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Thin Wall Cast Iron: Phase II

Description: The development of thin-wall technology allows the designers of energy consuming equipment to select the most appropriate material based on cost/material properties considerations, and not solely on density. The technology developed in this research project will permit the designers working for the automotive industry to make a better informed choice between competing materials and thin wall cast iron, thus decreasing the overall cost of the automobile.
Date: July 21, 2005
Creator: Stefanescu, Doru M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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CLEAN CAST STEEL TECHNOLOGY: DETERMINATION OF TRANSFORMATION DIAGRAMS FOR DUPLEX STAINLESS STEEL.

Description: Duplex stainless steels (DSS) constitute both ferrite and austenite as a matrix. Such a microstructure confers a high corrosion resistance with favorable mechanical properties. However, intermetallic phases such as sigma () and chi () can also form during casting or high-temperature processing and can degr… more
Date: September 18, 2005
Creator: Chumbley. L., S.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Sustainable Steelmaking Using Biomass and Waste Oxides (TRP9902)

Description: A new process for ironmaking was proposed to employ renewable energy in the form of wood charcoal to produce hot metal. The process was aimed at the market niche of units ranging from 400,000 to 1 million tons of hot metal a year. In the new process, a Rotary Hearth Furnace (RHF) would be combined with a smelter to produce hot metal. This combination was proposed to overcome the technical hurdles of energy generation in smelters and the low productivity of RHFs, and also allow the use of wood c… more
Date: September 30, 2004
Creator: Fruehan, Richard J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Final Report: Wetted Cathodes for Low-Temperature Aluminum Smelting

Description: A low-temperature aluminum smelting process being developed differs from the Hall-Heroult process in several significant ways. The low-temperature process employs a more acidic electrolyte than cryolite, an alumina slurry, oxygen-generating metal anodes, and vertically suspended electrodes. Wetted and drained vertical cathodes are crucial to the new process. Such cathodes represent a significant portion of the capital costs projected for the new technology. Athough studies exist of wetted catho… more
Date: September 30, 2002
Creator: Brown, Craig W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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NOx Emission Reduction by Oscillating Combustion

Description: High-temperature, natural gas-fired furnaces, especially those fired with preheated air, produce large quantities of NO{sub x} per ton of material processed. Regulations on emissions from industrial furnaces are becoming increasingly more stringent. In addition, competition is forcing operators to make their furnaces more productive and/or efficient. Switching from preheated air to industrial oxygen can increase efficiency and reduce NO{sub x}, but oxygen is significantly more costly than air a… more
Date: March 31, 2004
Creator: Wagner, John C.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Enabling Tool for Innovative Glass Applications - Final Report

Description: The use of abrasive waterjet (AWJ) cutting systems in the industrial sector has been limited to applications that are difficult to machine using conventional methods. A major factor for this limited use is the high cost of the garnet abrasive currently used. Initial studies indicated that glass can be processed to produce particles with the desired characteristics at a fraction of the existing price of garnet. Inexpensive abrasive waterjet cutting systems would allow a wider array of glass prod… more
Date: November 16, 2005
Creator: Gillis, James M.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Reducing the Variability of HSLA Sheet Steels (TRP 9807)

Description: The sensitivity of the yield strength of a 70 ksi HSLA steel to changes in processing variables was investigated using a laboratory hot-rolling mill. Along with a detailed examination of the hot-rolled microstructures, auxiliary experiments were conducted to determine how the decomposition of the austenite phase and the occurrence of ultra-fine precipitate formation could account for the yield strength variability. A set of guidelines was recommended for the reduction of the yield strength vari… more
Date: March 12, 2004
Creator: DeArdo, Anthony J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Inert Anode Life in Low Temperature Reduction Process

Description: The production of aluminum metal by low temperature electrolysis utilizing metal non-consumable anodes and ceramic cathodes was extensively investigated. Tests were performed with traditional sodium fluoride--aluminum fluoride composition electrolytes, potassium fluoride-- aluminum fluoride electrolytes, and potassium fluoride--sodium fluoride--aluminum fluoride electrolytes. All of the Essential First-Tier Requirements of the joint DOE-Aluminum Industry Inert Anode Road Map were achieved and t… more
Date: June 30, 2005
Creator: Bradford, Donald R.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Development of Screenable Pressure Sensitive Adhesives

Description: An industrial research area of high activity in recent years has been the development of pressure sensitive adhesive (PSA) products that do not interfere with the processing of post-consumer waste. The problem of PSA contamination is arguably the most important technical challenge in expanding the use of recycled fiber. The presence of PSAs in recovered paper creates problems that reduce the efficiency of recycling and papermaking operations and diminish product quality. The widespread use of P… more
Date: November 29, 2003
Creator: Severtson, Steven J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Novel Catalytic Membrane Reactors

Description: There are many industrial catalytic organic reversible reactions with amines or alcohols that have water as one of the products. Many of these reactions are homogeneously catalyzed. In all cases removal of water facilitates the reaction and produces more of the desired chemical product. By shifting the reaction to right we produce more chemical product with little or no additional capital investment. Many of these reactions can also relate to bioprocesses. Given the large number of water-organi… more
Date: October 1, 2010
Creator: Stuart Nemser, PhD
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Louisiana Industrial Assessment Center--Final Technical Report

Description: This is the Final Report for the Louisiana Industrial Assessment Center for the period of 9/1/2002 through 11/30/2006, although we were still gathering data through 02/16/2007. During this period, our Industrial Assessment Center completed 109 energy assessments for manufacturing firms in our area, offered 3 Save Energy Workshops, taught 26 students (9 graduate and 17 undergraduate) energy management savings techniques and offered an Energy Management Graduate class three times. These 109 energ… more
Date: October 17, 2007
Creator: Kozman, Theodore A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Carpet As An Alternative Fuel in Cement Kilns

Description: Approximately 5 billion lbs of carpet will be removed from buildings in the US each year for the foreseeable future. This carpet is potentially a valuable resource because it contains plastic in the face of the carpet that can be re-used. However, there are many different types of carpet, and at least four major different plastics used to make the face. The face is woven through a backing fabric and held in place by a “glue” that is in most cases a latex cross-linked polymer which is heavily lo… more
Date: February 6, 2007
Creator: Realff, Matthew J
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Plant Line Trial Evaluation of Viable Non-Chromium Passivation Systems for Electrolytin Tinplate, ETP (TRP 9911)

Description: Plant trial evaluations have been completed for two zirconium-based, non-chromium passivation systems previously identified as possible alternatives to cathodic dichromate (CDC) passivation for electrolytic tinplate (ETP). These trials were done on a commercial electrolytic tin plating line at Weirton Steel and extensive evaluations of the materials resulting from these trials have been completed. All this was accomplished as a collaborative effort under the AISI Technology Roadmap Program and … more
Date: June 30, 2003
Creator: Sinsel, John A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Future Steelmaking Processes: Final Report

Description: There is an increasing demand for an ironmaking process with lower capital cost, energy consumption and emissions than a blast furnace. It is the hypothesis of the present work that an optimized combination of two reasonable proven technologies will greatly enhance the overall process. An example is a rotary hearth furnace (RHF) linked to a smelter (e.g., AISI, HIsmelt). The objective of this research is to select promising process combinations, develop energy, materials balance and productivit… more
Date: September 20, 2004
Creator: Fruehan, R. J.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Final Technical Report: Intensive Quenching Technology for Heat Treating and Forging Industries

Description: Intensive quenching (IQ) process is an alternative way of hardening (quenching) steel parts through the use of highly agitated water and then still air. It was developed by IQ Technologies, Inc. (IQT) of Akron, Ohio. While conventional quenching is usually performed in environmentally unfriendly oil or water/polymer solutions, the IQ process uses highly agitated environmentally friendly water or low concentration water/mineral salt solutions. The IQ method is characterized by extremely high coo… more
Date: December 21, 2005
Creator: Aronov, Michael A.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Recovery of Valuable Chlorosilane Intermediates by a Novel Waste Conversion Process

Description: From 1994 to 2001, Dow Corning studied a waste recycling process to recover direct process residues (DPR) resulting from the production of silicone precursors. Over the course of eight years, Dow Corning constructed and operated a pilot plant, a small scale commercial plant, and a full scale plant. The process reacts DPR with hydrogen and chlorosilane monomers at high temperature and high pressure. The process converted 85% of the DPR to valuable chlorosilane monomers such as dimethyldichlorosi… more
Date: June 20, 2002
Creator: Brinson, J. Ashley
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Stress-Rupture, Overstressing and a Proposed New Methodology to Assess the Durability and Reliability of Ceramic Matrix Composites at Elevated Temperatures

Description: A new testing strategy is proposed to assess the durability and reliability of non- oxide continuous fiber-reinforced ceramic composites for high temperature structural applications. The strategy is based on determining the reliability (probability of failure) of these materials when subjected to random loading schedules consisting of load and temperature spikes that are superimposed on otherwise constant stress and temperature histories. The frequency and magnitude of the load and temperature … more
Date: July 5, 1999
Creator: Lara-Curzio, E.
Item Type: Refine your search to only Article
Partner: UNT Libraries Government Documents Department
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Recovery of Valuable Chlorosilane Intermediates by a Novel Waste Conversion Process, Phase IIIB (Progress)

Description: From June 1998 through September 1999, direct process residue (DPR, a waste byproduct) hydrogenolysis has been studied at a large pilot plant within Dow Corning's Carrollton, KY, facility. The system reacts filtered DPR with chlorosilane monomers at high temperature and pressure. The process routinely demonstrates DPR conversions from 59% to 89% on a monthly basis. The reaction product contains high concentrations of valuable monomers such as dimethyldichlorosilane and methyldichlorosilane. An … more
Date: March 31, 2000
Creator: Anderson, Kurt E.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Spray Forming Aluminum - Final Report (Phase II)

Description: The U.S. Department of Energy - Office of Industrial Technology (DOE) has an objective to increase energy efficient and enhance competitiveness of American metals industries. To support this objective, ALCOA Inc. entered into a cooperative program to develop spray forming technology for aluminum. This Phase II of the DOE Spray Forming Program would translate bench scale spray forming technology into a cost effective world class process for commercialization. Developments under DOE Cooperative A… more
Date: July 8, 1999
Creator: Leon, D. D.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Development of Lead-Free Copper Alloy-Graphite Castings

Description: In this project, graphite is used as a substitute for lead in order to maintain the machinability of plumbing components at the level of leaded brass. Graphite dispersed in Cu alloy was observed to impart good machinability and reduce the sizes of chips during machining of plumbing components in a manner similar to lead. Copper alloys containing dispersed graphite particles could be successfully cast in several plumbing fixtures which exhibited acceptable corrosion rate, solderability, platabil… more
Date: October 1, 1999
Creator: Rohatgi, P. K.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Low NOx Burner Development Program - Final Report - 09/15/1996 - 09/30/2000

Description: This report describes the work performed to develop and demonstrate the VISTA combustor. The development effort was planned for three phases. Laboratory testing at a 1.5 and 6 MMBtu/hr scale was performed at thermo Power Corporation during the first phase. Also during the first phase, analytic modeling was performed to guide the design modifications evaluated in the experimental testing. Toward the end of the first phase, John Zink Company entered the program to participate in the design, evalu… more
Date: September 30, 2000
Creator: McClaine, Andrew W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Comparison of Advanced Distillation Control Methods, Final Technical Report

Description: Detailed dynamic simulations of three industrial distillation columns (a propylene/propane splitter, a xylene/toluene column, and a depropanizer) have been used to evaluate configuration selections for single-ended and dual-composition control, as well as to compare conventional and advanced control approaches. In addition, a simulator of a main fractionator was used to compare the control performance of conventional and advanced control. For each case considered, the controllers were tuned by … more
Date: November 30, 2000
Creator: Riggs, James B.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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Elimination or Minimization of Oscillation Marks: A Path To Improved Cast Surface Quality

Description: Oscillation marks are the most recognizable feature of continuous casting and can be related to the subsurface defects that can be found on product rolled from continuous cast slabs. The purpose of this work was to develop strategies that can be used on industrial continuous casters to reduce oscillation mark depth and, in particular, to minimize the formation of hook type defects that are prevalent on ultra low carbon grades. The major focus of the work was on developing a technique to allow h… more
Date: December 17, 2007
Creator: Cramb, Alan W.
Item Type: Refine your search to only Report
Partner: UNT Libraries Government Documents Department
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