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Relevant bibliographies by topics / "green" metallurgy / Dissertations / Theses

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Dissertations / Theses on the topic '"green" metallurgy'

Author: Grafiati

Published: 28 May 2022

Last updated: 31 July 2025

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1

Смоленніков, Денис Олегович, Денис Олегович Смоленников, Denys Olehovych Smolennikov, et al. "Environmentally friendly metallurgy in Ukraine." Thesis, Сумський державний університет, 2013. http://essuir.sumdu.edu.ua/handle/123456789/31624.

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According to the report of international analytical organization World Steel Association (WSA), Ukraine took the 10th place in the world’s steel production in 2012. Traditional steel smelting technology such as usage of Marten’s furnaces with natural gas as fuel causes 3 million tons of waste products a year per one furnace. Pollutants include NOx, CO, SOx and heavy metals dust. When you are citing the document, use the following link http://essuir.sumdu.edu.ua/handle/123456789/31624

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2

Leuenberger, Georg H. W. "Electrostatic density measurements in green-state P/M parts." Link to electronic thesis, 2003. http://www.wpi.edu/Pubs/ETD/Available/etd-0429103-125812/.

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Thesis (Ph. D.)--Worcester Polytechnic Institute.<br>Keywords: green-state P/M parts; inverse algorithm; conductivity-density relationship; nondestructive testing. Includes bibliographical references (p. 142-148).

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3

Gaboriault, Edward M. "The effects of fill-nonuniformities on the densified states of cylindrical green P/M compacts." Link to electronic thesis, 2003. http://www.wpi.edu/Pubs/ETD/Available/etd-0528103-105536.

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Thesis (M.S.)--Worcester Polytechnic Institute.<br>Keywords: powder metallurgy; density distribution; compaction modeling; compact; powder; compaction. Includes bibliographical references (p. 141-142).

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4

Gaboriault, Jr Edward M. "The Effects of Fill-Nonuniformities on the Densified States of Cylindrical Green P/M Compacts." Digital WPI, 2003. https://digitalcommons.wpi.edu/etd-theses/853.

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"We focus attention on single-punch compaction of metal powders in cylindrical dies. In one case, we consider solid cylindrical compacts, and take the die walls to be frictionless in order to isolate the effects of initial nonuniformities in powder fill on the final green density distribution of the compact. First, a model is introduced in which the die is filled with n distinct powders that occupy concentric annular regions within the die. The model requires that the balance of mass, the balance of momentum, and a realistic equation of state be satisfied in each region, and includes a plau

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5

Benzerrouk, Souheil. "Feasibility study of infrared detection of defects in green-state and sintered PM compacts." Link to electronic thesis, 2004. http://www.wpi.edu/Pubs/ETD/Available/etd-0427104-165155.

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Thesis (M.S.)--Worcester Polytechnic Institute.<br>Keywords: powder metallurgy; material evaluation; thermal imaging; NDE; IR radiation and detection; nondestructive testing; thermography; infrared imaging. Includes bibliographical references (p. 86-88).

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Benzerrouk, Souheil. "Active and Passive Thermography for the Detection of Defects in Green-State Powdermetallic Compacts." Digital WPI, 2011. https://digitalcommons.wpi.edu/etd-dissertations/386.

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"Despite its maturity, the powder metallurgy (PM) fabrication process continues to rely heavily on indirect methods to determine and predict the quality of its compacts early in the manufacturing line. Currently, the most comprehensive testing is performed on sintered parts, resulting in higher cost and increased waste. This dissertation addresses the need of early inspection by developing a novel approach whereby PM compacts are tested in the green-state without intrusion and with minimal cost per compact tested. The method is based on an infrared detection scheme with two fundamental embodim

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7

Leuenberger, Georg H. "Electrostatic Density Measurements in Green-State P/M Parts." Digital WPI, 2003. https://digitalcommons.wpi.edu/etd-dissertations/218.

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The goal of this research is to show the feasibility of detecting density variations in green-state powder metallurgy (P/M) compacts from surface voltage measurements. By monitoring a steady electric current flow through the sample and recording the voltages over the surface, valu-able information is gathered leading to the prediction of the structural health of the compacts. Unlike prior research that concentrated on the detection of surface-breaking and subsurface de-fects, the results presented in this thesis target the density prediction throughout the volume of the sample. The detection o

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8

Soviš, Jan. "Vývoj zkušební metody mechanických a technologických vlastností feritového prášku." Master's thesis, Vysoké učení technické v Brně. Fakulta strojního inženýrství, 2016. http://www.nusl.cz/ntk/nusl-241849.

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This master’s thesis deals with production of ferrite cores by the powder metallurgy technology in EPCOS s.r.o. Šumperk. Special importance is given to powder compaction process through uniaxial cold pressing in a rigid die. The production company is introduced in the first part and is followed by a study of pressure propagation in a powder bed during uniaxial pressing, then the analysis of critical phases of compaction process in terms of green cracks and compact’s defects follows. Main test methods of compact’s green strength are also presented. Significant part of the master’s thesis deals

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9

Dokter, Anija (Rachel). "Listening to birth : metallurgy, maternity, and vocality in the reproduction of the patriarchal state." Thesis, University of Cambridge, 2018. https://www.repository.cam.ac.uk/handle/1810/278616.

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Listening to Birth asserts that structures of power reproduce themselves by instituting particular modes of listening and sound production. Situating my research within feminist sound studies, I argue that meanings conjured around the audible, material bodies of women were carefully crafted by elites in antiquity, in order to construct gendered ideologies of kingship, civilisation, and nature. I examine these power dynamics as expressed in mythic and magical texts and iconographies, dating from the Bronze Age to later Roman antiquity. Throughout the thesis, I examine the development of symboli

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10

Vetta, Ivana Gabriella. "Slags and Ores: Metalworking in the Greek Early Iron Age Settlement at Zagora, Andros." Thesis, The University of Sydney, 2020. https://hdl.handle.net/2123/22304.

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Archaeological excavation of the Early Iron Age settlement at Zagora, Andros (Greece), from 1967 to 1974, yielded evidence of metalworking in various locations across the site, however no further analysis was carried out on the material. It is nevertheless clear from this data, as well as the results of archaeological surface survey conducted at the site in 2012, that metal production was an extensive industry at the site. Archaeometallurgical analysis has the potential to provide crucial information regarding metalworking at Zagora and can in turn, contribute to the broader understanding of t

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11

Condon, Peter D. "Characterization and prevention of acid rock drainage processes at the Greens Creek Mine, Admiralty Island, Alaska /." view abstract or download file of text, 1999. http://wwwlib.umi.com/cr/uoregon/fullcit?p9947972.

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Thesis (Ph. D.)--University of Oregon, 1999.<br>Typescript. Includes vita and abstract. Includes bibliographical references (leaves 309-315). Also available for download via the World Wide Web; free to University of Oregon users. Address: http://wwwlib.umi.com/cr/uoregon/fullcit?p9947972.

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12

Philip, Denny K. "Fabrication of green and sintered Al: Al2O3 composites using gel-casting and powder metallurgy technique." Thesis, 2013. http://ethesis.nitrkl.ac.in/4959/1/211CR1042.pdf.

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An effort had been made to fabricate composite of (1-x) wt% Al: x wt % Al2O3 (where x = 0, 10, 20 30, 40, and 50) using both gel casting and powder metallurgy techniques To the best of our knowledge, there was no such literature available on Al-Al2O3 composites prepared through gel-casting technique. Prior to gel-casting zeta-potential, concentration of deflocculating agent, and viscosity were optimized. A mould was designed and fabricated and a new processing route was employed to produce a homogeneous green body which was successful. Microstructure implies that the sintered body was highly p

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13

Habib, FOUAD. "A Finite Element Model for Ejection of Green Parts After PM Compaction." Thesis, 2008. http://hdl.handle.net/1974/1542.

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The present study describes the development of an FE model of tooling during production of a transmission gear. Results of the simulation at the puck/die interface during ejection examine the behavior of friction. Machine component deflections under pressure and areas of wear/binding are also predicted. The tooling was developed and modeled in Abaqus, an FE pre- and post-processor. A metal PM (Powder Metallurgy) puck is simulated from the point at the end of compaction, and then at several positions during ejection. A test setup was designed and built. The apparatus will be used to create iron

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14

Beck, Geoffrey. "ON A NOVEL METHOD OF INCORPORATING AN INTERNAL STRUCTURE INTO GREEN POWDER METALLURGY COMPACTS USING DIE COMPACTION." 2012. http://hdl.handle.net/10222/15178.

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A novel method of producing die compacted powder metallurgy components with fully en-closed internal structures was developed. The physical characteristics of the compacts were evaluated by measuring bulk density, internal density gradients and compressive green strength. Additionally, a finite element simulation was developed to evaluate the compaction process of the internal structure compact. The internal structure compact displayed the anticipated lower bulk densities due to the less dense internal structure than a conventional powder metallurgy compact, however; higher local densities wer

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15

Chen, Jen-Sheng, and 陳錦盛. "Effects of Green Density and Sintering Temperature on the Profile Precision of a Powder Metallurgy Spur Gear." Thesis, 2003. http://ndltd.ncl.edu.tw/handle/27247912544879784411.

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碩士<br>國立交通大學<br>機械工程系<br>91<br>A gear is one of the important transmission elements in a machine system. The manufacture methods of gears can be categorized into the cutting method and the non-cutting method. Manufacturing of a sintered powder-metallurgy gear belongs to the non-cutting method. The sintered powder-metallurgy gears have great advantages of cost down, suitable for mass production and fast production, etc. As the result of the improvement of powder-metallurgy manufacturing technology, including the research and development of the powder prescription and the improvement of forming

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16

Riecker, Sebastian. "Untersuchungen zur Herstellung von pulvermetallurgischen Halbzeugen unter Verwendung eines kontinuierlichen Sedimentationsprozesses." 2020. https://tud.qucosa.de/id/qucosa%3A74197.

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Ziel der vorliegenden Arbeit ist es, die Herstellung von Grünkörpern mit vereinzelt unter Zentrifugalkraft sedimentierenden Partikeln und kontinuierlicher Partikelzufuhr zu untersuchen und ihre Eignung als neue Herstellungsvariante für metallische Grünteilhalbzeuge zur weiteren Verarbeitung mittels CNC-Zerspanung zu bewerten. Zur umfassenden Einordnung der Herstellungsmethode untergliedert sich die Zielstellung zum einen in die Beleuchtung des Einflusses des Ausgangspulvers auf die Packungscharakteristik der Sedimente. Dabei sollen vorteilhafte Partikelgrößenverteilungen identifiziert und typi

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