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.
Results
Showing 1 to 20 of 39 for “"nano particle"”.
-
Nano-particle count estimation in light microscopy images
Submission published under a 24 month embargo labeled 'Closed Access', the embargo will last until 2027-05-01
-
Layer by Layer, Nano-particle "Only" Surface Modification of Filtration Membranes
… deposition using primarily inorganic silica nanoparticles is employed for the modification of polymeric micro and ultrafiltration (MF/UF) membranes to produce thin film composites (TFC) with potential nanofiltration (NF) and reverse osmosis (RO) capabilities.. A variety of porous substrate …
-
Mechanical property characterization of metal nano-particle films for MEMS devices
… of microns. In the micron-thickness regime, nanoparticle-based inks are the preferred means for material delivery, in large part due to the ability to deliver high solids content. However, sintered nanoparticle films possess unique morphology and hence different properties when compared to …
-
Study of organic molecules and nano-particle/polymer composites for flash memory and switch applications
… The application of organic molecules and nano-particle/polymer composites for flash memory and switch applications is studied in this dissertation. Facilitating data storage on individual small molecules as the approach the limits in miniaturization for ultra-high density and low power …
-
In-Situ Studies of Copper Nanoparticles Using a Novel Tandem Ultra-High Vacuum Particle Production Chamber Transmission Electron Microscope
Nanophase materials, a compaction of nano-particles, are arguably a new phase of matter whose high grain-boundary-to-volume ratio leads to new and enhanced material properties. Previously, these materials have been difficult to study because of their sensitivity to contaminating atmospheres. We …
-
Epoxy Siloxane Self-Cleaning Coating using F64PcZn/TiO2 Photocatalyst Composite
… (NIR) region, was prepared by coating a nano-particle photocatalytic TiO<sub>2</sub> with 3% w/w of F<sub>64</sub>PcZn photosensitizer resulting in a dark green powder. The F<sub>64</sub>PcZn/P25 TiO<sub>2</sub> composite exhibited a greater photo-induced degradation of methyl red, a …
-
Deagglomeration and mixing via the rapid expansion of high pressure and supercritical suspensions
Nano-materials are the focus of many research activities due to the desirable properties imparted from their small grain size and high interfacial surface area. However, these materials are highly cohesive powders in the dry state and typically form large agglomerates, leading to a diminished …
-
Experimental and numerical analysis of nano-enhanced polymer coated steel plates subjected to ballistic loading
… of research for a portion of the project titled Nano-Enhanced and Bio-Inspired Composite Materials for Mitigation and Protection of TIH Railcars and Stationary Tanks Against High Power Impact. This research investigated several nano-enhanced polymers for their suitability in high-speed impact …
-
The Effects of Particles Momentum Transfer in Shock Wave/Boundary Layer Interaction
Numerical simulations of solid particles seeded into a supersonic flow containing an oblique shockwave reflection were performed in order to observe and understand the momentum transfer effects between solid and gas phases in shock-wave / boundary layer interaction. Particle size and mass loading …
-
Crosslinked conventional size and nanoparticle size acrylic latexes and their blends: Investigation of the effects of crosslinking, particle size and distribution, glass transition temperature and blending on film formation, properties and morphology
… or post-coalescence) and level of crosslinking, particle size (nano particle size ~ 20-25 nm vs. conventional particle size ~ 120-130 nm) and distribution, glass transition temperature (Tg), and blending on latex film formation process, properties and latex morphology. Films cast from these …
-
Synthesis of biodegradable hydrogel microparticles for vaccine protein delivery
… For example, it has been shown that micro- and nano-particle mediated delivery of protein antigen can use up to 100 times less protein and still produce an effective immune response [1]. In order to use this phenomenon to make vaccines more efficient, we need a biodegradable delivery particle. …
-
Investigation into coatings produced from nanoparticle blended feedstock for rotating equipment repair applications
Coating of carbon steel with conventional and nano particle blended feedstock material is considered in relation to repair applications of rotating equipment. Gas Metal Arc Welding (GMAW) and Wire Arc Spray (WAS) processes are used to produce the coatings on carbon steel workpieces. The wire arc …
-
Terahertz response of microfluidic-jetted fabricated 3D flexible metamaterials
… to form a 3D metamaterial structure. Conductive nano-particle Ag, Cu and semiconductor polymer fluids are used as structural mediums. The metamaterials are fabricated on polyimide substrate. Their flexible nature will be advantageous in future device innovations. In order to obtain …
-
Electroless Nickel Plating and Spark Plasma Sintering of nano ZrO2 for Mechanical Property Enhancement
… of fracture toughness improvement of ZrO2. Nano-grained yttria stabilized zirconia (YSZ) particles of 100nm average diameter were coated with about 1-5 nm of nickel coating by ENP. To reduce nano particle agglomeration throughout the ENP process; vigorous agitation with an ultrasonic horn …
-
Modelling and computational analysis of heat-transfer in multi-geometry and multi-phase flow of Newtonian and non-Newtonian fluids in pipes and channels
… Newtonian fluids, Newtonian-Fluid-Based- Nanofluids, and non-Newtonian fluids are all considered in the thesis. The Newtonian-Fluid-Based Nanofluids (NFBN) are designed from the homogeneous mixing of a Newtonian base-fluid with solid nano-particles. Water will be used as the Newtonian …
-
Low-Temperature Sintering of Nanoscale Silver Paste for Semiconductor Device Interconnection
… relationships of low-temperature sintering of nanoscale silver pastes. The nanoscale silver pastes have been formulated by adding organic components (dispersant, binder and thinner) into nano-silver particles. The selected organic components have the nano-particle polymeric stabilization, paste …
-
Transient Liquid Phase Diffusion Bonding of Magnesium Alloy (Mg-AZ31) to Titanium Alloy (Ti-6Al-4V)
… of intermetallics at the joint. The effect of Cu nano-particles in the coatings was found to decrease the eutectic zone width and this resulted in an increase the shear strength of the joints. The highest shear strength of 69 MPa was possible with bonds made using coatings containing Cu …
-
An investigation of the synthesis and properties of nano crystalline Y2O3:Eu3+ (prepared using micelle- based precursors)
… on heating Y2O3:Eu3+ phosphor precursors in the nano particle size regime. Herein combustion syntheses to prepare nanometer sized crystallites of cubic Y2O3:Eu3+ using precursors containing sacrificial long chain alkylammonium cations (the fuel) are reported. Using this method it proved possible …
-
Spectroscopic Measurements of the Combustion of Aluminum and Aluminum-Based Energetic Material Particles Using a Heterogeneous Shock Tube
… questions remain about the behavior of aluminum particles, particularly at small particle sizes where the traditional optical imaging techniques can no longer be employed. This study looks at the behavior of small (10 mum and smaller) aluminum and aluminum-based particles, including aluminum …
-
Integrated plasmonic nano-antenna devices
… devices. An example of a plasmonic device is a nano-antenna. Although nano-antennas are applied in biological sensing, imaging and nano-particle manipulations, they are passive devices that must be driven by an external source. As combining plasmonic nano-antennas with micro-lasers is the main …
Page 1 of 2