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  Partner: UNT Libraries Government Documents Department
 Decade: 1980-1989
1/2 CREEP FRACTURE IN CERAMIC POLYCRYSTALS I. CREEP CAVITATION EFFECTS IN POLYCRYSTALLINE ALUMINA

1/2 CREEP FRACTURE IN CERAMIC POLYCRYSTALS I. CREEP CAVITATION EFFECTS IN POLYCRYSTALLINE ALUMINA

Date: September 1, 1980
Creator: Porter, J. R.; Blumenthal, W. & Evans, A. G.
Description: Fine grained polycrystalline alumina has been deformed in creep at high temperatures, to examine the evolution of cavities at grain boundaries. Cavities with equilibrium and crack-like morphologies have been observed, distributed non-uniformly throughout the material. The role of cavities during creep has been described. A transition from equilibrium to crack-like morphology has been observed and correlated with a model based on the influence of the surface to boundary diffusivity ratio and the local tensile stress. The contribution of cavitation to the creep rate and total creep strain has been analyzed and excluded as the principal cause of the observed non-linear creep rate,
Contributing Partner: UNT Libraries Government Documents Department
3-D computer simulations of EM field sin the APS vacuum chamber. Part 2: Time-domain analysis

3-D computer simulations of EM field sin the APS vacuum chamber. Part 2: Time-domain analysis

Date: January 20, 1989
Creator: Chou, W.
Description: Our simulations suggest that the strong peak around 4 GHz in the narrow gap observed in the measurements is generated by TE modes. Therefore, one should not worry about this peak insofar as the coupling impedance is concerned. On the other hand, some discrepancies between our simulations and the measurements are noticed and remain to be resolved.
Contributing Partner: UNT Libraries Government Documents Department
6 GeV light source project cost estimating procedure

6 GeV light source project cost estimating procedure

Date: October 23, 1985
Creator: unknown
Description: To maintain uniformity in estimating the cost requirements of the various components of the 6 GeV Light Source, the following procedure will be used by all the task groups. The procedure uses a Work Breakdown Structure (VBS) to break down the project into manageable, easy to estimate, components. The project is first broken down into major tasks or categories. Then each major division is continuously subdivided until the desired level of detail is achieved. This can be shown best by using the example of the WBS of the Aladdin Upgrade Project, excerpts of which are included in Appendix A.
Contributing Partner: UNT Libraries Government Documents Department
6 GeV synchrotron x-ray source: Conceptual design report. Supplement A - characteristics of the insertion devices for the 6 GeV synchrotron source

6 GeV synchrotron x-ray source: Conceptual design report. Supplement A - characteristics of the insertion devices for the 6 GeV synchrotron source

Date: March 1, 1986
Creator: unknown
Description: Historically, synchrotron radiation (SR) has been obtained primarily from bending-magnet (BM) sources. These continuous sources of electromagnetic radiation have contributed in a major way to our understanding of the structure and dynamics of biological, chemical and material systems. During the past few years, newer sources of SR based on sophisticated periodic magnetic structures, called insertion devices (IDs), have been developed. The electromagnetic radiation from these IDs can be used as a very versatile probe in scientific and technological research which is far superior to that based on a BM source.
Contributing Partner: UNT Libraries Government Documents Department
7-GeV Advanced Photon Source : Conceptual Design Report

7-GeV Advanced Photon Source : Conceptual Design Report

Date: April 1987
Creator: Argonne National Laboratory
Description: During the past decade, synchrotron radiation emitted by circulating electron beams has come into wide use as a powerful, versatile source of x-rays for probing the structure of matter and for studying various physical processes. Several synchrotron radiation facilities with different designs and characteristics are now in regular operation throughout the world, with recent additions in this country being the 0.8-GeV and 2.5-GeV rings of NSLS at Brookhaven National Laboratory. However, none of the operating facilities has been designed to use a low-emittance, high-energy stored beam, together with modern undulator devices, to produce a large number of hard x-ray beams of extremely high brilliance. This document is a proposal to the Department of Energy to construct and operate high-energy synchrotron radiation facility at Argonne National Laboratory. We have now chosen to set the design energy of this facility at 7.0 GeV, with the capability to operate at up to 7.5 GeV.
Contributing Partner: UNT Libraries Government Documents Department
15 Mile Road/Edison Corridor Sewer Tunnel Failure Study, Detroit Area, Michigan

15 Mile Road/Edison Corridor Sewer Tunnel Failure Study, Detroit Area, Michigan

Date: January 1981
Creator: Albert, Dick
Description: Partial abstract: "The study consisted of field and laboratory investigations, construction evaluation, and geotechnical and structural analyses to determine the cause(s) of distress and failure of a 2600-ft section of 12-ft 9-in. diameter concrete-lined sanitary sewer tunnel in the Detroit, Mich., area. [...] The report includes summaries of all pertinent construction records, results of all pertinent past and current field and laboratory tests on construction and geotechnical materials, and detailed geotechnical and structural analyses based on observed conditions and measured parameters."
Contributing Partner: UNT Libraries Government Documents Department
30 MJ superconducting magnetic energy storage stabilizing coil. Final report for construction

30 MJ superconducting magnetic energy storage stabilizing coil. Final report for construction

Date: March 1, 1983
Creator: unknown
Description: This report covers Phase II, Fabrication and Delivery of the 30 MJ Superconducting Magnetic Energy Storage Stabilizing Coil. A history of the manufacturing and assembly phase of the magnet is presented. Major problems and solutions are summarized, and illustrations of the major operations are provided. The Quality Assurance program is described with a listing of all nonconformance reports. Design documentation is provided, including a Design Document Index, monthly progress reports, and a list of papers given on the project. Appendices to the report contain copies of released and revised design calculations, test reports, assembly procedure, and nonconformance reports and engineering dispositions.
Contributing Partner: UNT Libraries Government Documents Department
90-Ton Triple Cylinder Jack Design

90-Ton Triple Cylinder Jack Design

Date: September 26, 1988
Creator: Jaques, Al & /Fermilab
Description: The three D-Zero cryostats (2 EC and 1 CC) will rest on three carriages which in turn ride on a set of hardened ways in the center beam. A pair of Tychoway rollers will be fitted to each of the four corners of the three carriages to provide the rolling support. In the final design, the two EC cryostats will be able to roll out and away from the CC cryostat in order to provide access to the space between each cryostat for maintenance and repairs. The cryostat will be frequently accessed, about once a month. during a collider run. The heaviest cryostat weighs about 360 tons. The large roller weight in one position for such a long period of time, created a concern about the rollers dimpling the hardened ways or even suffering permanent deformations themselves. There is also the possibility that the vertical position of the cryostat will need to be adjusted to align it with the beam line or that the carriage and cryostat will have to be lifted to remove and service the rollers. A device or system was needed to (1) relieve the weight of the cryostats from the rollers and the hardened ways, and ...
Contributing Partner: UNT Libraries Government Documents Department
209-E Upgrades

209-E Upgrades

Date: February 4, 1985
Creator: Merrill, B. J. & DeMyer, J. J.
Description: Pacific Northwest Laboratory has initiated a review of the Safeguards and Security systems at the Critical Mass Laboratory with regards to determining appropriate upgrading actions that assure that an effective and efficient Safeguards and Security posture consistent with DOE-RL policies, procedures, and priorities is effected. As a result of this review, PNL has concluded that specific upgrades are required at CML that provide a demonstrated enhancement to the overall security posture of the facility and are based upon prudent expenditures of government funds. It was further concluded that additional recommended upgrades provide minimal improvement to the overall security system at a significant outlay of funds.
Contributing Partner: UNT Libraries Government Documents Department
350 MW(t) design fuel cycle selection. Revision 1

350 MW(t) design fuel cycle selection. Revision 1

Date: January 1986
Creator: Lane, R. K.; Lefler, W. & Shirley, G.
Description: This document discusses the results of this evaluation and a recommendation to retain the graded fuel cycle in which one-half of the fuel elements are exchanged at each refueling. This recommendation is based on the better performance of the graded cycle relative to the evaluation criteria of both economics and control margin. A choice to retain the graded cycle and a power density of 5.9 MW/m{sup 3} for the upcoming conceptual design phase was deemed prudent for the following reasons: the graded cycle has significantly better economics, and essentially the same expected availability factor as the batch design, when both are evaluated against the same requirements, including water ingress; and the reduction in maximum fuel pin power peaking in the batch design compared to the graded cycle is only a few percent and gas hot streaks are not improved by changing to a batch cycle. The preliminary 2-D power distribution studies for both designs showed that maximum fuel pin power peaking, particularly near the inner reflector, was high for both designs and nearly the same in magnitude. 10 figs., 9 tabs.
Contributing Partner: UNT Libraries Government Documents Department
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