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The Application of Ceramics to Hanford Fuel Elements

Description: From introduction: This work is a survey of possible uses of ceramic materials in Hanford-type fuel elements.
Date: September 4, 1953
Creator: King, B. W.; Tripp, H. P. & Duckworth, W. H.
Partner: UNT Libraries Government Documents Department
open access

Uranium Migration in UO₂-Bearing Ceramics

Description: This report follows a preliminary study on uranium migration in pressed and sintered UO2-bearing bodies based on MoSi2 or Al2O3.
Date: September 4, 1953
Creator: Quirk, J. F.; Smalley, A. K.; Duckworth, W. H. & Ferrell, Edward Francis.
Partner: UNT Libraries Government Documents Department
open access

Differential Thermal-Expansion Effects on Brazed Joints

Description: Abstract: "Differential thermal-expansion effects in brazed joints involving Type 310 stainless steel and GE-62 brazing alloy were investigated. The work included dilation and modulus-of-elasticity measurements using homogenous cast specimens and observations on bimetallic cantilevers made of the two constituents. No anomalies were found, although there were irregularities in the expansion of the brazing alloy which were ascribed to a solubility phenomenon. The elastic modulus of the brazing al… more
Date: September 4, 1953
Creator: Saller, Henry A.; Baroody, Eugene Michael, 1914-1982; Deem, H. W.; Stacy, J. T. & Klebanow, H. L.
Partner: UNT Libraries Government Documents Department
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Studies of the speed stability of a tandem helicopter in forward flight

Description: Flight-test measurements, related analytical studies, and corresponding pilots' opinions of the speed stability of tandem-rotor helicopter are presented. An undesirable instability, evidenced by rearward stick motion with increasing forward speed at constant power, is indicated to be caused by variations with speed of the front-rotor downwash at the rear rotor. An analytical expression for predicting changes in speed stability caused by changes in rotor geometry is derived and constants for use… more
Date: June 4, 1953
Creator: Tapscott, Robert J. & Amer, Kenneth B.
Partner: UNT Libraries Government Documents Department
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Investigation of low-pressure performance of experimental tubular combustors differing in air-entry-hole geometry

Description: Report presenting an investigation to determine, by experiments within the scope of air-entry-hole geometry, design criteria for tubular combustors with good low-pressure performance. Combustion efficiency, operable fuel-air-ratio and pressure ranges, and minimum ignition pressures were determined for several combustor configurations at conditions simulating a 5.2-pressure-ratio turbojet engine operating at 85 percent of rated rotor speed, a flight Mach number of 0.6, and altitudes from 56,000 … more
Date: September 4, 1953
Creator: Dittrich, Ralph T.
Partner: UNT Libraries Government Documents Department
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Investigation of a High-Pressure-Ratio Eight-Stage Axial-Flow Research Compressor With Two Transonic Inlet Stages 1: Aerodynamic Design

Description: Memorandum presenting an eight-stage high-pressure-ratio axial-flow compressor designed for use as a research unit in which the problems associated with design and off-design performance of transonic stages combined with highly loaded subsonic stages could be studied. The report discusses the design procedure and presents the experimentally determined overall performance of the compressor.
Date: December 4, 1953
Creator: Voit, Charles H.
Partner: UNT Libraries Government Documents Department
open access

Wind-Tunnel Investigation at High and Low Subsonic Mach Numbers of Two Unswept Wings Having NACA 2-006 and NACA 65A006 Airfoil Sections

Description: Report presenting an investigation in the low-turbulence pressure tunnel to determine the lift, drag, and pitching-moment characteristics of two unswept wings, one with airfoil sections designed for high maximum lift at low speeds (NACA 2-006) and one with NACA 65A006 airfoil sections. Results regarding lift and pitching-moment, effects of roughness, drag, and wings with flaps are provided for high- and low-speed performance.
Date: December 4, 1953
Creator: Racisz, Stanley F.
Partner: UNT Libraries Government Documents Department
open access

Some Effects of Leading-Edge Roughness on the Aileron Effectiveness and Drag of a Thin Rectangular Wing Employing a Full-Span Plain Aileron at Mach Numbers From 0.6 to 1.5

Description: Report presenting an investigation of the effects of adding leading-edge roughness to the surfaces of an unswept, untapered, 6-percent-thick, circular-arc-airfoil wing equipped with a full-span, 0.2-chord, plain, trailing-edge aileron. Results regarding the rolling-effectiveness data, addition of roughness on a wing, and variation of drag coefficient are provided.
Date: November 4, 1953
Creator: English, Roland D.
Partner: UNT Libraries Government Documents Department
open access

Experimental Determination of Gas Motion Accompanying Screeching Combustion in a 6-Inch Simulated Afterburner

Description: Report presenting an investigation to develop screech instrumentation and study the mechanism of screech in a simulated afterburner. Results regarding the screech mechanism, effect of system variables on screech, speculation regarding screech mechanism, and suggested techniques for elimination or control of screech are provided.
Date: December 4, 1953
Creator: Blackshear, Perry L.; Rayle, Warren D. & Tower, Leonard K.
Partner: UNT Libraries Government Documents Department
open access

Analysis of part-speed operation for high-pressure-ratio multistage axial-flow compressors

Description: From Introduction: "For the analysis reported herein, the same hypothetical 12-stage compressor discussed in reference 6 was chosen, and the effects of inlet-stage stall characteristics and stage interactions were estimated by arbitrary adjustment of the stall characteristics and stage interactions were estimated by arbitrary adjustment of the stalled characteristics of the individual stages."
Date: December 4, 1953
Creator: Benser, William A.
Partner: UNT Libraries Government Documents Department
open access

Tests of the NACA 0010-1.50 40/1.051 Airfoil Section at High Subsonic Mach Numbers

Description: Memorandum presenting the aerodynamic characteristics of the NACA 0010-1.50 40/1.051 airfoil section as determined from wind-tunnel tests at Mach numbers from 0.3 to 0.9. The results are compared with those of the effects of leading-edge-radius variation from 0.27 to 1.10 percent of the chord on the characteristics of a 10-percent-thick, symmetrical airfoil section at high subsonic Mach numbers. Results regarding the lift characteristics, drag characteristics, and pitching-moment characteristic… more
Date: September 4, 1953
Creator: Hemenover, Albert D.
Partner: UNT Libraries Government Documents Department
open access

A Comparison of Several Systems of Boundary-Layer Removal Ahead of a Typical Conical External-Compression Side Inlet at Mach Numbers of 1.88 and 2.93

Description: Report presenting an investigation at Mach numbers 1.88 and 2.93 to determine the performance characteristics of a conical external-compression side inlet model with a swept-leading-edge boundary-layer-removal scoop. Two other boundary-layer-removal systems were also investigated, which used a deflection wedge and cowl-lip scoops. Results regarding swept-scoop inlets, scoop performance, alternative boundary-layer-removal systems at Mach 1.88, and a comparison of the boundary layer removal syste… more
Date: September 4, 1953
Creator: Piercy, Thomas G. & Johnson, Harry W.
Partner: UNT Libraries Government Documents Department
open access

Wing loads on the Bell X-1 research airplane (10 percent thick wing) as determined by pressure-distribution measurements in flight at subsonic and transonic speeds

Description: Report presenting measurements of wing loads made on the left wing of the Bell X-1 research airplane. Data are presented within a wing-panel normal-force coefficient and Mach number range. Results regarding span load distributions, wing-panel aerodynamic characteristics, and wing-to-fuselage carry over are provided.
Date: November 4, 1953
Creator: Knapp, Ronald J. & Jordan, Gareth H.
Partner: UNT Libraries Government Documents Department
open access

The Calculated and Experimental Incremental Loads and Moments Produced by Split Flaps of Various Spans and Spanwise Locations on a 45 Degrees Sweptback Wing of Aspect Ratio 8

Description: Report presenting the incremental lift and pitching moments produced by 20-percent-chord split flaps of various spans at various spanwise positions on two 45 degree sweptback wings of aspect ratio 8.02 as obtained by pressure-distribution testing. Inboard flaps were found to be far more effective in producing lift than outboard flaps. Results regarding spanwise loading and pitching moment are provided.
Date: September 4, 1953
Creator: Kelly, H. Neale
Partner: UNT Libraries Government Documents Department
open access

Technical activities report for May 1953: Physics Unit, Applied Research Sub-Section

Description: In this report, a brief discussion is given for each of the following activities under study during this period: xenon generator; C{sup 12} cross sections; critical mass problems (for process vessels in Bldg. 231); neutron beam catcher design; neutron diffraction spectrometer; beta spectrometer; hollow slug program; instrumentation; blackness corrections; exponential pile measurements with small slug size; critical lattice experiments; lattice theory; and radiation damage.
Date: June 4, 1953
Creator: Faulkner, J. E.; Davenport, D. E. & Duvall, G. E.
Partner: UNT Libraries Government Documents Department
open access

Evaluation of anodic films on process tube exteriors

Description: The investigation reported in this document concerns itself with studies of the mechanism of corrosion on the exterior of process tubes and with studies of the protective qualities of anodic films which might prevent corrosion on the exterior of process tubes. Sections of process tubing coated with Aqua-Dag, a colloidal graphite suspension, were included in these tests for comparison purposes as present operating procedures call for the application of Aqua-Dag to the exterior of process tubes f… more
Date: March 4, 1953
Creator: Dalrymple, R. S.
Partner: UNT Libraries Government Documents Department
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A Summary and Bibliography of Some Research on Radiation Damage in Ceramic Materials Performed at the Argonne National Laboratory

Description: The susceptibleness of certain "ceramic" substances to extreme radiation damage (such as that observed in graphite) as indicated by changes in dimensions and heat content is discussed in terms of the experimental evidence which is available.
Date: March 4, 1953
Creator: Primak, William, 1917-
Partner: UNT Libraries Government Documents Department
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A Criterion For Vacuum Sparking Designed to Include Both R. F. and D. C.

Description: An empirical relation is presented which represents a boundary between no vacuum sparking and possible vacuum sparking. Metal electrodes and r.f. or d.c. voltages are used. The criterion fits several orders of surface gradient, voltage, gap, and frequency. Current due to field emission is considered necessary for sparking but in addition, energetic particles are required to initiate a cascade process which increases the field emission currents to the point of sparking. An elementary cascade pro… more
Date: September 4, 1953
Creator: Kilpatrick, W. D.
Partner: UNT Libraries Government Documents Department
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Technical Activities Report for April 1953

Description: Two xenon extraction runs were made this month. It appears that a small design change in Trap #2 will be necessary so that a dry ice-trichloroethylene slurry can be used for coolant rather than liquid freon. For each of the runs this month the enriched generator was exposed for four hours in the est pile operating at 100 watts. A period of eight hours for cooling and xenon builidup was allowed before the collection and separation runs were started.
Date: May 4, 1953
Creator: Faulkner, J. E.; Davenport, D. E. & Duvall, G. E.
Partner: UNT Libraries Government Documents Department
open access

Ru-106 - Rh-106 Activity

Description: In obtaining the results reported here a double focusing magnetic type spectrometer was used. Momentum spread was about 1%, and in most cases 2560 counts per point were taken. An end window Geiger tube was used as a detector. The window was of mica with areal density of 1.6 mg/cm2.
Date: August 4, 1953
Creator: Boyd, L. R.
Partner: UNT Libraries Government Documents Department
open access

Radioactive Particle Fallout in the Hanford Environs from Nevada Nuclear Explosions Spring-1953

Description: Various organizations in the Biophysics Section of the Radiological Sciences Department participated in evaluating local radioactive particle fallout as influenced by the nuclear explosions at the Nevada Proving Grounds during the early part of 1953. Data collected from approximately 50 air monitoring stations operated by the Regional Survey forces were used to determine the trend of radioactive particle concentrations in the atmosphere between March and June. These measurements were suppleme… more
Date: August 4, 1953
Creator: Paas, H. J.; Adley, F. E.; ; ; Fuquay, J. J. & Jenne, D. E.
Partner: UNT Libraries Government Documents Department
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