Log in

Relevant bibliographies by topics / Powder microstructural characterization / Dissertations / Theses

To see the other types of publications on this topic, follow the link: Powder microstructural characterization.

Dissertations / Theses on the topic 'Powder microstructural characterization'

Author: Grafiati

Published: 4 June 2021

Last updated: 17 February 2022

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 19 dissertations / theses for your research on the topic 'Powder microstructural characterization.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse dissertations / theses on a wide variety of disciplines and organise your bibliography correctly.

1

Garcia, de la Cruz Lucia. "Ultrafine grained nickel processed by powder metallurgy : microstructure, mechanical properties and thermal stability." Thesis, Normandie, 2019. http://www.theses.fr/2019NORMC224.

Full text

Abstract:

La synthèse par métallurgie des poudres de nickel à grains ultrafins (UFG) a été effectuée, et l’effet de l’affinement de la microstructure sur le comportement mécanique et les propriétés physiques a été étudié. La possibilité de coupler le broyage et le frittage flash est étudiée avec des résultats prometteurs. Des échantillons de haute densité avec des tailles de grains d = 0.65 – 4 µm, caractérisés par une fraction élevée des joints de grains Σ3 et un faible niveau de contrainte ont été synthétisés. Les propriétés mécaniques des échantillons UFG montrent une bonne combinaison ductilité-rési

APA, Harvard, Vancouver, ISO, and other styles

2

Champion, Guillaume. "Étude des relations microstructures : propriétés d'usage, de poudres fissiles d'alliages U(Mo)." Thesis, Rennes 1, 2013. http://www.theses.fr/2013REN1S118/document.

Full text

Abstract:

Cette thèse participe au développement d’un combustible particulaire uranium-molybdène dans le cadre de la conversion des réacteurs de recherche de haute-performance en France et à travers le monde, à l’utilisation de combustibles faiblement enrichis (LEU : Low Enriched Uranium à opposer à HEU : High Enriched Uranium). Ce dernier se présente sous la forme d’une dispersion de particules uranifères U(Mo) dans une matrice à base d’aluminium et une question majeure persiste quant à l’interaction se produisant entre le composé U(Mo) et la matrice d’aluminium. En effet, il a été constaté que sous ce

APA, Harvard, Vancouver, ISO, and other styles

3

Boulnat, Xavier. "FAST high-temperature consolidation of Oxide-Dispersion Strengthened (ODS) steels : Process, microstructure, precipitation, properties." Thesis, Lyon, INSA, 2014. http://www.theses.fr/2014ISAL0139/document.

Full text

Abstract:

Ce travail vise à améliorer la compréhension de la microstructure d’aciers ferritiques appelés aciers ODS. Ils sont fabriqués par métallurgie des poudres, ce qui inclut le cobroyage d’une poudre ferritique avec une fine poudre d’oxydes, suivi d'une consolidation à haute température. La consolidation permet de former un matériau dense renforcé par des particules nanométriques qui sont responsables des bonnes propriétés mécaniques à haute température. Cependant, les procédés conventionnels, notamment la Compaction Isostatique à Chaud, provoquent des microstructures hétérogènes qui étaient jusqu’

APA, Harvard, Vancouver, ISO, and other styles

4

Gurumurthy, Ashok. "Simulation methodologies for multiphase three-dimensional microstructures." Diss., Georgia Institute of Technology, 2014. http://hdl.handle.net/1853/52261.

Full text

Abstract:

There is a need for simulation methodologies for multiphase three-dimensional microstructures that can be used in numerical simulations of material behavior or in exact computation of effective properties using microstructural correlation functions. Specifically, the methodology must be able to generate verifiably realistic microstructures, with complex morphology accurately represented. Striving to address that need, the research presented here develops a general microstructure simulation toolbox for multiphase two- and three-dimensional microstructures consisting of one connected phase and

APA, Harvard, Vancouver, ISO, and other styles

5

Mazinanian, Neda. "Influence of microstructure and proteins on the metal release of micron-sized stainless steel powder particles." Thesis, KTH, Materialvetenskap, 2012. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-98082.

Full text

Abstract:

Knowledge on metal release processes from stainless steel powder, which can be potentially inhaled at occupational settings, is essential within the framework of human health and environmental risk assessments. An in-depth knowledge concerning powder history, physical properties of particles (e.g. size, morphology, and active surface area) combined with their chemical properties (such as the chemical composition of the particles and their metal release behavior) is needed for better understanding of the interaction mechanisms between metal powders and humans. So far, limited in vitro and in vi

APA, Harvard, Vancouver, ISO, and other styles

6

Mart, Cody W. "Characterization and Power Scaling of Beam-Combinable Ytterbium-Doped Microstructured Fiber Amplifier." Thesis, The University of Arizona, 2017. http://pqdtopen.proquest.com/#viewpdf?dispub=10621184.

Full text

Abstract:

<p> In this dissertation, high-power ytterbium-doped fiber amplifiers designed with advanced waveguide concepts are characterized and power scaled. Fiber waveguides utilizing cladding microstructures to achieve wave guidance via the photonic bandgap (PBG) effect and a combination of PBG and modified total internal reflection (MTIR) have been proposed as viable single-mode waveguides. Such novel structures allow larger core diameters (>35 ?m diameters) than conventional step-index fibers while still maintaining near-diffraction limited beam quality. These microstructured fibers are demonstrated

APA, Harvard, Vancouver, ISO, and other styles

7

Mart, Cody W., and Cody W. Mart. "Characterization and Power Scaling of Beam-Combinable Ytterbium-Doped Microstructured Fiber Amplifiers." Diss., The University of Arizona, 2017. http://hdl.handle.net/10150/625641.

Full text

Abstract:

In this dissertation, high-power ytterbium-doped fiber amplifiers designed with advanced waveguide concepts are characterized and power scaled. Fiber waveguides utilizing cladding microstructures to achieve wave guidance via the photonic bandgap (PBG) effect and a combination of PBG and modified total internal reflection (MTIR) have been proposed as viable single-mode waveguides. Such novel structures allow larger core diameters (>35 μm diameters) than conventional step-index fibers while still maintaining near-diffraction limited beam quality. These microstructured fibers are demonstrated as

APA, Harvard, Vancouver, ISO, and other styles

8

Tsaknopoulos, Kyle Leigh. "Computational Thermodynamic and Kinetic Modeling and Characterization of Phase Transformations in Rapidly Solidified Aluminum Alloy Powders." Digital WPI, 2019. https://digitalcommons.wpi.edu/etd-dissertations/516.

Full text

Abstract:

Cold Spray is a solid-state additive manufacturing process that uses metallic feedstock powders to create layers on a substrate through plastic deformation. This process can be used for the repair of mechanical parts in the aerospace industry as well as for structural applications. Aluminum alloy powders, including Al 6061, 7075, 2024, and 5056, are typically used in this process as feedstock material. Since this process takes place all in the solid state, the properties and microstructure of the initial feedstock powder directly influence the properties of the final consolidated Cold Spray p

APA, Harvard, Vancouver, ISO, and other styles

9

Somasundaram, Aruneshwar. "Characterization of Microstructure and Mechanical Properties of Laser Powder Bed Fusion Processed Inconel 625 Alloy." University of Cincinnati / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=ucin1627658971938259.

Full text

APA, Harvard, Vancouver, ISO, and other styles

10

Tampu, Iulian Emil. "Morphological characterization of neural tissue microstructure using the orientationally-averaged diffusion MRI signal." Thesis, Linköpings universitet, Avdelningen för medicinsk teknik, 2019. http://urn.kb.se/resolve?urn=urn:nbn:se:liu:diva-158153.

Full text

Abstract:

Diffusion-weighted magnetic resonance imaging (dMRI) is a powerful tool for thecharacterisation of neural tissue microstructural features. The role of neural projectioncurvature on the diffusion signal was recently studied for three temporal regimes of the diffusion pulse sequence in search for a description of the different decay trends in the orientationally-averaged diffusion signal reported in in vivo human studies.This work experimentally investigates the effects of neural projection curvedness in one of these regimes, namely the short diffusion time regime. Multi-shell diffusion MRI acqu

APA, Harvard, Vancouver, ISO, and other styles

11

Krutz, Nicholas J. "On the Path-Dependent Microstructure Evolution of an Advanced Powder Metallurgy Nickel-base Superalloy During Heat Treatment." The Ohio State University, 2020. http://rave.ohiolink.edu/etdc/view?acc_num=osu1606949447780975.

Full text

APA, Harvard, Vancouver, ISO, and other styles

12

Payton, Eric John. "Characterization and Modeling of Grain Coarsening in Powder Metallurgical Nickel-Based Superalloys." The Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1250265477.

Full text

APA, Harvard, Vancouver, ISO, and other styles

13

Shrestha, Sulochana. "MECHANICAL CHARACTERIZATION OF Ti-6AL-4V REPAIRED BY DIRECTED ENERGY DEPOSITION IN COMPARISON WITH THE CONVENTIONAL Ti-6AL-4V." University of Akron / OhioLINK, 2021. http://rave.ohiolink.edu/etdc/view?acc_num=akron1619700926536015.

Full text

APA, Harvard, Vancouver, ISO, and other styles

14

Fonder, Jean-Baptiste. "Analyse des mécanismes de défaillance dans les transistors de puissance radiofréquences HEMT AlGaN/GaN." Thesis, Cergy-Pontoise, 2012. http://www.theses.fr/2012CERG0576/document.

Full text

Abstract:

Les HEMT AlGaN/GaN sont en passe de devenir incontournables dans le monde de l'amplification de puissance radiofréquence, grâce à leurs performances exceptionnelles. Cependant,en raison de la relative jeunesse de cette technologie, des études de fiabilité dans plusieurs modes de fonctionnement sont toujours nécessaires pour comprendre les mécanismes de défaillance propres à ces composants et responsables de leur vieillissement. Cette étude porte sur l'analyse des défaillances dans les transistors HEMT AlGaN/GaN de puissance,en régime de fonctionnement de type RADAR (pulsé et saturé). Elle s'ap

APA, Harvard, Vancouver, ISO, and other styles

15

Wang, Wei-Chen, and 王偉宸. "Microstructural Characterization of Zirconia and Titanium System Prepared by Powder Sintering." Thesis, 2005. http://ndltd.ncl.edu.tw/handle/17363456843161914776.

Full text

Abstract:

碩士<br>國立交通大學<br>材料科學與工程系所<br>93<br>Abstract Sintering 3 mol. % Y2O3-ZrO2 was reacted with titanium at temperatures ranging from 1300°C to 1500°C for 1 hour in argon atmosphere. The Microstructure of the reaction was characterized by transmission electron microscopy (TEM) and X-ray diffraction (XRD). With different atomic percent of titanium and zirconia in samples, it was expressed as AT / BZ (A mean the atomic percent of titanium; B mean the atomic percent of zirconia). TEM analysis confirmed the α-Ti and c-ZrO2 in sample 90T/10Z at 1500°C; c-ZrO2 and β�S-Ti (orthorhombic) were presen

APA, Harvard, Vancouver, ISO, and other styles

16

Chen, Hung-Yu, and 陳虹予. "Characterization of the Microstructural Evolution in the Mechanically Allyoed Ti-Al Alloy Powders." Thesis, 1996. http://ndltd.ncl.edu.tw/handle/67038928482247331237.

Full text

APA, Harvard, Vancouver, ISO, and other styles

17

蕭鎮基. "Microstructural Characterization of Ti/ZrO2 powders during sintering at 1500°C/1h in different atmospheres." Thesis, 2007. http://ndltd.ncl.edu.tw/handle/23164960356473519616.

Full text

APA, Harvard, Vancouver, ISO, and other styles

18

Bae, Jung Chan. "Characterization of the AS-solidified microstructure of vacuum gas atomized and centrifugally atomized rapidly solidified type 304 stainless steel powder." 1987. http://catalog.hathitrust.org/api/volumes/oclc/16918545.html.

Full text

Abstract:

Thesis (M.S.)--University of Wisconsin--Madison, 1987.<br>Typescript. eContent provider-neutral record in process. Description based on print version record. Includes bibliographical references (leaves 67-75).

APA, Harvard, Vancouver, ISO, and other styles

19

Wang, Tzu-Hao, and 王祖顥. "Characterizations of microstructure and thermal property of low-temperature die-bonding materials for high-power light-emitting diodes." Thesis, 2016. http://ndltd.ncl.edu.tw/handle/02450366120046019103.

Full text

Abstract:

碩士<br>國立中興大學<br>化學工程學系所<br>104<br>The high-power light-emitting diodes substitute traditional incandescent gradually because of their high luminous efficiency, electricity saving, mercury less and longer life time. Currently, only half of the input power transforms into light for light emitting diodes operation, the rest half transforms into heat. If heat cannot be dissipated timely, the luminous intensity and life time of LEDs decrease. For GaN-based LEDs, heat dissipates from LED backside, die-bonding materials, MCPCB, and heat sink. Thus, heat dissipation technology is very important in LED

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!