Browsing Colleges and Schools by Author "Qian, Xiaofeng"
Now showing items 1-19 of 19
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A COMPUTATIONAL STUDY OF THERMAL CONDUCTIVITY OF FREESTANDING H-BN STRUCTURES
Dong, Mingxin (2020-04-22)The fact that hexagonal boron nitride (h-BN) has remarkable thermal transport property, mechanical property and chemical stability provides endless possibilities in nanoscale thermal device designing. In this study, we ... -
A Study of Helium Bubble Formation by Single and Dual Ion Implantation
Sackman, Joseph Robert (2019-05-16)Helium bubble formation in materials is a concern for both modern day nuclear reactors as well as the next generation. Helium trapped in an atomic lattice has a tendency to form bubbles that may cause blisters, flaking, ... -
ATOMISTIC SIMULATIONS OF HYDROGEN EMBRITTLEMENT IN PALLADIUM
Leng, Han (2017-12-04)Palladium hydrogen system has unique catalytic activities and up to 1:1 hydrogen adsorption capability. It is studied in the context of hydrogen embrittlement, which is a subset of stress corrosion cracking, with classical ... -
Design of Low-Dimensional Materials for Energy Storage, Computing, and Catalysis Based on Electronic Structure Considerations
Parija, Abhishek (2019-07-22)The known crystal structures of solids often correspond to the most thermodynamically stable arrangements of atoms. Yet, oftentimes there exist a richly diverse set of alternative structural arrangements that lie at only ... -
Developing a Synthetic Toolkit for Multi-Component Metal–Organic Frameworks
Yuan, Shuai (2018-07-27)Metal–organic frameworks (MOFs) are an emerging class of porous materials constructed from metal-containing nodes and organic linkers. Due to their structural and functional tunability as well as their ever-expanding ... -
Effect of Processing Conditions on the Scratch and Mar Behavior of TPO Systems
Gundi, Mukund Shastry (2016-05-04)Thermoplastic Olefins (TPO) possessing properties such as low density and recyclability are widely used in the automotive industry as a material of choice for numerous car parts and components. Scratch and mar damage reduces ... -
Electronic and Thermoelectric Properties at the Interface of Organic Thermoelectric Materials
Hsu, Jui-Hung (2018-04-30)Composites made of poly(3,4-ethylenedioxythiophene):poly(styrenesulfonate) (PEDOT:PSS) and carbon nanotube (CNT) have shown unchanged or even increased thermopower when electrical conductivity was raised by altering the ... -
First Principles Investigation of Structural, Mechanical and Thermodynamic Properties of MAX Phases
Son, Woongrak (2018-07-26)MAX phases are layered carbides or nitrides with general formula of Mvn+1AXvn. In this work we present a first principles investigation of structural, mechanical, and thermodynamic properties of MAX phases. Up to date ... -
First-Principles Theory, Discovery, and Design of Nonlinear Optical Materials
Wang, Hua (2020-04-06)Nonlinear light-matter interaction plays a key role in the understanding, probing, and ultimately controlling light and matter. In particular, materials with strong nonlinear optical responses are highly desirable for many ... -
Heated Atomic Force Microscope Cantilevers For Polymer Based Additive Nanomanufacturing
Soleymaniha, Mohammadreza (2019-05-23)This dissertation demonstrates the design, simulation, fabrication and characterization processes of a novel heated atomic force microscope cantilever for polymer based additive nanomanufacturing. Fabrication and integration ... -
Investigation on Piezoelectric and Dielectric Properties of PVDF and Poly-Amino-Di-Fluoro-Borane (PADFB)
Dhannoon, Diyar Jamal (2017-07-17)PVDF (polyvinylidene difluoride) is a well-known piezoelectric polymer that has nine polymorphs. This work reviews these polymorphs with respect to their thermal, mechanical and dynamical stability. Here, it is demonstrated ... -
Lewis Acidic Behavior of Antimony: Applications in Catalysis and Anion Binding
You, Di (2019-11-26)Over the past decade, the chemistry of σ-accepting or Z-type ligands based on main group elements has drawn renewed attention because of the realization that their interaction with a transition metal (M) could be used to ... -
Nano-Enabled Hydrogels for Continuous Surface Enhanced Raman Spectroscopy Monitoring of Metabolites
You, Yilhwan (2019-01-28)Chronic disease management can benefit from continuous real time tracking of disease relevant biochemical levels using minimally invasive implants. Current methods however rely on electrochemical sensing methods integrated ... -
Pinning Enhancement for YBa2Cu3O7-δ (YBCO) and Iron Chalcogenide Thin Films
Huang, Jijie (2016-12-06)Over the past two decades, YBa2Cu3O7-δ(YBCO) has aroused great research interests, owing to its high transition temperature (Tc) of above 90 K and some other advantages. However, most of the practical applications of YBCO ... -
Synthesis and Characterization of Novel MAX Phase Solid Solutions in the A Sublattice
Prehn, Evan Miles (2020-01-30)MAX phases are a rapidly expanding family of atomically-layered carbides and nitrides known for their characteristically high temperature stability, excellent thermal shock resistance, good mechanical properties, and easy ... -
The Influence of Hydrogen Content on Thermo-Mechanical Properties of Nickel-Aluminum
Aslan, Ugur (2017-06-02)The effect of hydrogen on thermo-mechanical properties and in-use performance of metals and metal alloys is of critical importance, in particular in structural applications. In recent years, the relevance of H-metal ... -
Theoretical Studies on Temperature-Induced Molecular Rearrangement of Ionic Liquids Under Nanoconfinement
Huang, Lan (2019-10-29)Nanoconfinement is a solution to overcome high cost, high viscosity and slow diffusion rate of bulk ionic liquids. Moreover, the nanoconfined ionic liquids partially solve the leakage problem and enlarge the applications ... -
Tuning Metal-Organic Frameworks and Porous Polymers for Gas Storage and Separations
Bosch, Mathieu R (2017-07-18)The focus of this research is to investigate how the exact shape, functionalization, and pore structure, specifically the distribution and filling of meso- and micropores, affects the chemical environment within the pores, ... -
Two-Dimensional Bismuth-Based Layered Supercell for Multiferroism
Li, Leigang (2017-04-28)Room-temperature multiferroics, possessing ferroelectricity and ferromagnetism simultaneously in one phase, hold great promise in miniaturized devices including sensors, actuators, transducers, and multi-state memories. ...