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Dissertations / Theses on the topic 'Engineering Materials ; Metallurgy'

Author: Grafiati

Published: 4 June 2021

Last updated: 4 February 2022

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1

Williams, Katherine E. (Katherine Edith). "An examination of Maya metallurgy, 1150 to 1544 A.D." Thesis, Massachusetts Institute of Technology, 1990. http://hdl.handle.net/1721.1/32576.

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2

Morris, Brian 1974. "Microstructural characteristics and processing parameters affecting hydrogen permeation through polycrystalline materials." Thesis, McGill University, 1998. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=21314.

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An electrochemical permeation cell has been used to test the influence of microstructural characteristics of metal specimens and electrochemical processing parameters on electrochemical hydrogen diffusion. The affect of intercrystalline volume, entry surface roughness, cathodic charging current density and different cold working conditions on hydrogen diffusion through polycrystalline metals was tested. Nanocrystalline specimens of pure nickel and of 80%-Nickel 20%-Iron were tested to determine the affect of intercrystalline volume on hydrogen breakthrough diffusion. Specimens of pure palladiu

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3

Saarimäki, Jonas. "Effect of Dwell-times on Crack Propagation in Superalloys." Licentiate thesis, Linköpings universitet, Konstruktionsmaterial, 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-123306.

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Gas turbines are widely used in industry for power generation and as a power source at "hard to reach" locations where other possibilities for electrical supply are insufficient. There is a strong need for greener energy, considering the effect that pollution has had on global warming, and we need to come up with ways of producing cleaner electricity. A way to achieve this is by increasing the combustion temperature in gas turbines. This increases the demand on the high temperature performance of the materials used e.g. superalloys in the turbine. These high combustion temperatures can lead to

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4

Rolinska, Monika. "Extraction Replicas of Common Engineering Alloys for Analysis of Small Precipitates." Thesis, KTH, Materialvetenskap, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-291204.

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Characterization of small precipitates is important for development of new alloys. One inherent difficulty in characterisation of small precipitates with electron microscopy techniques while the particles are embedded in the matrix, is that the surrounding bulk material will contribute to the analysed signal- limiting, for example, the quantification of the composition of particles. In order to avoid the matrix contribution, the extraction replica technique was developed in the 1950's. Extraction replicas are made by extracting only the particles from a material onto a thin

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5

Lu, Jian 1964. "Computer modeling of intergranular fracture in textured materials." Thesis, McGill University, 1995. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=39950.

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An integrated computer simulation employing the Embedded-atom method (EAM), Molecular dynamics (MD), and Markov Chain Fracture models has been constructed and applied to study the intergranular fracture of brittle polycrystalline materials at both the atomistic and microscopic levels. At the atomistic level, the computer model is capable of treating bicrystals under the influence of external load and temperature with dynamic periodic boundary conditions along the grain boundary plane and a dynamic boundary condition perpendicular to the grain boundary plane. At the microscopic level, the compu

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6

Halilovic, Selma. "Evaluation of new powder grade for furnace control pieces in sintering process." Thesis, Uppsala universitet, Tillämpad materialvetenskap, 2021. http://urn.kb.se/resolve?urn=urn:nbn:se:uu:diva-448371.

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To be able to supervise the quality of a sintering process, furnace control pieces are therefore used. The current furnace control piece is not sensitive enough small variations during insert production. The goal of the project was to find and evaluate a new suitable cemented carbide grade, which better captures temperature variations during sintering process, likewise, evaluate the alternative placing in the production furnace and methods to supervise and follow the status of the sintering process. The cemented carbide grade 592, which is a DQ-grade, captured larger temperature variations dur

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7

Webster, Rhiannon Alys. "Passive materials for high frequency piezocomposite ultrasonic transducers." Thesis, University of Birmingham, 2010. http://etheses.bham.ac.uk//id/eprint/1311/.

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High frequency ultrasound is receiving increased attention for medical imaging in areas such as ophthalmology and dermatology. Recent advances in the manufacture of fine scale piezocomposite materials mean there is great potential for commercial transducers far superior to conventional devices currently in clinical use. This Thesis reports the fabrication and characterisation of passive materials suitable for use in high frequency piezocomposite transducer devices. Epoxy composites have been fabricated using tungsten and alumina as filler material with volume fractions up to 0.4. Acoustic impe

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8

Almebäck, Julia Linnea Hildur, Amanda Edberg, and Rafa Shah. "Corrosion in Pulp Mills : Material Selection for an Evaporation Plant." Thesis, KTH, Materialvetenskap, 2020. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-277877.

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Corrosion is a global problem which leads to both economicalct on the environment as well as other negative social and ethical aspects. Sodra Cell Monsteras, one of the largest producer of pulp in the world, suffers from corrosion problems in their evaporation plant. Problems with corrosion can be handled with an effective material selection process, where suitable materials for specific conditions is discovered. The purpose with this report is to investigate the evaporation plant at Sodra Cell and its specific conditions, including environment and temperature. Also to investigate different ty

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9

Yi, Xiaodong. "Rapidly solidified magnesium : nickel alloys as hydrogen storage materials." Thesis, University of Birmingham, 2014. http://etheses.bham.ac.uk//id/eprint/5174/.

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Due to high hydrogen capacity, good reversibility and low cost, magnesium hydride is one of the most promising hydrogen storage materials. However, the high desorption temperature and slow hydriding kinetics hinder the application of magnesium hydrides. To improve the hydrogen storage characteristics of magnesium hydrides, many effective treatments have been developed and applied, such as ball milling, melt spinning, alloying with other metals, adding catalysts and using thin film technique. In this work, melt spinning and alloying with Ni were the main sample modification methods used to impr

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10

Muscat, Daniel. "Silicon nitridesilicon nitride whisker-reinforced composites." Thesis, McGill University, 1990. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=60102.

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One of the major setbacks of ceramic materials is their inherent brittle nature which often leads to catastrophic failure, especially under impact and tensile stress conditions. Whisker-reinforcement of ceramic matrices has been shown to be an effective way of increasing toughness. However, the hot-pressing techniques being used at present are expensive. Si$ sb3$N$ sb4$ is a major contender for high temperature application, mainly due to its excellent mechanical, chemical and thermal properties.<br>In this work Si$ sb3$N$ sb4$ whiskers have been incorporated into a Si$ sb3$N$ sb4$ matrix and d

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11

Baczynski, Jerzy 1958. "Torsion textures produced by deformation and by dynamic recrystallization in a-iron and two IF steels." Thesis, McGill University, 1996. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=40311.

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The textures of two IF steels and a high purity $ alpha$-iron were determined after deformation in torsion over the temperature range 20-840$ sp circ$C. The three characteristic bcc torsion fibres are described in detail and the locations of some important ideal orientations are identified on the $ {110 }$ pole figure. At room temperature, these are the F(110)(001), J1 (011) (211), J2 (110) (112), D1 (112) (111), D2 (112) (111), E1 (011) (111) and E2 (011) (111). At elevated temperatures, the conditions were chosen so that dynamic recrystallization (DRX) took place in the ferrite and that stat

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12

Cardoso, Geraldo I. S. L. "The influence of microstructure on the hot ductility of four low carbon steels with respect to transverse crack formation in continuously cast slabs /." Thesis, McGill University, 1990. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=59567.

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The influence of Al, Mn and Ti on the hot ductility of four low C steels has been examined.<br>Ductility troughs were exhibited by all the steels. These could be related to the austenite-to-ferrite phase transformation and grain boundary precipitation behavior. When no precipitation took place at the austenite grain boundaries, the trough occurred by intergranular failure. Fracture surfaces revealed microvoid coalescence, with voids associated with MnS inclusions.<br>Increasing the Mn in the steels lowers the $ gamma to alpha$ transformation temperature, causing the trough to be moved to lower

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13

Roucoules, Christine. "Dynamic and metadynamic recrystallization in HSLA steels." Thesis, McGill University, 1992. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=39794.

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A Mo, a Nb and a Ti steel were tested in torsion to study the characteristics of dynamic and postdynamic recrystallization. To characterize dynamic recrystallization, continuous torsion tests were carried out between 850 and 1050$ sp circ$C at strain rates of 0.02, 0.2 and 2s$ sp{-1}.$ Quenches were performed to investigate the grain refinement produced by dynamic recrystallization. Interrupted torsion tests were performed between 850 and 1050$ sp circ$C and at strain rates between 0.02 and 2s$ sp{-1}$ to study the characteristics of postdynamic recrystallization. Quenches were performed after

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14

Barnett, Matthew R. "Influence of warm rolling temperature on ferrite recrystallization in low C and IF steels." Thesis, McGill University, 1996. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=41976.

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Experiments involving single pass laboratory rolling and isothermal salt bath annealing were carried out; three steels were studied: a titanium stabilized interstitial free grade and two low carbon grades, one of which contained a particularly low level of manganese ($ sim$0.009wt.%). The two low carbon grades were produced such that any complication from AlN precipitation was avoided. X-ray, neutron diffraction, optical metallography and mechanical testing measurements were carried out on the samples before and after annealing. The main aim of this work was to further the understanding of the

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15

Saxena, Pawan. "Slip casting of silicon nitride." Thesis, McGill University, 1992. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=56974.

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Slip casting is a well established technique for the manufacture of traditional ceramic bodies, such as clays and whitewares. It combines complex shaping with high green densities, resulting in low shrinkage and good densification behaviour.<br>This method, however, has received little attention in the field of engineering ceramics especially with regard to silicon nitride. Commercial fabrication of silicon nitride, a major contender for high temperature applications due to its excellent thermomechanical properties, has been confined to hot pressing. This is an expensive process and has geomet

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16

Li, Dongyang. "Texture formation in iron electrodeposits." Thesis, McGill University, 1995. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=29076.

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The texture of electrodeposits has attracted increasing interest, as it is recognized that it is a possible to benefit from the texture and to improve the various properties of electrodeposits or electrolytic coatings. For example, the corrosion resistance of materials is affected by texture. If appropriate textures are introduced in electrodeposited coatings, their corrosion resistance would be enhanced and the coatings will therefore have a longer service time. Texture development during electrodeposition is still poorly understood, and this makes it difficult to control the texture formatio

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17

Debray, Bruno. "Microstructure and mechanical properties of an as-hot rolled carbon manganese ferrite-bainite sheet steel." Thesis, McGill University, 1993. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=69713.

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By means of torsion testing, the microstructures and mechanical properties produced in a 0.14%C-1.18%Mn steel were investigated over a wide range of hot rolling conditions, cooling rates and coiling temperatures. The reheating temperature was varied between 800$ sp circ$C and 1050$ sp circ$C, and strains between 0 and 0.8 were applied. This led to austenite grain sizes ranging from 10 to 150$ mu$m. Two cooling rates, 55$ sp circ$C/s and 90$ sp circ$C/s, were applied and cooling was interrupted at coiling temperatures ranging from 550$ sp circ$C to 300$ sp circ$C.<br>Optical microscopy and TEM

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18

Zarandi, Faramarz MH. "The effect of high temperature deformation on the hot ductility of Nb-microalloyed steel /." Thesis, McGill University, 2004. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=85109.

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Low hot ductility at the straightening stage of the steel continuous casting process, where the surface temperature ranges from 600 to 1200°C, is associated with transverse cracking on the billet surface. This is attributed to various microalloying elements, which are essential for the mechanical characteristics of the final products. Thermomechanical processing is a new approach to alleviate this problem. In this work, two grades of Nb-containing steel, one modified with B, were examined. In order to simulate the key parameters of continuous casting, specimens were melted in situ and s

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19

Hassani, Farideddin. "Mechanical behaviour of steel near the incipient melting temperature." Thesis, McGill University, 1993. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=69719.

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A new method of incipient melting temperature (IMT) detection, continuous heating and fracture (CHF) method, has been developed in which a constant strain rate tensile or torsion deformation is applied to a specimen whose temperature is simultaneously increased. The IMT is determined in a single test and any phase transformations before the IMT will also be detected by the effects on the stress vs. strain behavior in the same experiment. This method also provides information about the effect of phase transformation and temperature on the mechanical behaviour of steel near the incipient melting

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20

Jiang, Lan 1970. "Effect of silicon on the interaction between recrystallization and precipitation in niobium microalloyed steels." Thesis, McGill University, 2003. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=79236.

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The effect of Si addition on the interaction between recrystallization and precipitation during multipass deformation has been investigated in terms of the no-recrystallization temperature (Tnr), the minimum temperature at which recrystallization can be completed. The Tnr was measured in three Nb microalloyed steels with Si concentrations ranging from 0.01 to 0.48wt.%. Continuous cooling conditions were employed, with interpass times of 20--200s and strains of 0.2 and 0.35 applied at a strain rate of 2s -1.<br>It was observed that for similar Nb contents, the Tnr increased with Si level

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21

Elalem, Kaled. "Application of heat pipe technology in permanent mold casting of nonferrous alloys." Thesis, McGill University, 2004. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=85067.

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The issue of mold cooling is one, which presents a foundry with a dilemma. On the one hand; the use of air for cooling is safe and practical, however, it is not very effective and high cost. On the other hand, water-cooling can be very effective but it raises serious concerns about safety, especially with a metal such as magnesium. An alternative option that is being developed at McGill University uses heat pipe technology to carry out the cooling.<br>The experimental program consisted of designing a permanent mold to produce AZ91E magnesium alloy and A356 aluminum alloy castings with sh

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22

Akbarzadeh, Abbas. "Effect of thermomechanical processing on microstructure, texture, and anisotropy in two Nb microalloyed steels." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk3/ftp04/nq29871.pdf.

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23

Zhang, Bin. "Fatigue behavior in an aluminum casting alloy (A356.2): Effects of some defects, SDAS, Hipping and strontium modification." Diss., The University of Arizona, 2002. http://hdl.handle.net/10150/280228.

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Effects of pore, secondary dendrite arm spacings (SDAS ), hot isostatic pressing (Hipping), and strontium-modification on fatigue behavior were studied in an aluminum casting alloy (A356.2). Microstructures were revealed by X-ray radiography, light microscopy and scanning electron microscopy. Small-cracks were monitored by taking replicas of the surfaces with which the cracks intersected. As the SDAS increases from 15 to 55 μm, fatigue life decreases by a factor of 3 in low-cycle fatigue, and 100 in high-cycle fatigue. When SDAS is less than 30 mum, the pore size is below a critical size of ∼8

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24

Moats, Michael Scott 1970. "Electrochemical characterization of anode passivation mechanisms in copper electrorefining." Diss., The University of Arizona, 1998. http://hdl.handle.net/10150/282777.

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Anode passivation can decrease productivity and quality while increasing costs in modern copper electrorefineries. This investigation utilized electrochemical techniques to characterize the passivation behavior of anode samples from ten different operating companies. It is believed that this collection of anodes is the most diverse set ever to be assembled to study the effect of anode composition on passivation. Chronopotentiometry was the main electrochemical technique, employing a current density of 3820 A m⁻². From statistical analysis of the passivation characteristics, increasing selenium

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25

Cherne, Frank Joseph. "Calculation of transport properties of liquid metals and their alloys via molecular dynamics." Diss., The University of Arizona, 2000. http://hdl.handle.net/10150/284305.

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The advanced casting modeler requires accurate viscosity and diffusivity data of liquid metals and their alloys. The present work discusses the use of equilibrium and non-equilibrium molecular dynamics techniques to obtain such data without having to rely on oversimplified phenomenological expressions or difficult and expensive experiments. Utilizing the embedded atom method (EAM), the viscosities and diffusivities for a series of equilibrium and non-equilibrium molecular dynamics simulations of nickel, aluminum, and nickel-aluminum alloys are presented. A critical comparison between the equil

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26

Apprill, Jon M. 1974. "Process control of GASAR porous metals." Thesis, The University of Arizona, 1998. http://hdl.handle.net/10150/291491.

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GASAR porous metals are produced by melting under a partial pressure of hydrogen and then casting into a mold that ensures directional solidification. Hydrogen is driven out of solution and grows as cylindrical pores normal to the solidification front. Experiments have been performed to produce GASARs from pure Ni and Inconel 718, a nickel-base superalloy. The processing variables studied in these experiments included the pressure of H₂(g), total pressure, superheat, and solidification rate. An analysis that considers heterogeneous bubble nucleation was developed that identifies processing con

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27

Frueh, Christian 1969. "The effect of silica-containing binders on the titanium/face coat reaction." Thesis, The University of Arizona, 1995. http://hdl.handle.net/10150/291718.

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The interactions of CP-Ti and Ti-6Al-4V with investment molds with alumina/silica and yttria/silica face coat systems, and yttria crucibles were studied. It was found that the thickness of the reaction layer (alpha case) was the same, whether a yttria/silica or alumina/silica face coat was used, indicating that it is the silica binder truly which reacts with the titanium. Furthermore, it was found that only the yttria crucible was inert to reacting with titanium when it was used as a mold. When titanium was heated in yttria crucibles, however, and held just above the liquidus for 15 s and 30 s

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28

Tedds, Steven Paul. "Microporous materials for hydrogen storage." Thesis, University of Birmingham, 2011. http://etheses.bham.ac.uk//id/eprint/1765/.

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Microporous materials (with pores of less than 2 nm in diameter) have attracted considerable attention due to the variety of applications such as gas storage. Physisorption of molecular hydrogen offers several advantages over chemical absorption, namely, fast kinetics and complete reversibility. The overall aim of this work was to investigate the potential of microporous materials for hydrogen storage, with particular attention given to a relatively new class of material: Polymers of Intrinsic Microporosity (PIMs). Generally the PIMs were seen to adhere to Chahine’s rule, which predicts a line

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29

Ranalli, Juan Manuel. "Relationship between microstructure and corrosion of pressure vessel cladding materials." Thesis, University of Birmingham, 2018. http://etheses.bham.ac.uk//id/eprint/8333/.

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Type 347L and Type 309L stainless steels used as weld cladding materials of nuclear reactor pressure vessels were investigated under realistic conditions of fabrication and service. Electron backscatter diffraction and metallographic observations were used in combination with double loop electrochemical potentiokinetic reactivation (DLEPR) test and ASTM-262-A test to determine the precipitation behaviour and its influence on intergranular corrosion (IGC) resistance as a function of post welding heat treatment (PWHT) time at 600 oC and after simulated service ageing at 425 °C. It was shown that

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30

Chen, Ke. "The Origin of Coarse Grain Structure in Friction-Stir Welded AA5083 after Heat Treatment." The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1244047069.

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31

Welk, Brian A. "Microstructural and Property Relationships in β-Titanium Alloy Ti-5553". The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1262191957.

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32

May, Katelun. "Small Scale Tensile Testing of Titanium Alloys." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1282099780.

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33

Caron, Jeremy Leonard. "Weldability Evaluation of Naval Steels." The Ohio State University, 2010. http://rave.ohiolink.edu/etdc/view?acc_num=osu1285050450.

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34

Zhong, Wei. "Measurement of Diffusion Coefficients of Nine Elements in Magnesium and Establishment of a Comprehensive Mobility Database for Lightweight Magnesium Alloys." The Ohio State University, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=osu1557147025847122.

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35

Sliwinski, Peter R. "Powder painting of aluminium." Thesis, Aston University, 1985. http://publications.aston.ac.uk/14478/.

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The mechanisms involved in the production of chromate-phosphate conversion coatings on aluminium have been investigated. A sequence of coating nucleation and growth has been outlined and the principle roles of the constituent ingredients of the chromate-phosphate solution have been shown. The effect of dissolved aluminium has been studied and its role in producing sound conversion coatings has been shown. Metallic contamination has been found to have a dramatic influence on chromate-phosphate coatings when particular levels have been exceeded. Coating formation was seen to be affected in propo

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36

Johnston, Cameron L. "Structure and properties of arc sprayed steel coatings." Thesis, Aston University, 1985. http://publications.aston.ac.uk/14479/.

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37

Cooney, Elizabeth Myers. "Bronze metallurgy in Iron Age central Europe : a metallurgical study of Early Iron Age bronzes from Stična, Slovenia." Thesis, Massachusetts Institute of Technology, 2007. http://hdl.handle.net/1721.1/39480.

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Thesis (S.M.)--Massachusetts Institute of Technology, Dept. of Materials Science and Engineering, 2007.<br>This electronic version was submitted by the student author. The certified thesis is available in the Institute Archives and Special Collections.<br>Includes bibliographical references (v. 2, p. 375-377).<br>The Early Iron Age (750-450 BCE) marks a time in the European Alpine Region in which cultural ideologies surrounding bronze objects and bronze production were changing. Iron was becoming the preferred material from which to make many utilitarian objects such as weapons and agricultur

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38

Crisan, Ioan Adrian. "Vortex matter, dynamics and pinning in superconducting materials." Thesis, University of Birmingham, 2013. http://etheses.bham.ac.uk//id/eprint/4091/.

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The enclosed body of work represents a compilation of published papers coveringwork carried out in the Universities of Birmingham, Bath and Southampton, UK, in theSecond University of Rome “Tor Vergata”, Italy, in the Nanoelectronics Research Institute (former Electrotechnical Laboratory) of AIST Tsukuba, Japan, and in the National Institute of Materials Physics (former Institute of Physics and Technology of Materials), Bucharest, Romania, during my research career over more than twenty years. The thesis comprises mainly research work on science and technology of high temperature superconducti

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39

Demmons, Alan C. "Superalloy Metallurgy a Gleeble Study of Environmental Fracture in Inconel 601." DigitalCommons@CalPoly, 2016. https://digitalcommons.calpoly.edu/theses/1595.

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At temperatures above 0.5 Tm and in aggressive atmospheres predicting alloy performance is particularly challenging. Nickel alloys used in regimes where microstructure and properties are altered dynamically present unique requirements. Exposure may alter properties with unexpected early failure. The Gleeble is a valuable tool for investigation and simulation of thermo-mechanical properties of an alloy in various regimes up to the threshold of melting. In this study, four regimes of temperature and strain rate were simulated in an argon atmosphere to both investigate and document normal and ab

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40

Mickelsson, Sandra. "Kartläggning av AOD-konverterns ingångsförhållanden och dess påverkan på färskningstiden." Thesis, Luleå tekniska universitet, Industriell miljö- och processteknik, 2018. http://urn.kb.se/resolve?urn=urn:nbn:se:ltu:diva-70230.

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Sandvik Materials Technology tillverkar varje år cirka 230 000 ton stål varav en stor del är rostfritt stål. För att sänka kolhalten i stålet används en AOD-konverter där en kombination av syrgas och inertgas blåses in stålet för att avlägsna kol som kolmonoxid. Vissa duplexa rostfria stålsorter är trögfärskade vilket lätt leder till att konvertern blir flaskhalsen i stålverket. Syftet med arbetet är att undersöka och kartlägga parametrar som påverkar färskningstiden för trögfärskade duplexa stålsorter. Tiden i konvertern kan variera kraftigt mellan olika charger och det finns därför en ekonom

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41

Wang, Ye. "Self-assembled nanorods and nanowires from oxide functional materials grown by pulsed laser deposition." Thesis, University of Birmingham, 2014. http://etheses.bham.ac.uk//id/eprint/5231/.

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In this study, ZnO, MgO, In2O3, SnO2, iron oxide nanowires and nanorods were successfully produced by using Pulsed Laser Deposition. It was observed that the parameters, such as gold nanodots, number of pulses on the targets, temperature, oxygen pressure and substrate, contribute to various results. Different metal catalyst or substrate results in different morphology. Controlling oxygen pressure and substrate temperature was found to be crucial for the ZnO, In2O3 and iron oxide nanowires growth using this technique. The morphology of ZnO nanowires is highly influenced by plasma plume. Increas

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42

Johnson, Luke N. "Analysis of Microstructure and Macrosegregation for Directional Solidification of Al-7 wt% Si Alloy with a Cross-Section Change at Growth Speeds of 10 and 29.1 μm/s". Cleveland State University / OhioLINK, 2013. http://rave.ohiolink.edu/etdc/view?acc_num=csu1372067962.

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43

Zhang, Jing Zavaliangos Antonios. "Numerical simulation of thermoelectric phenomena in field activated sintering /." Philadelphia, Pa. : Drexel University, 2004. http://dspace.library.drexel.edu/handle/1860/407.

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44

Kannan, Manigandan. "A Study of Microstructure, Quasi-Static Response, Fatigue, Deformation and Fracture Behavior of High Strength Alloy Steels." University of Akron / OhioLINK, 2014. http://rave.ohiolink.edu/etdc/view?acc_num=akron1417552570.

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Lan, Song. "High Temperature Nitridation of Powder and Nanocomposite Iron-based Magnetic Alloys." Case Western Reserve University School of Graduate Studies / OhioLINK, 2018. http://rave.ohiolink.edu/etdc/view?acc_num=case1527853642053372.

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Wang, Tianxue. "DYNAMIC BEHAVIOR OF COMMERCIAL PURITY POLYCRYSTALLINE MAGNESIUM AT ELEVATED TEMPERATURES AND HIGH STRAIN-RATES." Case Western Reserve University School of Graduate Studies / OhioLINK, 2019. http://rave.ohiolink.edu/etdc/view?acc_num=case156233794566219.

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Bourassa, Louis. "Improving the fatigue strength of Ti-6Al-4V by surface thermomechanical processing." Thesis, McGill University, 1994. http://digitool.Library.McGill.CA:80/R/?func=dbin-jump-full&object_id=26376.

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Abstract:

Surface thermomechanical processing was explored as a way to improve the fatigue strength of Ti-6Al-4V load bearing orthopaedic prosthesis. In this study, the surface of an implant is microknurled to provide a "textured" surface that allows for mechanical fixation by bone ingrowth. The microknurling is essentialIty an indentation technique and thus generates plastic deformation which is limited to the surface. This in turn can be used to produce localized surface recrystallization, thus permitting the modification of the surface microstructure.<br>The microstructure of Ti-6Al-4V can be control

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Megharief, Jihad Dokali. "Behavior of composite castellated beams." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1997. http://www.collectionscanada.ca/obj/s4/f2/dsk2/ftp03/MQ37273.pdf.

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Varano, Rocco. "Structure-property investigation of Co-Cr-Mo alloys used in metal-metal total hip replacements." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 1998. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape11/PQDD_0025/MQ50669.pdf.

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Sivasundaram, Mathumathi. "Glass ceramics from pulp and paper waste ash." Thesis, National Library of Canada = Bibliothèque nationale du Canada, 2000. http://www.collectionscanada.ca/obj/s4/f2/dsk1/tape4/PQDD_0032/MQ64248.pdf.

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