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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 20 for “"Phase identification"”.
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Thermal Decompositions and Phase Identification in the Zirconium-Dioxide - Calcium-Oxide - Phosphorus-Pentoxide System
Made available in DSpace on 2014-12-10T17:32:35Z (GMT). No. of bitstreams: 1 6711826.pdf: 1975552 bytes, checksum: c3e207876f6fd8170e55f62d64e7dcdf (MD5) Previous issue date: 1967
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Development of novel computational techniques for phase identification and thermodynamic modeling, and a case study of contact metamorphism in the Triassic Culpeper Basin of Virginia
… for the assessment of uncertainty in calculated phase assemblage diagrams. Such phase equilibria are ubiquitous in modern petrology, but uncertainties are rarely considered. Methods are discussed for visualizing and quantifying emergent patterns as phase diagrams are re-calculated with input data …
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Annular beam X-ray imaging
… Xray diffraction data for structural analysis/phase identification. This method, termed Focal Construct Geometry (FCG), provided orders of magnitude increase in the intensity of the diffracted X-rays within the beam’s dark interior to enable rapid processing. However, this work relied upon a …
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Solar receiver coating development: the synthesis and growth of copper chromite spinel particles across sol-gel routes and calcination profiles
… diffraction and scanning electron microscopy. Phase identification was determined by powder X-ray diffraction. The kinetics of particle growth observed were consistent with a diffusion limited inhibited grain growth mechanism. The sol-gel route synthesized through modified Pechini and calcined …
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Hard and tough electrodeposited aluminum-manganese alloys with tailored nanostructures
… upon the appearance of a secondary amorphous phase. In these dual-phase alloys, the phases are distributed in a characteristic domain-network structure. At high Mn contents, an amorphous phase that contains pre-existing nanoquasicrystalline nuclei dominates. Leveraging the effects of surface …
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Physical and Chemical Properties of Matrix in Primitive Chondrites
… distribution of discrete grains of different phases (silicate vs. opaque). Data acquired suggest that the four meteorites can be split into two groups, ALHA77307-MIL 07687 and QUE 99177 and Acfer 094, based on differences in relative abundances and sizes of discrete grains in their matrix. …
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The States and Status of Clay: Material, Metamorphic and Metaphorical Values.
… life. During the initial exploratory ‘In-breath’ phase of my practice, comprising four site-specific pieces, I engaged with clay at sites of historical relevance, building an expansive knowledge of my material. During the later ‘Out-breath’ phase, identification with site was relinquished. These …
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Phase equilibria, thermal expansion and symmetry relations within the HfO2-Ta2O5-TiO2-temperature system
… rely on a foundation of knowledge of phase equilibria. In this dissertation, a systematic approach to the rapid production of the high temperature HfO2-Ta2O5-TiO2 phase diagrams is presented that highlights the combined use of: (i) in-situ high temperature X-ray diffraction (up to 3000 …
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Crystallisation Behaviour and Heat Transfer Phenomenon of Fluoride-free Mould Fluxes for Steel Continuous Casting
… a reverse effect on crystallisation tendency. Phase identification showed that the dominant phase changed from CaSiO3 to Ca2MgSi2O7 and Ca11Si4B2O22 with increasing CaO/SiO2 ratio or Na2O content, also with decreasing B2O3 content. The heat transfer measurement showed that the heat flux …
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Magnetism of anthropogenic airborne particulate matter
… improves accuracy and reliability of chemical phase identification that is often limited by subjective human interpretation. Using magnetic and microscopy methods, I conclude that ultrafine magnetic particles are abundant and ubiquitous in urban microenvironments; and that their presence may be …
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The planning, monitoring and training of elite weightlifting
… scripts of software. The most common method of phase identification used change in knee joint angle and barbell displacement, often when using multi-camera systems. The number of phases identified ranged from 2 to 6, with 5 and 6 being reported most frequently, with the difference often being …
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Development of solvent for CO2 capture for utilization in concrete and storage in geological formations
… CO2 reacts with concrete, was confirmed by XRD phase identification analysis. Also, by the TGA thermogram, the calcium carbonates in the precipitate of the K2CO3-Ca(OH)2 reaction was 44.1wt.%, whiles that from CO2-loaded potassium glycinate-Ca(OH)2 was 55.4wt.%, demonstrating the ease with which …
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Nickel and cobalt sulfide nanomaterials for magnetic and energy applications
… influence on the particle size, morphology, and phase purity of the nanoparticles and thin films produced. These properties have a profound impact on the efficiency of the nanoparticles and thin films, towards specific applications. The work presented in chapter two aimed at establishing …
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The study of intermetallic particles in aluminium alloy AA3104 can-body stock during homogenisation
… of AA3104 direct chill (DC) ingot, there is a phase transformation from β-Al₆(Fe,Mn) orthorhombic phase to the harder α-Alₓ(Fe,Mn)₃Si₂ cubic phase. Phase transformation occurs by diffusion of Si and Mn, where diffusion of Mn determines the rate of transformation. The presence of the α-phase …
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Gait analysis of the hind limb in Labrador Retrievers with and without cranial cruciate ligament disease
… predominantly reaction forces during the braking phase and the extension during push-off. Kinetics also identified a greater joint moment and power of the contralateral limbs compared with normal, particularly of the stifle extensor muscles group, which may correlate with the lameness observed, …
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The role of alloying elements on the microstructure and thermal stability of Refractory Metal High Entropy Superalloys
… B2 matrix and can form Al-Zr-rich intermetallic phases, limiting room temperature ductility. This thesis aimed to develop understanding of the contributions of different elements to RSA microstructures, through the systematic study of constituent systems, which will aid the design of future RSAs. …
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An investigation into the precipitation of Fe(III) oxyhydroxides in lime neutralization processes
… Fe(III) oxyhydroxide precipitates. The mineral phase identification, though acknowledged to be valuable in iron precipitation, was seen to have negligible value in relation to describing dewatering behaviour, hence was not focused on. In order to achieve the objectives above, experiments were …
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Data-Driven Approaches for Enhancing Power Grid Reliability
… in power distribution networks: the accurate identification of load phases. This study develops a data-driven model leveraging consumption measurements from smart meters and corresponding substation data to reconstruct topology information in low-voltage distribution networks. The proposed …
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La valutazione energetico-ambientale dell’ospedale per acuti in fase d’uso. Criteri, indicatori, metodologie di verifica.Energetic and environmental operational hospital buildings assessment. Criteria, indicators and verification methods.
… protocols for the hospital buildings designing phase, while SBMethod proposes a reference grid, which can be used to develop criteria and indicators coherent with the relevant building practices in the various nations, for both the design and the operative phases. RESEARCH OBJECTIVES: The …
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ΗΛΕΚΤΡΙΚΕΣ ΙΔΙΟΤΗΤΕΣ ΛΕΠΤΩΝ ΥΜΕΝΙΩΝ ΜΕΤΑΛΛΟΥ-ΠΥΡΙΤΙΟΥ
ΜΕΛΕΤΩΝΤΑΙ Ο ΤΡΟΠΟΣ ΠΑΡΑΣΚΕΥΗΣ ΚΑΙ ΟΙ ΗΛΕΚΤΡΙΚΕΣ ΙΔΙΟΤΗΤΕΣ ΛΕΠΤΩΝ ΥΜΕΝΙΩΝ ΕΝΩΣΕΩΝ ΜΕΤΑΛΛΟΥ-ΠΥΡΙΤΙΟΥ (SILICIDES). ΜΕΤΑ ΤΗΝ ΠΑΡΑΣΚΕΥΗ, ΜΕ ΘΕΡΜΙΚΗ ΚΑΤΕΡΓΑΣΙΑ ΕΝ ΚΕΝΩ, ΤΩΝ ΛΕΠΤΩΝ ΥΜΕΝΙΩΝ ΤΩΝ ΕΝΩΣΕΩΝ ΜΕΤΑΛΛΩΝ-ΠΥΡΙΤΙΟΥ ΑΚΟΛΟΥΘΕΙ Η ΑΝΑΛΥΣΗ ΤΩΝ ΕΝΩΣΕΩΝ ΠΟΥ ΣΧΗΜΑΤΙΣΘΗΚΑΝ ΜΕ ΤΗΝ ΧΡΗΣΗ ΤΩΝ ΑΚΤΙΝΩΝ Χ, …