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open access

Damage Analysis and Fundamental Studies for Fusion Reactor Materials Development

Description: During this period work has encompassed: (a) development of electropotential drop techniques to monitor the growth of cracks in steel specimens for a variety of specimen geometries; (b) micromechanical modeling of fracture using finite element calculations of crack and notch-tip stress and strain fields; (3) examining helium effects on radiation damage in austenitic and ferritic stainless steels; (4) analysis of the degradation of the mechanical properties of austenitic stainless steels for the… more
Date: January 11, 1993
Creator: Odette, G. R. & Lucas, G. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Chemistry of coal-related microparticles

Description: A new type of electrodynamic balance was designed, constructed and applied to the study of the chemistry of macerals and the chemical reaction between CaO sorbent particles and SO[sub 2]. The single-particle device was coupled to a Raman spectrometer. With this balance a single electrically charged microparticle is suspended in visible and infrared laser beams by means of superposed ac and dc electrical fields. The apparatus was designed to permit gas flow through the chamber so that gas-solid … more
Date: January 11, 1993
Creator: Davis, E.J. & Krieger-Brockett, B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Requirements for characterization of DWPF canister welds and labels, and estimates of service life

Description: The Department of Energy has established specifications for the DWPF product, which require that the DWPF provide estimates of the service life of the canister label, provide assurance that the DWPF canister will be leaktight when shipped, demonstrate that the contents of the canistered waste form will not lead to internal corrosion of the canister. The DWPF has elected to meet these requirements, in part, by characterizing canisters produced in the facility during the Startup Test Program. Thi… more
Date: January 11, 1993
Creator: Plodinec, M.J.; Harbour, J.R. & Marra, S.L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Damage Analysis and Fundamental Studies for Fusion Reactor Materials Development. Technical Progredd Report, March 1, 1992--January 1, 1993

Description: During this period work has encompassed: (a) development of electropotential drop techniques to monitor the growth of cracks in steel specimens for a variety of specimen geometries; (b) micromechanical modeling of fracture using finite element calculations of crack and notch-tip stress and strain fields; (3) examining helium effects on radiation damage in austenitic and ferritic stainless steels; (4) analysis of the degradation of the mechanical properties of austenitic stainless steels for the… more
Date: January 11, 1993
Creator: Odette, G. R. & Lucas, G. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Requirements for characterization of DWPF canister welds and labels, and estimates of service life

Description: The Department of Energy has established specifications for the DWPF product, which require that the DWPF provide estimates of the service life of the canister label, provide assurance that the DWPF canister will be leaktight when shipped, demonstrate that the contents of the canistered waste form will not lead to internal corrosion of the canister. The DWPF has elected to meet these requirements, in part, by characterizing canisters produced in the facility during the Startup Test Program. Thi… more
Date: January 11, 1993
Creator: Plodinec, M. J.; Harbour, J. R. & Marra, S. L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Modeling microstructural evolution and the mechanical response of superplastic materials

Description: A model has been developed that accounts for grain growth during, superplastic flow and its subsequent influence on stress-strain-strain rate behavior. These studies are experimentally based and have involved two different types of superplastic materials -- a quasi-single phase metal (Coronze 638) and a microduplex metal (ultrahigh-carbon steel - UHCS). In both materials the kinetics of strain-enhanced grain growth have been studied as a function of strain, strain rate and temperature. An equat… more
Date: January 11, 1993
Creator: Lesuer, D. R.; Syn, C. K.; Cadwell, K. L. & Preuss, C. S.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
open access

The effect of gamma irradiation of the volatility and redox state of simulated DWPF high-level nuclear waste glasses

Description: Gamma-induced volatility of simulated DWPF high-level nuclear waste glasses is highly dependent upon the redox state of the glass. For oxidized glasses with an Fe{sup 2+}/(Fe{sup 2+} + Fe{sup 3+}) ratio < 0.1, no volatility was detected after gamma irradiation. Since the projected DWPF high-level radioactive waste glasses will be oxidized, no significant gamma-induced volatility is expected for these glasses upto the glass transition temperature. For larger pieces of highly-reduced DWPF simulat… more
Date: January 11, 1993
Creator: Harbour, J. R.; Marra, J. C. & Bibler, N. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Chemistry of coal-related microparticles. [Final report], 1 September 1989--31 August 1992

Description: A new type of electrodynamic balance was designed, constructed and applied to the study of the chemistry of macerals and the chemical reaction between CaO sorbent particles and SO{sub 2}. The single-particle device was coupled to a Raman spectrometer. With this balance a single electrically charged microparticle is suspended in visible and infrared laser beams by means of superposed ac and dc electrical fields. The apparatus was designed to permit gas flow through the chamber so that gas-solid … more
Date: January 11, 1993
Creator: Davis, E. J. & Krieger-Brockett, B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
captions transcript

[News Clip: Perot]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story by reporter Bob Sirkin about Ross Perot's campaign and membership drive for his organization, United We Stand America, which will monitor the voting records of elected officials. This story includes footage of Perot at a press conference, an excerpt from an interview with Larry King on CNN, an excerpt from a commercial series produced to promote the membership drive, and Perot playing Patsy Cline's song "… more
Date: January 11, 1993
Duration: 2 minutes 03 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
open access

Transportation: Environment, energy and the economy

Description: In the US, the transportation sector consumes over one quarter of the entire energy used, almost in its entirety as petroleum products, and in quantities greater than the total US domestic oil production. The transportation sector is responsible for a significant fraction of all emissions that either prevent US cities from achieving compliance with EPA air quality standards or have serious global change implications. Finally, the GDP (Gross Domestic Product) and employment due to the sector are… more
Date: January 11, 1993
Creator: Petrakis, L.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

The effect of gamma irradiation of the volatility and redox state of simulated DWPF high-level nuclear waste glasses

Description: Gamma-induced volatility of simulated DWPF high-level nuclear waste glasses is highly dependent upon the redox state of the glass. For oxidized glasses with an Fe[sup 2+]/(Fe[sup 2+] + Fe[sup 3+]) ratio < 0.1, no volatility was detected after gamma irradiation. Since the projected DWPF high-level radioactive waste glasses will be oxidized, no significant gamma-induced volatility is expected for these glasses upto the glass transition temperature. For larger pieces of highly-reduced DWPF simulat… more
Date: January 11, 1993
Creator: Harbour, J. R.; Marra, J. C. & Bibler, N. E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Nuclear interactions in high energy heavy ions and applications in astrophysics. [Dept. of Physics and Astronomy, Louisiana State Univ. , Baton Rouge]

Description: The overall objective is to study the mechanisms and the energy dependence of heavy ion fragmentation by studying the reactions of heavy ion projectiles (e.g. [sup 4]He, [sup 16]O, [sup 20]Ne, [sup 28]Si, [sup 56]Fe) in a variety of targets (H, He, C, Si, Cu, Pb) and at a number of beam energies exceeding 0.1 GeV/nucleon. The results have application to questions in high-energy nuclear astrophysics. Most of the discussion is on low-energy [sup 16]O,[sup 28]Si data analysis. The description incl… more
Date: January 11, 1993
Creator: Wefel, J.P. & Guzik, T.G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
open access

Nuclear interactions in high energy heavy ions and applications in astrophysics. Technical progress report, 1 April 1992--31 March 1993

Description: The overall objective is to study the mechanisms and the energy dependence of heavy ion fragmentation by studying the reactions of heavy ion projectiles (e.g. {sup 4}He, {sup 16}O, {sup 20}Ne, {sup 28}Si, {sup 56}Fe) in a variety of targets (H, He, C, Si, Cu, Pb) and at a number of beam energies exceeding 0.1 GeV/nucleon. The results have application to questions in high-energy nuclear astrophysics. Most of the discussion is on low-energy {sup 16}O,{sup 28}Si data analysis. The description incl… more
Date: January 11, 1993
Creator: Wefel, J. P. & Guzik, T. G.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
captions transcript

[News Clip: Skate Boards]

Description: B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: January 11, 1993, 6:00 p.m.
Duration: 35 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Football]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: January 11, 1993, 5:00 p.m.
Duration: 2 minutes 11 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Jackson]

Description: B-roll video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: January 11, 1993, 10:00 p.m.
Duration: 1 minute 33 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Perot]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: January 11, 1993, 5:00 p.m.
Duration: 2 minutes 03 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
captions transcript

[News Clip: Local Schools]

Description: Video footage from the KXAS-TV/NBC station in Fort Worth, Texas, to accompany a news story.
Date: January 11, 1993, 6:00 p.m.
Duration: 1 minute 49 seconds
Creator: KXAS-TV (Television station : Fort Worth, Tex.)
Item Type: Refine your search to only Video
Partner: UNT Libraries Special Collections
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