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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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Enhanced durability and reactivity for zinc ferrite desulfurization sorbent

Description: AMAX Research Development Center (AMAX R D) has been investigating methods for enhancing the reactivity and durability of the zinc ferrite desulfurization sorbent. Zinc ferrite sorbents are intended for use in desulfurization of hot coal gas in integrated gasification combined cycle (IGCC) or molten carbonate fuel cell (MCFC) applications. For the present program, the reactivity of the sorbent may be defined as its sulfur sorption capacity at the breakthrough point and at saturation in a bench-… more
Date: August 28, 1987
Creator: Jha, Mahesh C.; Baltich, Linda K. & Berggren, Mark H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Potential for energy conservaton in the metal forming industries. Progress report, July 1, 1978-August 15, 1979

Description: Reduced energy consumption and improved product attributes are realizable benefits that are achievable through the adoption of optimal metal forming techniques. With the meteoric rise in energy costs, certain segments of the metal forming industries have accelerated their efforts in switching from energy intensive manufacturing techniques, e.g., casting, to metal forming, and, furthermore, from hot forming and machined components to cold forming, notably the automotive industry. The first year … more
Date: August 1, 1979
Creator: Avitzur, B.; Beidleman, C. R. & Smackey, B. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Solidification of commercial and defense low-level radioactive waste in polyethylene

Description: A process was developed for the solidification of salt wastes, incinerator ash and ion-exchange resins in polyethylene. Of the salt wastes, sodium sulfate and boric acid are representative of the wastes produced at commercial nuclear facilities while sodium nitrate in a typical high-volume waste generated at defense-related facilities. Ease of processibility and high loading efficiencies were obtained through the use of low-density polyethylene with melt indices ranging from 2.0 to 55.0 g/minut… more
Date: August 1, 1987
Creator: Franz, E.M.; Heiser, L.H. & Colombo, P.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Enhanced durability and reactivity for zinc ferrite desulfurization sorbent. Quarterly technical progress report No. 3, April--June 1987

Description: AMAX Research & Development Center (AMAX R&D) has been investigating methods for enhancing the reactivity and durability of the zinc ferrite desulfurization sorbent. Zinc ferrite sorbents are intended for use in desulfurization of hot coal gas in integrated gasification combined cycle (IGCC) or molten carbonate fuel cell (MCFC) applications. For the present program, the reactivity of the sorbent may be defined as its sulfur sorption capacity at the breakthrough point and at saturation in a benc… more
Date: August 28, 1987
Creator: Jha, M. C.; Baltich, L. K. & Berggren, M. H.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Improvements in manufacture of iridium alloy materials

Description: Iridium alloys are used as fuel-cladding material in radioisotope thermoelectric generators (RTGs). Hardware produced at the Oak Ridge National Laboratory (ORNL) has been used in Voyager 1 and 2, Galileo, and Ulysses spacecraft. This hardware was fabricated from small, 500-g drop-cast ingots. Porosity in these ingots and the resulting defects in the rolled sheets caused rejection of about 30% of the product. An improved manufacturing process was developed with the goal of substantially reducing… more
Date: August 1, 1992
Creator: Ohriner, E. K.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Chromatin condensation in terminally differentiating mouse erythroblasts does not involve special architectural proteins but depends on histone deacetylation

Description: Terminal erythroid differentiation in vertebrates is characterized by progressive heterochromatin formation, chromatin condensation and, in mammals, culminates in nuclear extrusion. To date, although mechanisms regulating avian erythroid chromatin condensation have been identified, little is known regarding this process during mammalian erythropoiesis. To elucidate the molecular basis for mammalian erythroblast chromatin condensation, we used Friend virus-infected murine spleen erythroblasts th… more
Date: August 21, 2008
Creator: Popova, Evgenya Y.; Krauss, Sharon Wald; Short, Sarah A.; Lee, Gloria; Villalobos, Jonathan; Etzell, Joan et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Physical and Numerical Analysis of Extrusion Process for Production of Bimetallic Tubes

Description: Bimetallic tubes are used for very specific applications where one of the two metals provides strength and the other provides specific properties such as aqueous corrosion and carburization, coking resistance, and special electrical and thermal properties. Bimetallic tubes have application in pulp and paper industry for heat-recovery boilers, in the chemical industry for ethylene production, and in the petrochemical industry for deep oil well explorations. Although bimetallic tubes have major a… more
Date: August 10, 2006
Creator: Misiolek, W. Z. & Sikka, V. K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Extruded scintillator for the calorimetry applications

Description: An extrusion line has been installed and successfully operated at FNAL (Fermi National Accelerator Laboratory) in collaboration with NICADD (Northern Illinois Center for Accelerator and Detector Development). This new Facility will serve to further develop and improve extruded plastic scintillator. Recently progress has been made in producing co-extruded plastic scintillator, thus increasing the potential HEP applications of this Facility. The current R&D work with extruded and co-extruded … more
Date: August 1, 2006
Creator: Dyshkant, A.; Rykalin, V.; /NICADD, Dekalb; Pla-Dalmau, A.; /Fermilab; Beznosko, D. et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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IMPROVEMENT OF WEAR COMPONENT'S PERFORMANCE BY UTILIZING ADVANCED MATERIALS AND NEW MANUFACTURING TECHNOLOGIES: CASTCON PROCESS FOR MINING APPLICATIONS

Description: The project has seen quite a bit of activity in this quarter, highlighted by the fabrication of a bit insert for field testing. In addition: (1) Several alternative process techniques were attempted to prevent bloating, cracking and delamination of FM material that occurs during binder burnout. The approaches included fabrication of FM material by three pass extrusion and warm isostatic pressing of green material, slow and confined burnouts as well as, burnout of thin plate instead of rod stock… more
Date: August 27, 2002
Creator: Huang, Xiaodi & Gertsch, Richard
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Cu2Sb thin film electrodes prepared by pulsed laser deposition f or lithium batteries

Description: Thin films of Cu2Sb, prepared on stainless steel and copper substrates with a pulsed laser deposition technique at room temperature, have been evaluated as electrodes in lithium cells. The electrodes operate by a lithium insertion/copper extrusion reaction mechanism, the reversibility of which is superior when copper substrates are used, particularly when electrochemical cycling is restricted to the voltage range 0.65-1.4 V vs. Li/Li+. The superior performance of Cu2Sb films on copper is attrib… more
Date: August 1, 2003
Creator: Song, Seung-Wan; Reade, Ronald P.; Cairns, Elton J.; Vaughey, Jack T.; Thackeray, Michael M. & Striebel, Kathryn A.
Item Type: Refine your search to only Article
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: August 31, 2004
Creator: Kad, Bimal K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Dimensional stability of Ti--6Al--6V--2Sn

Description: The dimensional stability of Ti-6Al-6V-2Sn has been examined. It is shown that in the duplex annealed condition Ti-6Al-6V-2Sn is dimensionally stable at temperatures up to 448/sup 0/K for 512 hrs. Solution treated Ti-6Al-6V-2Sn undergoes large dimensional changes during both initial aging between 673 and 973/sup 0/K and subsequent exposure to low temperatures (< or = to 448/sup 0/K). These results indicate that if close dimensional tolerances must be maintained, duplex annealed Ti-6Al-6V-2Sn sh… more
Date: August 1, 1978
Creator: Rack, Henry J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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High temperature, high strain rate extrusion of ultrahigh-carbon steels

Description: It is shown that high rate extrusion is a viable production process for obtaining desirable microstructures and mechanical properties in ultrahigh carbon steels (UHCSs). The coefficient of friction for extrusion was determined for the UHCSs as well as five other materials and shown to be a function of stress--decreasing with increasing stress. The extruded UHCSs deform by a diffusion-controlled dislocation creep process. Stacking fault energies have been calculated from the extrusion data and o… more
Date: August 23, 2000
Creator: Lesuer, D R; Syn, C K & Sherby, O D
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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PROCESS DEVELOPMENT QUARTERLY REPORT. PART II. PILOT PLANT WORK

Description: ABS>The stoicbiometric HNO/sub 3/ concentrations required to digest feed materials to 200g U/I, 3N excess acid are tabulated. Stoichiometrically the minimum HNO/sub 3/ concentration required to dissolve feed materials to flowsheet conditions flowsheet tests is presented. The sensitivity of the Weldon Spring TBP-extraction system to process flow rates is discussed. A series of pilot plant experiments are deserined for removing TBP from raffinate. Steam distillstion of the raffinate slurries prov… more
Date: August 1, 1957
Creator: Elliott, B. ed.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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PROGRESS RELATING TO CIVILIAN APPLICATIONS DURING JULY 1959

Description: A study of the creep properties of 15% cold-worked and annealed Zircaloy- 2 sheet at 290, 345, and 400 deg C is continuing. Data are presented on the corrosion in bightemperature water of defected natural-U fuel cores extrusion clad with Zircaloy-2. The composition and temperature of the Al--U--Ni ternary eutectic in high-Al alloys are being determined. The study of neutron-activation analysis of cement raw materials was continued. Work continued on the study of radiation-induced changes in pol… more
Date: August 1, 1959
Creator: Dayton, R.W. & Tipton, C.R. Jr.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Extrusion cladding of Uranium fuel plates

Description: Two methods for extrusion cladding were investigated and evaluated. In the coaxial method, the component parts of the extrusion assembly are concentric, and the fuel plate moves in the same direction as the hydraulicpress ram. In the right-angle method, the fuel-plate metion is perpendicular to that of the ram. Ribbed sheaths of aluminum were extruded satisfactorily on 3-in.-wide uranium plates in lengths up to about 10 ft. Lowest extrusion pressures were achieved with the most streamlined desi… more
Date: August 22, 1958
Creator: Fiorentino, R. J.; Drennen, D. C.; Slunder, C. J. & Hall, A. M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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A multi-level code for metallurgical effects in metal-forming processes

Description: The authors present the final report on a Laboratory-Directed Research and Development (LDRD) project, A Multi-level Code for Metallurgical Effects in metal-Forming Processes, performed during the fiscal years 1995 and 1996. The project focused on the development of new modeling capabilities for simulating forging and extrusion processes that typically display phenomenology occurring on two different length scales. In support of model fitting and code validation, ring compression and extrusion … more
Date: August 1, 1997
Creator: Taylor, P. A.; Silling, S. A.; Hughes, D. A.; Bammann, D. J. & Chiesa, M. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Processing and properties of molybdenum silicide intermetallics containing boron

Description: Molybdenum-silicon-boron intermetallics with the composition Mo-10.5 Si-1.1 B, wt% (Mo-26.7 Si-7.3 B, at. %) were fabricated by several processing techniques. Powder processing (PM) resulted in macrocrack-free material containing no or only few microcracks. The PM materials contained quasi-equilibrium pores and large concentrations of oxygen. Average room temperature flexure strengths of 270 MPa were obtained. At 1,200 C in air, flexure strengths as high as 600 MPa were observed. These high val… more
Date: August 1, 1997
Creator: Schneibel, J.H.; Liu, C.T.; Heatherly, L.; Wright, J.L. & Carmichael, C.A.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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