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Corrosion Behavior of Reactor Materials in Fluoride Salt Mixtures
Molten fluoride salts, because of their radiation stability and ability to contain both Th and U, offer important advantages as high-temperature fuel solutions for nuclear reactors and as media suitable for nuclear fuel processing. Both applications have stimulated experimental and theoretical studies of the corrosion processes by which molten salt mixtures attack potential reactor materials. Corrosion experiments with fluoride salts which were conducted in support of the Molten-Salt Reactor E xperiment and analytical methods employed to interpret corrosion and masstransfer behavior in this reactor system are discussed. The products of corrosion of metals by fluoride melts are soluble in the molten salt; accordingly passivation is precluded and corrosion depends directly on the thermodynamic driving force of the corrosion reactions. Compatibility of the container metal and molten salt, therefore, demands the selection of salt constituents which are not appreciably reduced by useful structural alloys and the development of container materials whose components are in near thermodynamic equilibrium with the salt medium. Utilizing information gained in corrosion testing of commercial alloys and in fundamental interpretations of the corrosion process, an alloy development program was conducted to provide a high temperature container material that combined corrosion resistance with useful mechanical properties. The program …
Date:
September 19, 1962
Creator:
DeVan, J. H. & Evans, R. B., III
Object Type:
Report
System:
The UNT Digital Library
Marketing of coal mining equipment. Evaluation of present techniques: suggestions to aid commercialization. Final report
This report is an examination of the equipment preferences and decision-making methodology of the coal industry. The prime purpose is to indicate directions in which equipment research might proceed and also to indicate methods by which investment in new, more productive mining equipment could be encouraged. In addition to this, an investigation of the research and development decisions of major mining equipment manufacturers was conducted. The findings can best be condensed into three categories: needs for equipment in underground mining, needs for equipment in surface mining, and the purchase decision by coal mine operators.
Date:
September 19, 1980
Creator:
unknown
Object Type:
Report
System:
The UNT Digital Library
Military Justice: A Summary of its Legislative and Judicial Development
This report discusses the military justice system and legislation and judicial decisions regarding it.
Date:
September 19, 1969
Creator:
Ujevich, Robert M.
Object Type:
Report
System:
The UNT Digital Library
[News Script: Gold Diggers]
Script from the WBAP-TV/NBC station in Fort Worth, Texas relating a news story.
Date:
September 19, 1968
Creator:
WBAP-TV (Television station : Fort Worth, Tex.)
Object Type:
Script
System:
The UNT Digital Library
CERENKOV RADIATION INTENSITY CALCULATIONS FOR Sr$sup 90$ AND Co$sup 60$ IN WATER
A method for calculating Cherenkov radiation intensity from an initial electron energy distribution is presented. The Cherenkov radiation intensity from 1 curie of Sr/sup 90/ in secular equilibrium with Y/sup 90/ in water was calculated from the beta energy spectrum to illustrate the use of the method for a pure beta emitter. The Cherenkov radiation intensity from 1 curie of Co/sup 60/ in water was calculated from the Compton electron energy spectrum to illustrate the use of the method for a gamma emitter. The steps necessary to obtain the Compton electron energy spectrum from a gamma emitter are indicated. (auth)
Date:
September 19, 1961
Creator:
Wymer, R.G. & Biggers, R.E.
Object Type:
Report
System:
The UNT Digital Library
Effect of strain-gage surface preparation techniques on beryllium
Beryllium is a metal sensitive to machining damage, causing a loss in mechanical properties. Since some mechanical abrading is often used in surface preparation for mounting strain gages, it is desirable to know whether the abrading produces flaws. Metallographic study of beryllium subjected to four different surface preparation methods was carried out. It was determined that the gentle abrading necessary for affixing strain gages produced a negligible density and depth of flaws and did not lower the mechanical properties. 5 figures, 2 tables.
Date:
September 19, 1977
Creator:
Hanafee, J. E.; Hughes, Jr., J. W. & McInturff, S. A.
Object Type:
Report
System:
The UNT Digital Library
Performance of Argus as a laser fusion facility
During the fifteen months that the Argus laser facility has been operating we have had two primary goals. These are: (1) to provide focusable, well characterized, high power beams for laser fusion experiments and (2) to further understand the propagation of high power and energy pulses. The propagation experiments have already led to increases in the laser output power and system reliability. Pulses appropriate for advanced targets are shaped to optimize the compression and heating of the target. In general they stress the laser in both limits of energy and power. In this work several results significant to the laser fusion program were realized. The neutron output of fusion targets increased by almost two orders of magnitude to more than 10/sup 9/ neutron/shot. An improved beam propagation technique (image relaying) was developed and partially implemented. It increased the focusable output power for short pulses (30-100 ps) to more than 4.0 TW. More than one kilojoule/beam was extracted from the laser in a high quality beam in a one nanosecond Gaussian pulse. A complex two step optical pulse was generated and successfully amplified to peak powers of more than 3.0 TW. The most recent of the system upgrades are complete image …
Date:
September 19, 1977
Creator:
Speck, D. R.; Simmons, W. W.; Hunt, J. T.; Boyle, M. J.; Rainer, F.; Storm, E. K. et al.
Object Type:
Article
System:
The UNT Digital Library
Use of x-ray imaging on laser fusion experiments
A variety of x-ray imaging techniques have been used to study the absorption, transport and implosion characteristics of exploding pusher microsphere targets irradiated with 1.06 ..mu..m light. Multichannel grazing incidence reflection microscopy, zone plate coded imaging and spatially resolved x-ray spectroscopy have observed the thermal and suprathermal x-ray emission associated with these phenomena. A second generation of x-ray imaging devices, designed for forthcoming high density implosion experiments, including axisymmetric x-ray microscopes and 1- and 2-D crystal line imaging devices, will also be briefly discussed.
Date:
September 19, 1977
Creator:
Boyle, M. J.; Attwood, D. T.; Ceglio, N. M.; Koppel, L. N.; Slivinsky, V. W.; Larsen, J. T. et al.
Object Type:
Article
System:
The UNT Digital Library
Austenitic stainless steels for cryogenic service
Presently available information on austenitic Fe-Cr-Ni stainless steel plate, welds, and castings for service below 77 K are reviewed with the intent (1) of developing systematic relationships between mechanical properties, composition, microstructure, and processing, and (2) of assessing the adequacy of these data bases in the design, fabrication, and operation of engineering systems at 4 K.
Date:
September 19, 1985
Creator:
Dalder, E.N.C. & Juhas, M.C.
Object Type:
Report
System:
The UNT Digital Library
Selective generation and extraction of low emittance electrons from plasmas: A new concept for E-beam cathodes
It is shown that hollow cathode discharges can operate in a mode characterized by a two-component electron energy distribution: bulk electrons with a thermal distribution with a temperature of a few electron volts, and a component of fast electrons with an energy of about 30 eV and a thermal spread of about 0.1 eV. Measurements of both parallel and perpendicular energy spreads confirm the existence of fast, low energy spread electrons. Selective extraction of these electrons can form the basis of a high current, high brightness electron gun which could be well suited for EBIS applications. 8 refs., 4 figs., 1 tab.
Date:
September 19, 1991
Creator:
Hershcovitch, A.
Object Type:
Article
System:
The UNT Digital Library
[News Clip: Lott]
Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date:
September 19, 1994, 6:00 p.m.
Creator:
KXAS-TV (Television station : Fort Worth, Tex.)
Object Type:
Video
System:
The UNT Digital Library
The Oklahoma Democrat. (Altus, Okla.), Vol. 1, No. 27, Ed. 1 Thursday, September 19, 1907
Weekly newspaper from Altus, Oklahoma Territory that includes local, territorial, and national news along with advertising.
Date:
September 19, 1907
Creator:
Williams, Bob
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Mangum Star. (Mangum, Okla. Terr.), Vol. 14, No. 11, Ed. 1 Thursday, September 19, 1901
Weekly newspaper from Mangum, Oklahoma that includes local, territorial, and national news along with advertising.
Date:
September 19, 1901
Creator:
Echols, R. C.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Oklahoma Democrat (Altus, Okla.), Vol. 5, No. 28, Ed. 1 Thursday, September 19, 1912
Weekly newspaper from Altus, Oklahoma that includes local, state, and national news along with advertising.
Date:
September 19, 1912
Creator:
Kirk, Brant
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Oklahoma Leader (Guthrie, Okla.), Vol. 28, No. 35, Ed. 1 Thursday, September 19, 1918
Weekly newspaper from Guthrie, Oklahoma that includes local, state, and national news along with advertising.
Date:
September 19, 1918
Creator:
Niblack, Leslie G.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Oklahoma State Register (Guthrie, Okla.), Vol. 28, No. 22, Ed. 1 Thursday, September 19, 1918
Weekly newspaper from Guthrie, Oklahoma that includes local, state, and national news along with advertising.
Date:
September 19, 1918
Creator:
Golobie, John
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Weekly Oklahoma State Capital. (Guthrie, Okla.), Vol. 8, No. 22, Ed. 1 Saturday, September 19, 1896
Weekly newspaper from Guthrie, Oklahoma Territory that includes local, territorial, and national news along with advertising.
Date:
September 19, 1896
Creator:
Greer, Frank H.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Mangum Star And Southwest Eagle (Mangum, Okla.), Vol. 31, No. 14, Ed. 1 Thursday, September 19, 1918
Weekly newspaper from Mangum, Oklahoma that includes local, state, and national news along with advertising.
Date:
September 19, 1918
Creator:
Jessee, Elmer V.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Taloga Times. (Taloga, Okla.), Vol. 16, No. 9, Ed. 1 Thursday, September 19, 1912
Weekly newspaper from Taloga, Oklahoma that includes local, state, and national news along with advertising.
Date:
September 19, 1912
Creator:
Dasher, Arthur J.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Altus Weekly News (Altus, Okla.), Vol. 19, No. 30, Ed. 1 Thursday, September 19, 1918
Weekly newspaper from Altus, Oklahoma that includes local, county, state, and national news along with advertising.
Date:
September 19, 1918
Creator:
Orr, J. P.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Guymon Herald. (Guymon, Okla.), Vol. 28, No. 29, Ed. 1 Thursday, September 19, 1918
Weekly newspaper from Guymon, Oklahoma that includes local, state, and national news along with advertising.
Date:
September 19, 1918
Creator:
Denny, J. Q.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Crowder City Guardian (Crowder, Oklahoma), Vol. 8, No. 52, Ed. 1 Friday, September 19, 1913
Weekly newspaper from Crowder, Oklahoma that includes local, state, and national news along with advertising.
Date:
September 19, 1913
Creator:
Barrow, A. E.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
The Kiowa Sentinel. (Kiowa, Indian Terr.), Vol. 4, No. 36, Ed. 1 Thursday, September 19, 1907
Weekly newspaper from Kiowa, Indian Territory that includes local, territorial, and national news along with advertising.
Date:
September 19, 1907
Creator:
Vernon, John C.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History
Cushing Independent. (Cushing, Okla.), Vol. 6, No. 41, Ed. 1 Thursday, September 19, 1907
Weekly newspaper from Cushing, Oklahoma Territory that includes local, territorial, and national news along with advertising.
Date:
September 19, 1907
Creator:
Holland, Al. H.
Object Type:
Newspaper
System:
The Gateway to Oklahoma History