Global ETD Search
Search theses and dissertations gathered from participating repositories worldwide. Every result links back to the library that holds it. No account is needed.
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Showing 1 to 20 of 1075 for “"microstructural"”.
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Microstructural degradation of bearing steels
The aim of the work presented in this thesis is to clarify one of the most fundamental aspects of fatigue damage in bearings steels through critical experiments, in particular whether damage in the form of cracks precedes hard “white-etching matter" formation, which is carbon supersaturated …
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Microstructural Analysis of Revelation 4-11
… purpose of this dissertation is to carry out a microstructural analysis of Rev 4-11 which is one of the essential procedures in an accurate exegesis of the Apocalypse.</p> <p>Chapter 1 of this study deals with the method of analysis. A brief review of literature is presented. The study of modern …
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Microstructural modeling of lithium battery electrodes
… in lithium ion batteries was studied from a microstructural point of view. Electron transport was analyzed using percolation theory and comparison with other conductor-insulator composites. An in situ filter pressing apparatus was designed and constructed in order to determine the percolation …
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Microstructural Characterization of 3D Deposited Metal Structures
… in conjunction with SEM imaging. The smallest microstructural length scale of nickel materials was a set of nanostructured electrode catalysts. The grain size seen in the deposition layers was in the hundreds of nanometers, and an overall growth texture in the {112} direction was observed. The …
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Microstructural properties of isothermal palm oil crystallization
… aims at understanding the effect of shear on the microstructural development. Both continuous shear during crystallization as well a time limited shear step prior to static crystallization are considered. In conclusion, the third part consists of a case study investigating the role of trans fatty …
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Impression creep testing within a microstructural gradient
Includes bibliographical references.
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Microstructural investigations of ion (Kr) irradiated UO2
A single crystal thin film of UO2 on a YSZ substrate was irradiated with 1MeV Kr ions at doses ranging from 1x1014 ions/cm2 to 1x1016 ions/cm2 and temperatures ranging from room temperature to 1000°C. These irradiations were conducted ex situ with one in situ irradiation at 800°C. Post irradiation …
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Microstructural behavior in superplastic lead-tin eutectic.
Thesis: B.S., Massachusetts Institute of Technology, Department of Metallurgy, 1966
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Microstructural Analysis of Garnet-Heavy Metal Heterostructures
… is sputtered between the two garnet layers. Microstructural and magnetic characteristics are investigated.
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Microstructural and Mechanical Properties of Human Ribs
The direction of osteons in cortical bone has been shown to be well correlated with the strongest loading direction of the bone as a whole. Therefore, determining the orientation of osteons in the rib cage is an important step in understanding the behavior of the rib cage under mechanical load. A …
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Microstructural Modeling of Failure Modes in Martensitic Steels.
North Carolina State University Theses Mechanical Engineering.
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Microstructural dynamics induced by nanoscale stress in ferroelectrics
… locally controlling and understanding the microstructural dynamics such as ferroelectric switching behaviour and domain wall motion. Intuitively, electric fields have been extensively used to probe and provide insight into these dynamics. Some studies have also investigated the role of …
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Microstructural modelling of fatigue in layered bearing architectures
… evaluation was based upon the investigation of microstructural features involved in early fatigue initiation and their effect upon short crack growth on the surface. Subsurface crack growth through the layers has also been assessed and finally the observed fatigue life of various components …
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Design of Advanced Materials With Novel Microstructural Features
The third project illustrated the preparation of proton-conducting composite membranes for fuel cells. Composite membranes were prepared by solution blending sulfonated poly (ether ether ketone) and polyacrylonitrile in DMF and heating under nitrogen at 380 °C. This novel system offered a …
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Microstructural characteristics of gold-rich gold-iron alloys
… from 10.7 to 33at% were studied to clarify their microstructural characteristics. As a consequence and in comparison with previous work, some different interpretations are proposed.
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Microstructural studies of vapor-deposited nickel/ceramic composites
This research program examines fundamental aspects of metal/ceramic interactions through the analysis of model composites produced by plasma-assisted physical vapor deposition (ion plating) and consisting of thin ($<$1 micrometer) metallic films on a ceramic substrate. The two major aspects of this …
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Microstructural formations and phase transformation pathways in tantalum carbides
… in pre-tested grain boundaries, providing microstructural markers of the grains initial size, shape and location in the microstructure.
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Microstructural analysis of thermal spray coatings by electron microscopy
Plasma and High Velocity Oxy-Fuel (HVOF) spraying are two of the most common thermal spray processes. In both methods, heated particles are sprayed through a flame (either plasma or oxygen fuelled), before being projected at high velocity towards a substrate. Upon impact they flatten, forming …
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