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in subjects: "Manufacturing"

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Exploding the myths about the fast breeder reactor

This paper discusses the facts and figures about the effects of conservation policies, the benefits of the Clinch River Breeder Reactor demonstration plant, the feasibility of nuclear weapons manufacture from reactor-grade plutonium, diversion of plutonium from nuclear plants, radioactive waste disposal, and the toxicity of plutonium. The paper concludes that the U.S. is not proceeding with a high confidence strategy for breeder development because of a variety of false assumptions.

Date: January 1, 1979

Creator: Burns, S.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

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 categori… more

Date: September 19, 1980

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Performance of trim coils made by a novel method

A precision, automated method of manufacturing trim coils based on printed circuit technology has been developed. Excellent quench performance and increased radiation resistance have been achieved in recently-tested models of sextupole trim coils developed for operation inside 40 mm-aperture SSC Main Collider dipoles. 6 refs., 2 figs.

Date: January 1, 1991

Creator: Wanderer, P.; Anerella, M.; Cottingham, J.; Ganetis, G.; Garber, M.; Ghosh, A. et al.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Alternative energy sources for non-highway transportation. Appendices

A planning study was made for DOE on alternate fuels for non-highway transportation (aircraft, rail, marine, and pipeline). The study provides DOE with a recommendation of what alternate fuels may be of interest to non-highway transportation users from now through 2025 and recommends R and D needed to allow non-petroleum derived fuels to be used in non-highway transportation. Volume III contains all of the references for the data used in the preliminary screening and is presented in 4 subvolume… more

Date: June 1, 1980

Item Type: Report

Partner: UNT Libraries Government Documents Department

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SNL initiatives in electronic fluxless soldering

Conventional soldering of electronic components generally requires the application of a chemical flux to promote solder wetting and flow. Chlorofluorocarbons (CFC) and halogenated solvents are normally used to remove the resulting flux residues. While such practice has been routinely accepted throughout the electronics industry, the environmental impact of hazardous solvents on ozone depletion will eventually limit or prevent their use. Solvent substitution or alternative technologies must be d… more

Date: January 1, 1991

Creator: Hosking, F. M.; Frear, D. R.; Vianco, P. T. & Keicher, D. M.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Research, development and demonstration of lead-acid batteries for electric vehicle propulsion. Annual report, 1979

This report describes work performed from October 1, 1978 to September 30, 1979. The approach for development of both the Improved State-of-the-Art (ISOA) and Advanced lead-acid batteries is three pronged. This approach concentrates on simultaneous optimization of battery design, materials, and manufacturing processing. The 1979 fiscal year saw the achievement of significant progress in the program. Some of the major accomplishments of the year are outlined. 33 figures, 13 tables. (RWR)

Date: June 1, 1980

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Using computer experiments to construct a cheap substitute for an expensive simulation model

There is widespread use of computer models as tools in scientific research. As surrogates for physical or behavioral systems, such models can be subjected to experimentation, the goal being to predict how the corresponding real system would behave under certain conditions. For long-running (expensive) model codes, there may be a severe limitation on the number of experiments that can reasonably be done. This motivates the construction of a fast-running (cheap) approximation to the original code… more

Date: January 1, 1991

Creator: Mitchell, T. & Morris, M.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Preliminary evaluation of hermetic JT/LJT/R P connector socket contact design

This report presents a precursory examination of a number of issues pertaining to socket contacts in hermetic connectors. The principal issues addressed are high-contact resistance and contact chatter (circuit discontinuities). Efforts examining the characteristics of the existing socket contact design, the possibility of connector/contact rework, quick-fix solutions, and contact redesigns are summarized.

Date: October 1, 1991

Creator: Baca, J. R. F.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Optical components for the Nova laser

In addition to its other characteristics, the Nova Laser Fusion facility may well be the largest precision optical project ever undertaken. Moreover, during the course of construction, concurrent research and development has been successfully conducted, and has resulted in significant advances in various technical areas, including manufacturing efficiency. Although assembly of the first two beams of Nova is just commencing, the optical production, including construction of the special facilitie… more

Date: May 17, 1982

Creator: Wallerstein, E.P.; Baker, P.C. & Brown, N.J.

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Oxide cathode lifetime improvements at RTNS-II

Results are reported for an ongoing effort to optimize D/sup +/ beam production by the MATS-III ion source used at the RTNS-II. The oxide cathode assembly originally designed for lower power operation has been modified and redesigned for higher electron current yield, longer life and serviceability. A factor of 2.5 has been gained in cathode lifetime due to these changes. The details of the changes and results and benefits in operation and performance are given. In addition, the technique used … more

Date: September 29, 1986

Creator: Massoletti, D.J.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Recovery and reuse of asphalt roofing waste. Final report

Burning of asphalt roofing waste as a fuel and incorporating asphalt roofing waste in bituminous paving were identified as the two outstanding resource recovery concepts out of ten studied. Four additional concepts might be worth considering under different market or technical circumstances. Another four concepts were rated as worth no further consideration at this time. This study of the recovery of the resource represented in asphalt roofing waste has identified the sources and quantities of … more

Date: February 2, 1984

Creator: Desai, S.; Graziano, G. & Shepherd, P.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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The environmentally safe battery

There are three aspects to an environmentally safe battery. The first deals with the manufacturing process, the second with the use of environmentally friendly materials, and the third with the disposal and/or recycling of spent units. In this paper, several ongoing programs at Sandia National Laboratories that relate to the environmentally conscious manufacturing of batteries, are discussed. The solvent substitution/elimination program is a two-pronged effort, aimed at identifying new solvents… more

Date: January 1, 1991

Creator: Levy, S. C. & Brown, N. E.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Method for producing nuclear fuel

Nuclear fuel is made by contacting an aqueous solution containing an actinide salt with an aqueous solution containing ammonium hydroxide, ammonium oxalate, or oxalic acid in an amount that will react with a fraction of the actinide salt to form a precipitate consisting of the hydroxide or oxalate of the actinide. A slurry consisting of the precipitate and solution containing the unreacted actinide salt is formed into drops which are gelled, calcined, and pressed to form pellets.

Date: April 24, 1981

Creator: Haas, P.A.

Item Type: Patent

Partner: UNT Libraries Government Documents Department

open access

Effect of manufacturing errors on field quality of the LBL SSC dipoles

A method is developed for determining the field aberrations resulting from specific kinds of manufacturing errors. This method is applied to the 40-mm i.d. dipoles under consideration at LBL, and also to similar ones with 30 and 50 mm i.d. The method is also applied to the CBA and Doubler/Saver magnets and the results compared with the measurements. The results obtained by this method are also compared with those obtained by assigning identical errors to the positions of the edges of all the co… more

Date: January 1, 1984

Creator: Meuser, R.B.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Summary of beryllium specifications

This report summarizes and compares the main beryllium properties included in producer, Department of Energy (formerly ERDA) facility, and government specifications. These data are tabulated in a sequence established primarily by increasing purity and secondarily by increasing tensile properties. Comments on formability and weldability are also included.

Date: February 17, 1978

Creator: Corle, R. R.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Hybrid microcircuit via development. Final report

Manufacturing processes were developed for making holes in alumina substrates, metallizing substrates on both sides and through the holes (vias), dry film photolithographing 6-..mu..m-thick gold to 127-..mu..m line widths and spacings, determining via quality, and protecting vias during HMC assembly processes. The few problems encountered were solved, and via technology is now established as a reliable and repeatable production technology for hybrid microcircuits. Via resistance on product HMCs… more

Date: June 1, 1980

Creator: Norwood, D.P.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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NREL PV AR D 11th review meeting, May 13--15, 1992, Denver Marriott City Center, Denver, Colorado

This is a collection of abstracts from papers presented at the National Renewable Energy Laboratory (NREL) Photovoltaic (PV) research and development review meeting held May 1992. Subject areas covered include solar cell and solar module manufacturing and development, materials, polycrystalline thin films, applications, amorphous silicon, solar cell performance and testing, crystalline silicon and other photovoltaic and safety perspectives. (GHH)

Date: January 1, 1992

Item Type: Article

Partner: UNT Libraries Government Documents Department

open access

Magnet cable manufacturing

The superconducting magnets used in the construction of particle accelerators are mostly built from flat, multistrand cables with rectangular or keystoned cross sections. The superconducting strands are mostly circular but a design of a cable made of preflattened wires was proposed a few years ago under the name of Berkeley flat; such cable shows some interesting characteristics. Another design consists of a few smaller precabled wires (e.g. 6 around 1). This configuration allows smaller filame… more

Date: July 1, 1985

Creator: Royet, J.

Item Type: Article

Partner: UNT Libraries Government Documents Department

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Heliostat mirror survey and analysis

The mirrors used on concentrating solar systems must be able to withstand severe and sustained environmental stresses for long periods of time if they are to be economically acceptable. Little is known about how commercially produced wet process silvered second surface mirrors will withstand the test of time in solar applications. Field experience in existing systems has shown that the performance of the reflective surface varies greatly with time and is influenced to a large extent by the cons… more

Date: September 1, 1979

Creator: Lind, M. A.; Buckwalter, C. Q.; Daniel, J. L.; Hartman, J. S.; Thomas, M. T. & Pederson, L. R.

Item Type: Report

Partner: UNT Libraries Government Documents Department

open access

Ocean thermal energy conversion (OTEC) power system development (PSD) II. Preliminary design report. Appendix II: supporting data

The trade studies, calculations, and reports which provide the rationale for design conclusions for the 10 MWe OTEC power system are presented in this volume. These appendices include: (1) system design and optimization model; (2) system off-design performance computer model; (3) seawater system dynamics; (4) system mechanical design studies; (5) electrical design studies; (6) structural design studies; (7) tube cleaner design report and proposed brush test program; (8) heat exchangers: mechani… more

Date: August 10, 1979

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Industrial process heat case studies. [PROSYS/ECONMAT code]

Commercially available solar collectors have the potential to provide a large fraction of the energy consumed for industrial process heat (IPH). Detailed case studies of individual industrial plants are required in order to make an accurate assessment of the technical and economic feasibility of applications. This report documents the results of seven such case studies. The objectives of the case study program are to determine the near-term feasibility of solar IPH in selected industries, ident… more

Date: May 1, 1980

Creator: Hooker, D.W.; May, E.K. & West, R.E.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Phase I of the automated array assembly task of the low cost silicon solar array project. Annual technical report. Motorola report No. 2258/4

Work performed to analyze, both technically and economically, the state of technology readiness for the automated production of solar cells and modules is compiled and reviewed critically. The long-term objective solar module characteristics include a selling price of less than $.50/peak watt and a mean-time-before-failure (MTBF) of 20 years in any terrestrial environment. While efficiency is important to attaining the cost goal, it is a most significant factor in array economics; accordingly, … more

Date: February 1, 1977

Creator: Coleman, M. G.; Pryor, R. A.; Grenon, L. A. & Lesk, I.A.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Mirror Fusion Test Facility-B (MFTF-B) axicell configuration: NbTi magnet system. Manufacturing/producibility final report. Volume 2

This Final MFTF-B Manufacturing/Producibility Report covers facilities, tooling plan, manufacturing sequence, schedule and performance, producibility, and lessons learned for the solenoid, axicell, and transition coils, as well as a deactivation plan, conclusions, references, and appendices.

Date: May 1, 1985

Creator: Ritschel, A.J. & White, W.L.

Item Type: Report

Partner: UNT Libraries Government Documents Department

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Improved methods to manufacture aluminum

A low-temperature (750{degrees}C) process to produce aluminum, employing dimensionally-stable electrodes, was investigated under this contract. Tests were carried out at a 10-ampere scale to develop a nonconsumable anode and to evaluate certain cell operating parameters. The work was carried out in conjunction with a NSF SBIR research grant to study the fundamental science aspects of the process. A scaled up 300-ampere cell was built and a preliminary test run was made with encouraging results.… more

Date: June 15, 1992

Item Type: Report

Partner: UNT Libraries Government Documents Department