at elevated temperature. Plots of shear stress versus shear strain for the powder aluminum loaded in simple torsion show that the shear stress increases linearly to the yield point, then remains relatively constant in a pure plastic type of behavior. For the tension-torsion tests, there is an initial linear region up to the yield point followed by a fairly linea… more
Date: December 31, 1990
Creator: Woods, T. O.; Berghaus, D. G. & Peacock, H. B.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Fundamental alloy design of oxide ceramics and their composites. [Annual] report, May 1, 1990--August 31, 1992

Description: The main research was on microstructural development of oxide ceramics. Projects were completed and the publications given. Abstracts are given on: Reactive CeO{sub 2}powders by homogeneous precipitation, SiC whisker-reinforced lithium aluminosilicate composite, solute drag on grain boundary in ionic solids (space charge effect), in-situ alumina/aluminate platelet composites, exaggerated texture and grain growth of superplastic silicon nitride (SiAlON), hot extrusion of ceramics, control of gra… more
Date: December 31, 1992
Creator: Chen, I. W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Extrusion of metal oxide superconducting wire, tube or ribbon

Description: A process and apparatus for extruding a superconducting metal oxide composition YBa{sub 2}Cu{sub 3}O{sub 7-x} provides a wire (tube or ribbon) having a cohesive mass and a degree of flexibility together with enhanced electrical properties. Wire diameters in the range of 6--85 mils have been produced with smaller wires on the order of 10 mils in diameter exhibiting enhanced flexibility for forming braided, or multistrand, configurations for greater current carrying capacity. The composition for … more
Date: December 31, 1990
Creator: Dusek, Joseph T.
Item Type: Refine your search to only Patent
Partner: UNT Libraries Government Documents Department
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CROSS-ROLL FLOW FORMING OF ODS ALLOY HEAT EXCHANGER TUBES FOR HOOP CREEP ENHANCEMENT

Description: Mechanically alloyed oxide dispersion strengthened (ODS) Fe-Cr-Al alloy thin walled tubes and sheets, produced via powder processing and consolidation methodologies, are promising materials for eventual use at temperatures up to 1200 C in the power generation industry, far above the temperature capabilities of conventional alloys. Target end-uses range from gas turbine combustor liners to high aspect ratio (L/D) heat exchanger tubes. Grain boundary creep processes at service temperatures, parti… more
Date: March 31, 2004
Creator: Kad, Bimal K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Extrusion of I and E `O` size tubing to evaluate reduction in extruded O.D. and the use of pressed salt follower blocks: Experiment Number U-21

Description: The object of this experiment was to extrude normal uranium hollow billets to I and E `O` size tubing with reduced extruded O.D. and also to evaluate the use of pressed salt follower blocks. Pressed salt (NaCl) follower blocks under various conditions of pre-heat temperature were compared with the standard graphite at 800 F. Even though some yield reduction results, it was concluded that pressed salt follower blocks at 300 F represent a substantial cost reduction due to the extreme price differ… more
Date: January 31, 1961
Creator: Puterbaugh, J.F.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

CROSS-ROLL FLOW FORMING OF ODS ALLOY HEAT EXCHANGER TUBES FOR HOOP CREEP ENHANCEMENT

Description: Mechanically alloyed oxide dispersion strengthened (ODS) Fe-Cr-Al alloy thin walled tubes and sheets, produced via powder processing and consolidation methodologies, are promising materials for eventual use at temperatures up to 1200 C in the power generation industry, far above the temperature capabilities of conventional alloys. Target end-uses range from gas turbine combustor liners to high aspect ratio (L/D) heat exchanger tubes. Grain boundary creep processes at service temperatures, parti… more
Date: August 31, 2004
Creator: Kad, Bimal K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Extruding plastic scintillator at Fermilab

Description: An understanding of the costs involved in the production of plastic scintillators and the development of a less expensive material have become necessary with the prospects of building very large plastic scintillation detectors. Several factors contribute to the high cost of plastic scintillating sheets, but the principal reason is the labor-intensive nature of the manufacturing process. In order to significantly lower the costs, the current casting procedures had to be abandoned. Since polystyr… more
Date: October 31, 2003
Creator: Pla-Dalmau, Anna; Bross, Alan D. & Rykalin, Victor V.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Ceramics Research and Development Operation Quarterly Report, October- December 1962

Description: CERAMICS RESEARCH AND DEVELOPMENT OPERATION QUARTERLY REPORT, OCTOBERDECEMBER 1962. Pu/sub 2/S/sub 3/ melted congruently at 1725 450 deg C in a 10 un. Concent 85% C under vacuum or argon and was stable to 2300 un. Concent 85% C in argon. Pu/sub 2/S/sub 3/ was not attacked by boiling, demineralized water. PuN melted congruently at 2750 450 deg C in a 75 un. Concent 85% C under nitrogen (1 atm), but dissociated at 2600 un. Concent 85% under argon or helium. Plutonium carbides and oxides of variou… more
Date: October 31, 1963
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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INVESTIGATION OF THE TECHNICAL FEASIBILITY OF COLD EXTRUSION FOR ZIRCALOY-2 TUBING PRODUCTION. Quarterly Technical Progress Report, October-December 1961

Description: The extrusion of fuel-element-size tubing was continued, and the product at each stage of the sequence of operations is illustrated. The precision die set for piercing is described. Results of first- and second-tube extrusions are reported. Pole-figure studies of the cold-extruded tubing and of commercial tubing indicate that the cold-extruded tubing should have greater burst strength. It is concluded that Zircaloy-2 tubing can be cold-extruded from 1-inchdiameter bar stock, and that the cold-e… more
Date: October 31, 1963
Creator: Weil, F.E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Particle characterization. Quarterly report October--December, 1970

Description: In the manufacture of Extex (XTX 8003, 80% PETN, 20% Sylgard silicone rubber), the formulation is mixed for about five hours. Freon MF is added in the proportions of fur pounds Extex to one quart Freon, to enhance the mixing at lower power than would otherwise be the case. After mixing, the formulation is milled on a three-roll rubber mill for a total of 25 passes. The study of the effects of roll milling on Extex was started; the visual results are indicative that a considerable reduction in c… more
Date: December 31, 1970
Creator: Duncan, A. A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Novel Hydrogen Purification Device Integrated with PEM Fuel Cells

Description: A prototype device containing twelve membrane tubes was designed, built, and demonstrated. The device produced almost 300 scfh of purified hydrogen at 200 psig feed pressure. The extent of purification met the program target of selectively removing enough impurities to enable industrial-grade hydrogen to meet purity specifications for PEM fuel cells. An extrusion process was developed to produce substrate tubes. Membranes met several test objectives, including completing 20 thermal cycles, exce… more
Date: December 31, 2010
Creator: Schwartz, Joseph; Lim, Hankwon & Drnevich, Raymond
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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