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Development of Uranium Nitride-Stainless Steel Dispersion Fuel Elements

Description: In research in support of the GCRE, procedures for the fabrication of stainless steel-clad flat-plate fuel elements having a core of 28 w/o UN dispersed in an iron-18 w/o chromium--14 w/o nickel--2.5 w/o molybdenum matrix were developed. The preparation of UN and its compatibility with the components of the matrix alloy were studied. The UN for the program was prepared by nitriding uranium metal at 850 C and then dissociating the U/sub 2/N/sub 3/ produced to UN in a vacuum at 1300 C. In compatibility studies, UN reacted with nickel alone at 1800 F, but no reaction with nickel was observed when the other matrix components were also present. The effects of fabricational variables were evaluated by metallographic examination, longitudinal and transverse tensile tests, bend tests, and corrosion tests. Studies indicated that minus 200 plus 325-mesh UN dispersed in a minus 325-mesh elemental-powder matrix rolled green vith a 30 per cent initial reduction at 2100 F and then annealed 3 hr at 2300 F produced the best fuel core. (auth)
Date: July 31, 1959
Creator: Paprocki, S. J.; Keller, D. L.; Cunningham, G. W. & Foulds Jr., A. K.
Partner: UNT Libraries Government Documents Department
open access

The Hard-Core Pinch. I

Description: This report analyzes a linear, hard-core pinch tube built to examine tubes afflicted by small-scale instabilities evident from many observations.
Date: July 31, 1959
Creator: Birdsall, D. H.; Colgate, Stirling A. & Furth, Harold P.
Partner: UNT Libraries Government Documents Department
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The Hard-Core Pinch. II

Description: This report describes a toroidal version of the hard-core pinch and the additional information it can obtain to what the analogous linear pinch can get.
Date: July 31, 1959
Creator: Birdsall, D. H.; Colgate, Stirling A. & Furth, Harold P.
Partner: UNT Libraries Government Documents Department
open access

The Hard-Core Pinch. Part I

Description: It is well known that a pinch column with internal H/sub Z/ and external conducting shell can be made grossly stable, but that small-scale instabilities persist; especiaily in the tubular region of maximum current density. To investigate further these small-scale instabilities of the stabilized pinch,'' we are using 12-in.-i.d. linear pinch tube with a 3-in.-o.d. insulated center rod. By controlling a current along this rod, as well as a current along external conducting straps, and a third current in an external H/sub z/ coil, it is possible to create many grossly stable pinch configurations. The small-scale stability of the tubular region of maximum current density can thus be studied for a wide range of internal and external magnetic field vectors. The magnetic field distribution in each discharge is obtained by a string of 10 magnetic pick- up loops. The distribution of plasma density is determined by modulating the inner or outer wall current and measuring the radial velocity of the resultant compressional Alfven waves. In one experiment, an initial H/sub z/ is entrapped in plasma by preionization, and then pushed radially outward from the rod by a rising H/sub theta /. The resultant field distribution, in which H/sub theta / everywhere falls more rapidly than 1/r, should have absolute hydromagnetic stability. The persistence of small-scale instabilities, as observed by the magnetic probes, in this inverse stabilized pinch'' suggests that the basic trouble is nonhydromagnetic. It is also found that, when the magnetic field approximates a vacuum field distribution, perfectly smooth and reproducible probe signals can be obtained. The absolute plasma current densities at which nearvacuum field distributions have been found stable are larger than current densities at which the 'stabilized pinch'' and inverse stabilized pinch'' distributions have been found unstable. (auth)
Date: July 31, 1959
Creator: Birdsall, D.H.; Colgate, S.A. & Furth, H.P.
Partner: UNT Libraries Government Documents Department
open access

THE HARD-CORE PINCH. PART II

Description: The toroidal version of the hard-core pinch tube is created by levitating a ring conductor inside a toroidal shell. The magnitude of induced H/ sub theta / necessary for levi-tation is small in terms of field strengths normally desired for energetic pinches. In a 3-in. glass-and-copper toroid of square cross section a 3/4-in. hollow copper ring has been levitated with a 60- cycle current of 3 kiloamperes. A 12-in stainless steel tube of round cross section is being built. The stability of nearvacuum field hard-core configurations is best investigated in toroidal geometry. At high power levels and low plasma densities, the conventional toroidal stabilized pinch'' is subject to an anomalous plasma energy leakage to the wall, which cannot be explained by the observed ultraviolet radiation alone. A critical question is, therefore, whether the relative stability of some hard-core pinches, as reflected by the smoothness and reproducibility of magnetic probe traces, is reflected by an improved containment of the plasma en-ergy leading to high temperature. A toroidal hard-core tube is also useful in studying the nature of the nonhydromagnetic instabilities observed in the linear inverse stabilized pinch.'' The presence and condition of electrodes appear to have a substantial effect on the magnitude of these instabilities, as would be expected if they were, for instance, of electrostatic origin. In order to complement the plasma study of the hard-core pinch, we have developed an analogue method using sodium tubes to simulate the current-carrying layer. In this way the purely hydromagnetic aspect of the plasma behavior can be isolated. (auth)
Date: July 31, 1959
Creator: Birdsall, D.H.; Colgate, S.A. & Furth, H.P.
Partner: UNT Libraries Government Documents Department
open access

[News Script: Ants]

Description: Script from the WBAP-TV/NBC station in Fort Worth, Texas, covering a news story about the Dallas Health Department calling an emergency meeting to outlaw the spread of fire ants.
Date: July 31, 1959
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
open access

[News Script: Council]

Description: Script from the WBAP-TV/NBC station in Fort Worth, Texas, covering a news story about the Fort Worth City Council discussing the possibility of allowing the Texas Electric Company to install utility poles and equipment while the city pays for the cost through increased electric rates.
Date: July 31, 1959
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
open access

[News Script: Fur burglary]

Description: Script from the WBAP-TV/NBC station in Fort Worth, Texas, covering a news story about a burglary of the Nat Steur Fur Company in Dallas.
Date: July 31, 1959
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
open access

[News Script: Hunt]

Description: Script from the WBAP-TV/NBC station in Fort Worth, Texas, covering a news story about Lamar Hunt, who is making a football team in Dallas. The new team will be called the American Football League.
Date: July 31, 1959
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
open access

[News Script: Indian party]

Description: Script from the WBAP-TV/NBC station in Fort Worth, Texas, covering a news story about youngsters from Meadow Wood park on the east side of Fort Worth having an Indian themed party.
Date: July 31, 1959
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
open access

[News Script: New fire truck]

Description: Script from the WBAP-TV/NBC station in Fort Worth, Texas, covering a news story about a new fire truck being demonstrated in Fort Worth.
Date: July 31, 1959
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
open access

[News Script: Tax hearing]

Description: Script from the WBAP-TV/NBC station in Fort Worth, Texas, covering a news story about a tax committee meeting of the Dallas city council.
Date: July 31, 1959
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
open access

Zirconium Diboride, Boron Nitride, and Boron Carbide Compatibility With Austenitic Stainless Steel

Description: The compatibility of zirconium diboride, boron carbide, and boron nitride with type 304 stainless steel was evaluated as a function of temperature (1000 to 12OO deg C), time (1-3 hr). Appropriate loadings of the boron compounds and stainless steel powder were blended and fashioned into a compact powder metallurgically. Each compact was roll clad into a plate and subsequently heat treated at a temperature equal to the initial sintering temperature. Metallographic examination of the fabricated and heat-treated plates demonstrated that none of the systems was metallurgically stable. The instability was generally manifested by the interaction of the discrete boron compounds with the matrix and precipitation of a hypothetically boron-rich phase throughout the stainless steel matrix material. Of the three compounds, boron nitride was relatively the most stable in a stainless steel matrix under the test conditions. (auth)
Date: July 31, 1959
Creator: Cherubini, J. H. & Leitten, C. F. Jr.
Partner: UNT Libraries Government Documents Department
open access

[News Script: D Day at Ferris]

Description: Script from the WBAP-TV/NBC station in Fort Worth, Texas, covering a news story about Ferris, Texas getting dial service for their phones for the first time.
Date: July 30, 1959
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
open access

[News Script: Integration]

Description: Script from the WBAP-TV/NBC station in Fort Worth, Texas, covering a news story about the NAACP's court fight for school integration.
Date: July 30, 1959
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
open access

[News Script: Job hunter takes pal along]

Description: Script from the WBAP-TV/NBC station in Fort Worth, Texas, covering a news story about former Dallas furniture salesman looking for a job with his pet lion cub in tow.
Date: July 30, 1959
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
open access

[News Script: Jury hears fired officers]

Description: Script from the WBAP-TV/NBC station in Fort Worth, Texas, covering a news story about Sheriff Bill Decker appearing in front of Dallas County's Grand Jury to testify against two deputies he fired.
Date: July 30, 1959
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
open access

[News Script: Kids]

Description: Script from the WBAP-TV/NBC station in Fort Worth, Texas, covering a news story about some children in the neighborhood, who are building a baseball diamond on a vacant weed-grown lot.
Date: July 30, 1959
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
open access

[News Script: Long swim lands woman in jail]

Description: Script from the WBAP-TV/NBC station in Fort Worth, Texas, covering a news story about former television personality June Bentley being forcibly removed from Lake Worth after swimming for five hours, in an ostensible suicide attempt.
Date: July 30, 1959
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
open access

[News Script: Trial decision delayed]

Description: Script from the WBAP-TV/NBC station in Fort Worth, Texas, covering a news story about an appeal trial for the assault-to-murder sentence of Roy Boatwright, Jr.
Date: July 30, 1959
Creator: WBAP-TV (Television station : Fort Worth, Tex.)
Partner: UNT Libraries Special Collections
open access

A Review of Potential Radionuclides Produced in Weapons Detonations

Description: ABS>Estimates have been made of what the probable radionuclides produced in weapons detoriations, including fission products and neutron-induced radionuclides in air, soils, and sea water will be. The nuclear and decay properties and some metabolic or biological properties of these nuclides are tabulated where available. Estimates are made of the amounts of the radionuclides produced in weapons detonations. Some radionuclides are discussed with respect to their particular biological interest from the standpoint of the hazard to man. (auth)
Date: July 30, 1959
Creator: Klement, Alfred W., Jr.
Partner: UNT Libraries Government Documents Department
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