Index Catalog // Arch : Northwestern University Institutional Repository

Electrostatically Driven Transformation in Assembly of Charged Amphiphiles

Description:: Self-assembly is an important process in biological system to build various bioactive structures from small amphiphilic molecules. The structural versatility of amphiphile self- assembly also provides a unique platform for the design of functional soft materials with controllable structural features. However, little is known about the correlation between external stimuli,...
Keyword:: Engineering
Subject:: Materials Science and Engineering
Creator:: Changrui Gao
Owner:: Scholarly Digital Publishing
Date Uploaded:: 09/30/2019
Date Modified:: 09/30/2019
Date Created:: 1/1/2018
Resource Type:: Dissertation

Nanoscale Investigation of Platinum Nanoparticles on SrTiO3 Grown via Physical Vapor Deposition and Atomic Layer Deposition

Description:: This dissertation examines growth of platinum nanoparticles from vapor deposition on SrTiO3 using a characterization approach that combines imaging techniques and X-ray methods. The primary suite of characterization probes includes atomic force microscopy (AFM), grazing-incidence small-angle X-ray scattering (GISAXS), X-ray fluorescence (XRF), scanning electron microscopy (SEM), and X-ray absorption spectroscopy...
Keyword:: Material Science and Engineering
Subject:: Materials Science and Engineering
Creator:: Steven Christensen
Owner:: Scholarly Digital Publishing
Date Uploaded:: 10/01/2018
Date Modified:: 10/01/2018
Date Created:: 2008-12-08
Resource Type:: Dissertation

Improved Transparent Conducting Oxides Through Modulation-Doped ZnO/ZnMgO Thin Films

Description:: ZnO is a member of the unique class of materials known as transparent conducting oxides (TCOs). TCOs are currently used for many applications including flat panel displays, solar cells, and energy efficient windows. Of particular interest is the possibility of developing materials that have high electron mobilities, such that conductivities...
Keyword:: Engineering
Subject:: Materials Science and Engineering
Creator:: David John Cohen
Owner:: Scholarly Digital Publishing
Date Uploaded:: 10/01/2018
Date Modified:: 10/01/2018
Date Created:: 2008-12-03
Resource Type:: Dissertation

Thermal Properties of Wood-Derived Silicon Carbide and Copper-Silicon Carbide Composites

Description:: Wood-derived ceramics and composites have been of interest in recent years due to their unique microstructures, which lead to tailorable properties. The porosity and pore size distribution of each wood type is different, which yields variations in properties in the resultant materials. The thermal properties of silicon carbide ceramics and...
Keyword:: Engineering
Subject:: Materials Science and Engineering
Creator:: Kristen Pappacena
Owner:: Scholarly Digital Publishing
Date Uploaded:: 10/01/2018
Date Modified:: 10/01/2018
Date Created:: 2008-12-04
Resource Type:: Dissertation

Computational Design and Analysis of High Strength Austenitic TRIP Steels for Blast Protection Applications

Description:: Recent assessment of material property requirements for blast resistant applications, especially for the naval ship hulls, has defined the need to design steels with high stretch ductility and fragment penetration resistance, along with high strength and adequate toughness. Using a system based computational materials design approach, two series of austenitic...
Keyword:: Engineering
Subject:: Materials Science and Engineering
Creator:: Padmanava Sadhukhan
Owner:: Scholarly Digital Publishing
Date Uploaded:: 09/19/2018
Date Modified:: 09/19/2018
Date Created:: 2008-08-26
Resource Type:: Dissertation

Science-Based Design of High-Performance Bubblegum

Description:: A multicomponent bimodal poly(vinyl acetate) (PVAc) polymer composite has been scientifically designed to increase biaxial plastic flow stabilization for the achievement of large biaxial deformations. For this, a systems-based approach was used for the computational materials design of a high performance bubblegum whose mean in-vivo bubble diameter exceeds that of...
Keyword:: Engineering
Subject:: Materials Science and Engineering
Creator:: Leslie Dale Morget
Owner:: Scholarly Digital Publishing
Date Uploaded:: 09/18/2018
Date Modified:: 09/18/2018
Date Created:: 2008-11-25
Resource Type:: Dissertation

Processing and Properties of Porous NiTi

Description:: Increasing interest in long-life bone implants with reduced mechanical properties reducing the stress-shielding effect and a structure mimicking bone porous architecture has encouraged study and development of fabrication methods for porous NiTi. The main objective of this work was to advance these goals by developing new processing procedures for porous...
Keyword:: Engineering
Subject:: Materials Science and Engineering
Creator:: Ampika Bansiddhi
Owner:: Scholarly Digital Publishing
Date Uploaded:: 09/13/2018
Date Modified:: 09/13/2018
Date Created:: 2008-10-23
Resource Type:: Dissertation

Computational Design of Precipitation-Strengthened TiNi-Based Shape Memory Alloys

Description:: Motivated by performance requirements of future medical stent applications, experimental research addresses the design of novel TiNi-based, superelastic shape-memory alloys employing nanoscale precipitation strengthening to minimize accommodation slip for cyclic stability and to increase output stress capability for smaller devices. Using a thermodynamic database describing the B2 and L21 phases...
Keyword:: Material Science and Engineering
Subject:: Materials Science and Engineering
Creator:: Matthew D. Bender
Owner:: Scholarly Digital Publishing
Date Uploaded:: 09/13/2018
Date Modified:: 09/13/2018
Date Created:: 2008-07-21
Resource Type:: Dissertation

The Structural, Mechanical, and Osmotic Properties of Acrylic Triblock Copolymer Gels Determined by Self-Consistent Mean Field Theory and Experiment

Description:: In recent years, research has expanded the uses of triblock copolymer gels to a wide variety of applications including everything from ceramics processing to regenerative medicine and drug delivery. The research presented in this dissertation focuses on a physically crosslinked, block copolymers gel system in a selective solvent. This system...
Keyword:: Material Science and Engineering
Subject:: Materials Science and Engineering
Creator:: Rafael Edmundo Bras
Owner:: Scholarly Digital Publishing
Date Uploaded:: 09/13/2018
Date Modified:: 09/13/2018
Date Created:: 2008-06-23
Resource Type:: Dissertation

Patterning and Structural Engineering of Dimensionally Constrained Functional Oxide Nanostructures

Description:: The current trend of ceramic nanotechnology has motivated an ever-increasing need to achieve exquisite control over size, shape, and spatial confinement for functional oxide architectures, in an equivalent manner demonstrated for semiconductors. However, the unique nature of ceramics has posed major challenges for most traditional nanofabrication technologies, putting the development...
Keyword:: Engineering
Subject:: Materials Science and Engineering
Creator:: Zixiao Pan
Owner:: Scholarly Digital Publishing
Date Uploaded:: 09/06/2018
Date Modified:: 09/06/2018
Date Created:: 2008-03-17
Resource Type:: Dissertation

Self-Assembly of Organic Semiconductors and their Mineralization into Hybrid Nanostructures

Description:: This dissertation demonstrates how self-assembly can direct nanoscale ordering and optimize electronic properties of organic semiconductors, as well as organic-inorganic hybrids. In excitonic solar cells, controlling the ordering and interfaces between electron-transporting (n-type) and hole-transporting (p-type) domains is crucial. In addressing this challenge, hybrid nanostructures were designed by mineralization of...
Keyword:: Material Science and Engineering
Subject:: Materials Science and Engineering
Creator:: Marina Sofos
Owner:: Scholarly Digital Publishing
Date Uploaded:: 08/30/2018
Date Modified:: 08/30/2018
Date Created:: 2007-12-10
Resource Type:: Dissertation

Ceramic Anode Materials with Nanoscale Electrocatalysts for Solid Oxide Fuel Cells

Description:: The work presented in this dissertation focuses on ceramic anode materials for solid oxide fuel cells (SOFCs). The primary goal was to characterize the anode and relate the electrochemical behavior to the microstructure. The anode that was most extensively studied in this work was a composite of Gd0.10Ce0.90O1.95 (GDC) and...
Keyword:: Materials Science and Engineering
Subject:: Materials Science and Engineering
Creator:: Worawarit Kobsiriphat
Owner:: Scholarly Digital Publishing
Date Uploaded:: 08/29/2018
Date Modified:: 08/29/2018
Date Created:: 2007-11-30
Resource Type:: Dissertation

Nanostructure Fabrication Using Inorganic Sols and Electron Beam Lithography

Description:: Dimensionally constrained material systems are at the forefront of current materials research because of their novel and often enhanced physical, chemical and biological properties. The dimensionality effects are pervasive through different classes of materials including ceramics, metals and polymers. Often times dimensionality effects are manifested as internal structure variations in...
Keyword:: Material Science and Engineering
Subject:: Materials Science and Engineering
Creator:: Suresh Kumar Donthu
Owner:: Scholarly Digital Publishing
Date Uploaded:: 08/27/2018
Date Modified:: 08/27/2018
Date Created:: 2007-12-06
Resource Type:: Dissertation

Oxide Surfaces in Practical and Model Catalytic Systems

Description:: Oxide surface structures play a key role in many technological processes, including catalysis, thin film growth, and layered structures, and a thorough understanding of surface structures and surface structure dynamics is required in order to better engineer materials systems for these processes. This research works towards understanding these fundamental principles...
Keyword:: Engineering
Subject:: Materials Science and Engineering
Creator:: Courtney Lanier
Owner:: Scholarly Digital Publishing
Date Uploaded:: 08/01/2018
Date Modified:: 08/01/2018
Date Created:: 2007-08-17
Resource Type:: Dissertation

Nanoscale Mechanics of Ductile Interphases in Solid Solution Directionally Solidified Eutectic Composites

Description:: Ceramic matrix composites are known for their low density, high strength and high stiffness, but lower fracture toughness compared to metal matrix composites. The addition of a reinforcing agent within the matrix can increase the toughness of the composite via many strain energy absorption mechanisms such as plastic deformation. This...
Keyword:: Materials Science and Engineering
Subject:: Materials Science and Engineering
Creator:: Nasim Alem
Owner:: Scholarly Digital Publishing
Date Uploaded:: 05/22/2018
Date Modified:: 05/22/2018
Date Created:: 2007-04-25
Resource Type:: Dissertation

Optical and Magneto-Optical Properties of Ferromagnetic InMnAs Thin Films and its Alloys

Description:: The optical and magneto-optical properties of the ferromagnetic semiconductors, InMnAs and its alloy InMnAsP were investigated to determine the band structure and nature of the ferromagnetism in these materials. Alloys were grown by metal-organic vapor phase epitaxy. Infrared absorption of InMnAs was investigated to determine the presence and properties of...
Keyword:: Material Science and Engineering
Subject:: Materials Science and Engineering
Creator:: Phillip Tang Chiu
Owner:: Scholarly Digital Publishing
Date Uploaded:: 05/22/2018
Date Modified:: 05/22/2018
Date Created:: 2007-04-18
Resource Type:: Dissertation

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Electrostatically Driven Transformation in Assembly of Charged Amphiphiles

Nanoscale Investigation of Platinum Nanoparticles on SrTiO3 Grown via Physical Vapor Deposition and Atomic Layer Deposition

Improved Transparent Conducting Oxides Through Modulation-Doped ZnO/ZnMgO Thin Films

Thermal Properties of Wood-Derived Silicon Carbide and Copper-Silicon Carbide Composites

Computational Design and Analysis of High Strength Austenitic TRIP Steels for Blast Protection Applications

Science-Based Design of High-Performance Bubblegum

Processing and Properties of Porous NiTi

Computational Design of Precipitation-Strengthened TiNi-Based Shape Memory Alloys

The Structural, Mechanical, and Osmotic Properties of Acrylic Triblock Copolymer Gels Determined by Self-Consistent Mean Field Theory and Experiment

Patterning and Structural Engineering of Dimensionally Constrained Functional Oxide Nanostructures

Self-Assembly of Organic Semiconductors and their Mineralization into Hybrid Nanostructures

Ceramic Anode Materials with Nanoscale Electrocatalysts for Solid Oxide Fuel Cells

Nanostructure Fabrication Using Inorganic Sols and Electron Beam Lithography

Oxide Surfaces in Practical and Model Catalytic Systems

Nanoscale Mechanics of Ductile Interphases in Solid Solution Directionally Solidified Eutectic Composites

Optical and Magneto-Optical Properties of Ferromagnetic InMnAs Thin Films and its Alloys

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