Browsing Dissertations & Theses by Title
Now showing items 48-67 of 192
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Enhanced Mechanical Stability Of Interlayer Dielectrics With Self-organized Molecular Pores
(Materials Science & Engineering, 2015)In order to reduce resistance-capacitance delays in interconnect structures, ultralow-k films are used as interlayer dielectric materials. In most cases the preferred method to achieve the lower dielectric constant is the ... -
Enhanced Photocatalytic Performance Of Titania Nanobelts Decorated With Gold Particles Synthesized Using Stirring-assisted Hydrothermal Method
(Materials Science & Engineering, 2015)In this thesis, anatase TiO2 nanobelts (TNBs) have been successfully obtained via an optimized stirring-assisted hydrothermal synthesis. The impact of stirring speed has been studied. Difference in morphology caused by ... -
Experimental And Numerical Study Of Phase Transition Of LiFePO₄ Material In Lithium Ion Batteries
(Materials Science & Engineering, 2014-07-14)Phase transition behavior of LiFePO4 material has been studied in this work. During electrochemical charge/discharge processes, LiFePO4 transforms into FePO4 and this electrochemically driven phase transition of the two-phase ... -
Experimental Study Of Laminated Composite Tubes Under Bending
(Materials Science & Engineering, 2007-08-23)Bending stiffness of laminated composite tubes was determined experimentally using four-point bending test. The experimental results were compared with the results obtained by the laminated plate and smear property approaches. ... -
Extension Of A Progressive Failure, Energy Dissipation, Composite Tailoring Concept To A Healing Configuration
(Materials Science & Engineering, 2011-10-11)A composite failure tailoring concept that results in a yield type response under tension has been proposed, modeled, and experimentally verified in prior research. The concept capitalizes upon a sequential, progressive ... -
Fabrication And Characeterization Of Granular Magnetic Gold Nanoparticles
(Materials Science & Engineering, 2009-09-16)In recent years, gold and magnetic nanoparticles have showed great potential in biomedical applications. Magnetic nanoparticles can be used in both in- vivo and in-vitro applications such as drug and gene delivery, ... -
Fabrication And Characterization Of Barium Titanate Thin Film On Polycrystalline Nickel Substrate
(Materials Science & Engineering, 2013-10-22)Ferroelectric BaTiO₃(BTO) thin films were deposited on polycrystalline nickel disks and silicon wafer substrates by rf magnetron sputtering. Nickel oxide (NiO) and nanocrystalline nickel (nc-Ni) layers were used as interfacial ... -
Fabrication And Characterization Of Cobalt-Diamond-like-Carbon (Co-DLC) Nanocomposites
(Materials Science & Engineering, 2008-04-22)In recent years, synthesis of magnetic nanocomposites has been receiving significant attention. These nanocomposites offer opportunities to develop active nanomaterials with various applications like magnetic data storage ... -
Fabrication And Characterization Of Single Electron Device And Study Of Energy Filtering In Single Electron Transport
(Materials Science & Engineering, 2014-03-12)Single electron devices, in which transport of single electrons is precisely controlled, hold a great promise as important components of future electronic devices and sensors. However, technical challenges have prevented ... -
Fabrication Of FePt Ferromagnetic Nanoparticles
(Materials Science & Engineering, 2008-08-08)Fabrication of chemically disordered FePt particles ranging from 2 - 9 nm with a precision of 1 nm has been achieved through modification of key process variables including surfactant concentration, heating rates and the ... -
FABRICATION OF SOLID POLYMERIC 3D SHAPES FROM PROGRAMMABLE FLAT HYDROGEL SHEETS
(2018-05-24)Modern methods of fabricating three-dimensional (3D) objects include sheet metal forming, thermoforming, and additive manufacturing among others. These methods have their own advantages and disadvantages regarding scalability, ... -
First-principles Studies On N-type And P-type Doping In Cuprous Oxide
(Materials Science & Engineering, 2012)We have performed studies on n-type and p-type cuprous oxide with and without doping by first principles methods. Generalized Gradient Approximation (GGA) is used for the geometry optimization. The total energy and the ... -
Formation Of Au Nanoparticles Through Reaction Of Na₃Au(SO₃)₂ By Electrochemically Evolved Hydrogen
(Materials Science & Engineering, 2010-07-19)Hydrogen evolution during electrochemical deposition has long been regarded as undesired and deliberately suppressed since small hydrogen bubbles could cause a rough surface of deposits. Here, we demonstrate a new role for ... -
Fundamental Understanding Of Soot Induced Wear Mechanism Of Diesel Engines
(Materials Science & Engineering, 2014-09-17)Emission of Oxides of nitrogen and particulates matters from diesel engines have been reduced by implementing exhaust gas recirculation (EGR) protocols but at the expense of increased wear of engine components. This ... -
GOLD-NANOPARTICLE-BASED THERANOSTIC AGENTS FOR RADIOTHERAPY OF MALIGNANT SOLID TUMORS
(2016-09-15)Radiation therapy is one of the three major methods of cancer treatment. The fundamental goal of radiotherapy is to deliver high radiation doses to targets while simultaneously minimizing doses to critical structures and ... -
Gold/ Copper Sulphide And Gold Nanoparticles For Application In Cancer Therapy
(Materials Science & Engineering, 2012-04-11)The main goal of this research is to use Gold/ Copper Sulphide (Au/ CuS) and Gold nanoparticles (AuNPs) for improving the therapeutic effects in the treatment of cancer. One of the biggest successes in photothermal therapy ... -
Grain Structure Evolution Of Tin-based Lead-free Solder Joints In Electronic Packaging Assembly And Its Impact On The Fatigue Reliability
(Materials Science & Engineering, 2014-03-12)Solder is one of the main joints materials used in the electronics for decades of years. It is not only the mechanical support but also conducts the electric signals in the electronics. However, the regulation of lead ... -
Growth Mechanism And Interface Effects On Microstructure Of Perovskite-type Barium Titanate-based Epitaxial Films
(Materials Science & Engineering, 2012-07-25)This work was motivated and focused on the growth mechanism, microstructures and interfaces of barium titanate, BaTiO₃ (BTO), based epitaxial thin films. Transimission electron microscopy (TEM), high resolution TEM (HRTEM), ... -
GUANIDINIUM BASED ANION EXCHANGE MEMBRANES FOR SOLID POLYMER ALKALINE FUEL CELL APPLICATIONS
(2015-12-09)Low temperature traditional PEM Fuel Cells and also other fuel cells in general suffer from the acute yet long standing issues of cost and performance. This has severely hindered the commercialization of fuel cells but ... -
Hierarchical microstructures to overcome the conflict between strength and toughness of hard coatings: TiN/Ni as a model system
(2022-07-13)In the recent times, industry's production speed has been increasing and thus, the production of parts needs to adapt and so do the materials used to manufacture them. Hence, tools exposed to more extreme conditions using ...