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Filtering by: Academic Affiliation Mechanical, Industrial, and Manufacturing Engineering Remove constraint Academic Affiliation: Mechanical, Industrial, and Manufacturing Engineering Decade 2010-2019 Remove constraint Decade: 2010-2019 Degree Field Materials Science Remove constraint Degree Field: Materials Science

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Crystallization Rates of AIST and Ge Thin Films by Optical and Electron Microscopy

Creator:

Bird, Victoriea L.

Abstract:

The amorphous to crystalline phase change is of great interest for the production and operation of phase change memory and germanium electronic devices. Phase change memory relies on the ability to differentiate between differences in optical or electrical properties between the amorphous and crystalline phases of a single material. Amorphous...

Resource Type:

Masters Thesis
Investigation of Thermal Degradation in Structural Alloys for Nuclear Power Systems

Creator:

Teng, Fei

Abstract:

The thermal degradation of structural materials is considered to be a key factor for evaluating the lifetime of current nuclear power plants. Ni-based and Fe-based alloys, such as 690, 625, 304, and 316, are widely used in nuclear industry as structural components due to the extraordinary corrosion resistance and mechanical...

Resource Type:

Dissertation
Functional Materials and Techniques for Additive Manufacturing in Soft Robotics

Creator:

Walker, Stephanie

Abstract:

This thesis outlines the development of new elastomeric materials and manufacturing processes for soft robotics. Specifically, this work describes the development of custom material formulations for use in additive manufacturing, additive manufacturing processing techniques for silicone elastomers, and multi-component additive manufacturing techniques. Material synthesis and processing is a gap in...

Resource Type:

Dissertation
A Manufacturing Process Design for Producing a Membrane-based Energy Recovery Ventilator with High Aspect Ratio Support Ribs

Creator:

Kawula, Steven P.

Abstract:

Heating, ventilation, and air conditioning systems represent nearly half of building energy usage in the United States. Recent building regulations requiring increased air turnover within buildings will result in even greater air conditioning usage. To alleviate these concerns, membrane-based heat-and-moisture exchangers known as energy recovery ventilators have been developed to...

Resource Type:

Masters Thesis
Influences of Replacing Cr with Mo in Fe25Co25Ni25Cr25-XMoX High Entropy Alloy Series on the Microstructure and Mechanical Properties

Creator:

Xu, Yifan

Abstract:

Fe25Co25Ni25Cr25-XMoX High Entropy Alloys were fabricated in mini arc-melter and then cast into 4mm diameter cylinders by injection casting technique and 1cm diameter cylinders by water quenching technique. Heat transfer modeling during solidification of FeCoNiCr HEA was simulated. Combining X-Ray Diffraction, Optical Microscopy, Scanning Electron Microscope, Energy Dispersive X-ray analysis,...

Resource Type:

Masters Thesis
The Use of Various Morphologies of Nanocellulose as Life Long Anodes of Sodium Ion Batteries

Creator:

Schardt, Jenna

Abstract:

Sodium-ion batteries (SIBs) require the use of a highly reversible anode. To form this anode carbon nanofibers and nanocrystals are derived from cellulose nanofibers, cellulose nanocrystals, and bacterial nanocellulose. The primary structure of the cellulose nanofibers is maintained when carbonized allowing for high surface area in the structure. The carbon...

Resource Type:

Masters Thesis
Characterization and Development of Ni-based Superalloys for Supercritical Carbon Dioxide Applications

Creator:

Adam, Benjamin M.

Abstract:

The advent of supercritical CO2 as a new heat-exchange medium has seen strong interest from the power industry and the energy research field recently. It is advan- tageous in comparison with other heat-exchange cycles, as it can be operated safely at much higher temperatures and pressures, thus increasing the thermal...

Resource Type:

Dissertation
Chemical Solution Deposition and in-situ Structural Characterization of Pb-free, Bi-based, Piezoelectric Thin Films

Creator:

Fox, Austin J.

Abstract:

This work explores the electric field induced strain mechanisms in environmentally benign Bi0.5Na0.5TiO3 (BNT) based piezoelectric thin films. Although BNT-based materials show promise as replacements for toxic Pb-based piezoelectrics, the displacement mechanisms are not consistent between thin films and bulk materials, and the differences have yet to be well understood....

Resource Type:

Dissertation
Developing a Methodology to Study the Effects of Adhesive Flow Penetration on Wood Adhesive Bond Performance by using Micro X-ray Computed Tomography (XCT) and Digital Volume Correlation (DVC)

Creator:

Ching, Daniel Jackson

Abstract:

Wood composites are an important renewable structural material which can be a net carbon sink when used in combination with sustainable forest management practices and high rates of log utilization. Adhesive bondlines are an essential part of composites, and for wood composites, they determine the moisture durability and mechanical performance...

Resource Type:

Dissertation
Characterization of Low Temperature Crystallization Growth Parameters of the Growth-dominated Phase Change Materials: Ge1Sb6Te1 and Ga15Sb85 by Optical Microscopy

Creator:

Winseck, Mark M.

Abstract:

Phase change memory materials are a set of chalcogenide or pnictogenide materials systems currently being researched for use in optical and resistive based memory systems due to their large change in optoelectronic properties between the amorphous and the crystalline states. For these materials systems to be considered as a suitable...

Resource Type:

Masters Thesis
Microstructural Characterization of Porosity in U-Mo Low Enriched Uranium Plate Fuel

Creator:

Westman, Bjorn E.

Abstract:

New low enriched uranium (LEU) fuels are being developed for replacement of high enriched uranium (HEU) fuels in high power research reactors. U-Mo LEU plate fuels have been identified as a candidate for replacement of current HEU fuels. However, U-Mo fuels tend to exhibit accelerated swelling typically at fission densities...

Resource Type:

Masters Thesis
Corrosion Resistance of Alloys in Seawater and Supercritical Carbon Dioxide Environments

Creator:

Repukaiti, Reyixiati

Abstract:

The corrosion resistances of several alloys were investigated to optimize performance and cost in seawater and supercritical CO2 environments. Many alloys are prone to corrosion in seawater and/or supercritical CO2 containing impurity environments. Exposure and electrochemical experiments were conducted in both environments to evaluate alloys’ corrosion resistance. In seawater corrosion...

Resource Type:

Masters Thesis
Time-Dependent Crack Growth Mechanisms in Alloy 617 at 800°C in Air

Creator:

Addison, Dylan, A.

Abstract:

Time-dependent crack growth mechanisms in Alloy 617 at 800°C in air were studied using compact tension samples machined in the L-T direction, cracked at temperature using an induction furnace and servo-hydraulic load frame. The application of different loading waveforms, including triangular, hold time, and sustained loading, were studied with relation...

Resource Type:

Masters Thesis
Thin Films via Chemical Solution Deposition Synthesis from the (Bi₀.₅Na₀.₅)TiO₃-(Bi₀.₅K₀.₅)TiO₃-Bi(Mg₀.₅Ti₀.₅)O₃ Ternary System

Creator:

Mendez, Jose Eduardo

Abstract:

The ternary system (Bi₀.₅Na₀.₅)TiO₃-(Bi₀.₅K₀.₅)TiO₃-Bi(Mg₀.₅Ti₀.₅)O₃ (BNT-BKT-BMgT) was explored along the [75-(x 2) ]Bi₀.₅Na₀.₅TiO₃ - [25-(x 2)]Bi₀.₅K₀.₅TiO₃ - [x]Bi(Mg₀.₅Ti₀.₅)O₃ composition line. Thin films were fabricated using chelated mixing route solutions spin cast onto platinized silicon substrates. Processing parameters such as: excess cation molar%, solution molality, and crystallization temperatures, for composition where x=0,...

Resource Type:

Masters Thesis
An Investigation on Nanoscale-shape-mediated Coupling Between Temperature and Densification in Intense Pulsed Light Sintering of Silver Nanoparticles

Creator:

Bansal, Shalu

Abstract:

In Intense Pulsed Light (IPL) sintering, pulsed large-area visible light from a xenon lamp is absorbed by nanoparticle films or patterns and converted to heat, resulting in rapid sintering of the nanoparticles. This work experimentally characterizes IPL sintering of silver nanoparticle films. A newly observed turning point in the evolution...

Resource Type:

Masters Thesis
Graphene Biotransistors, an Exploration of Neurosensing and Biofilm-sensing Applications

Creator:

Brown, Morgan A.

Abstract:

Atomically-thin graphene sheets have unprecedented characteristics for biosensing applications. These characteristics include mechanical flexibility and strength, optical transparency, electrical sensitivity and biocompatibility. The primary theme of this dissertation is the characterization and application of graphene field-effect transistors (FETs) in biologically-relevant physiological environments.Understanding the interface that forms between an electrolyte and...

Resource Type:

Dissertation
Reaction Pathways of Oxo-Hydroxo Group 5 Clusters to Metal Oxide Thin Films

Creator:

Mansergh, Ryan H.

Abstract:

Oxo-hydroxo Group 5 metal clusters are an untapped resource to study and advance aqueous solution processing of metal oxide thin films. The tetramethylammonium (TMA) hexatantalate salt (TMA6[H2Ta6O19]) yields dense Ta2O5 films (~95% of the bulk ß-Ta2O5 density) with atomically smooth surfaces (<4 Å root mean square surface roughness). This same...

Resource Type:

Dissertation
Development of Cu-based Thin Films for Optoelectronic Applications

Creator:

Angelos, Gregory S.

Abstract:

CIGS and CdTe based commercial thin-ﬁlm solar cells (TFSCs) require an absorber thickness greater than 2 µm and 4 µm, respectively, to adequately absorb the solar spectrum. To efficiently extract photoexcited electrons, these TFSCs require relatively defect-free absorbers with high-minority carrier mobility (> 100 cm2V−1s−1) and long lifetime (> 10...

Resource Type:

Dissertation
Effective Bonding Parameters for Hybrid Cross-Laminated Timber (CLT)

Creator:

Larkin, Blake

Abstract:

Cross-laminated timber (CLT) is a massive engineered wood product made of orthogonally bonded layers of solid-sawn lumber, and is intended for roof, floor, or wall applications. Although it was developed in Europe in the early 90s, CLT is relatively new to North America. CLT products must be certified for structural...

Resource Type:

Masters Thesis
Heat transport at interface in the metal-organic-frameworks MOF-5

Creator:

Huang, Wenxi

Abstract:

The metal-organic–framework MOF-5 is used as an adsorbent in advanced systems for vehicular hydrogen storage that are currently under development. Presently, these systems are limited by poor thermal conductivity of the adsorption bed, and thus our research addresses how the interfaces between grains of MOF-5 can be engineered to improve...

Resource Type:

Masters Thesis

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Academic Affiliation

Mechanical, Industrial, and Manufacturing Engineering[remove]23
Wood Science and Engineering2
Chemistry1

Advisor

Gibbons, Brady J.3
Tucker, Julie3
Santala, Melissa K.2
Simonsen, John2
Tucker, Julie D.2
more Advisors »

Commencement Year

Commencement Year range begin – Commencement Year range end

Current results range from 2013 to 2019

View distribution

Committee Member

Cann, David4
Cann, David P.3
Santala, Melissa3
Xu, Donghua3
Bay, Brian K.2
more Committee Members »

Creator

Adam, Benjamin M.1
Addison, Dylan, A.1
Angelos, Gregory S.1
Bansal, Shalu1
Bird, Victoriea L.1
more Creators »

Contributor

Branyan, Callie1
Daalkhaijav, Uranbileg1
Ecker, Lynne1
Firouzeh, Amir1
Grimm, Cindy1
more Contributors »

Date

Date range begin – Date range end

Current results range from 2012 to 2019

View distribution

Decade

2010-2019[remove]23

Degree Field

Materials Science[remove]23
Wood Science2
Chemistry1
Robotics1

Degree Level

Master's14
Doctoral9

Degree Name

Master of Science (M.S.)14
Doctor of Philosophy (Ph.D.)9

Language

English [eng]23

License

All rights reserved22
Attribution 4.0 (CC BY 4.0)1

Non-Academic Affiliation

Oregon State University. Graduate School11
Linus Pauling Institute1

Peer Reviewed

No23

Resource Type

Masters Thesis14
Dissertation9

Rights Statement

In Copyright23

Subject

Adhesives3
Adhesion1
Cellulose nanocrystals1
Composite materials -- Bonding1
Crystallization1
more Subjects »

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