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Full-Text Articles in Materials Science and Engineering

Reducing Switching Noise And Losses In Two-Stage Electric Power Converters, Abhijeet Prem May 2024

Reducing Switching Noise And Losses In Two-Stage Electric Power Converters, Abhijeet Prem

Student Research Symposium

Advancements in semiconductor devices are enabling the design of better electrical power converter systems. Wide Bandgap (WBG) switching devices from Silicon Carbide and Gallium Nitride can operate at high temperatures, voltages, and frequencies with faster turn-on/off periods, improving converter performance over silicon devices. However, WBG technology is still new, and the rapid switching transitions of these devices lead to issues such as voltage overshoots, ringing, and electromagnetic interference, which need to be addressed for widespread adoption. This work introduces a new control method for reshaping the switching voltages, which overcomes the disadvantages of fast transition time without increasing the system's …


Characterization Of Chopped Carbon Fiber Reinforced Composites Produced Using Fused Deposition Modeling, Jonathon Tran, Rachel Shubella May 2024

Characterization Of Chopped Carbon Fiber Reinforced Composites Produced Using Fused Deposition Modeling, Jonathon Tran, Rachel Shubella

Student Research Symposium

Fused deposition modeling (FDM) is an additive manufacturing (AM) process which can create parts with complex geometries in their final shape without need for additional specialized tools or devices. The FDM process builds parts by adding material layer by layer only where it is needed, saving energy, costs, production time for complex parts, and minimizing waste. Fiber reinforcement can significantly enhance the mechanical properties of a polymer material and depends significantly on the fiber length distribution and fiber orientation distribution of the final part. In this research, we investigated the various infill patterns of FDM printed Markforged onyx which is …


Processing And Testing Commodity And Engineering Cfrtp Composites, Delia M. Derner, Kristine Osorio Apr 2024

Processing And Testing Commodity And Engineering Cfrtp Composites, Delia M. Derner, Kristine Osorio

Research & Creative Achievement Day

Commodity thermoplastic polymers provide good load transfer to and protection of the reinforcing fibers.  However, their mechanical properties are inferior to high-performance thermoplastic polymer composites.  Findings of preliminary research conducted at WSU showed that continuous fiber reinforced (CFR) commodity polymers such as PETG and PP have better Izod impact resistance than their high-performance CFR counterparts.  Further investigation of these findings is conducted in this research project.  Quasi-isotropic laminates of GF/PETG and GF/PET-am are fabricated and tested in drop weight impact.  The results will be compared with previously determined results of high-performance CF/PPS, CF/PA12 and GF/PPS.  The samples are fabricated using …


Low-Velocity Drop Weight Impact And Compression After Impact Properties Of Symmetric Quasi-Isotropic Cfrtp Composites, Youyi Zhou, Kyungbin Min Apr 2024

Low-Velocity Drop Weight Impact And Compression After Impact Properties Of Symmetric Quasi-Isotropic Cfrtp Composites, Youyi Zhou, Kyungbin Min

Research & Creative Achievement Day

Low-velocity impact properties and residual compression strength after impact performance are used to evaluate composite materials for many applications. In this research, low-velocity drop-weight impact and compression after impact performance of four continuous fiber reinforcement thermoplastic (CFRTP) composites are investigated. Quasi-isotropic samples of GF/PP, CF-PA12, CF-PA6, GF-PA6 were fabricated and tested according to ASTM standards. Three energy levels of 10, 15, and 20 J/mm, were employed in this research. Results indicate that GF/PP exhibits the highest damage resistance and rebound-ability, evidenced by its minimal indentation and damage area, the highest significant damage threshold force, and the highest ratio of impact …


Ergo Carbon Workspace, Ethan C. Atkinson, Joshua N. Hanner, Rachel A. Henderson, Anders Nielsen, Mohamed A. Salat Apr 2024

Ergo Carbon Workspace, Ethan C. Atkinson, Joshua N. Hanner, Rachel A. Henderson, Anders Nielsen, Mohamed A. Salat

Research & Creative Achievement Day

The goal of the Ergo Carbon Workspace is to create a monitor stand that is both lightweight and easily transportable, catering to the needs of modern workspaces. Constructed from carbon fiber, epoxy resin, and a honeycomb core, this design emphasizes portability without sacrificing durability. Incorporating aerospace-grade honeycomb core as well as braided carbon fiber epoxy struts bolsters structural integrity while maintaining a lightweight part. The Ergo Carbon Workspace design facilitates effortless assembly and disassembly, simplifying transportation and packaging. Through the utilization of composite materials, the stand achieves an optimal balance of strength and portability. Ergo Carbon Workspace will also incorporate …


Machine Learning Prediction Of Photoluminescence In Mos2: Challenges In Data Acquisition And A Solution Via Improved Crystal Synthesis, Ethan Swonger, John Mann, Jared Horstmann, Daniel Yang Mar 2024

Machine Learning Prediction Of Photoluminescence In Mos2: Challenges In Data Acquisition And A Solution Via Improved Crystal Synthesis, Ethan Swonger, John Mann, Jared Horstmann, Daniel Yang

Seaver College Research And Scholarly Achievement Symposium

Transition metal dichalcogenides (TMDCs) like molybdenum disulfide (MoS2) possess unique electronic and optical properties, making them promising materials for nanotechnology. Photoluminescence (PL) is a key indicator of MoS2 crystal quality. This study aimed to develop a machine-learning model capable of predicting the peak PL wavelength of single MoS2 crystals based on micrograph analysis. Our limited ability to consistently synthesize high-quality MoS2 crystals hampered our ability to create a large set of training data. The project focus shifted towards improving MoS2 crystal synthesis to generate improved training data. We implemented a novel approach utilizing low-pressure chemical vapor deposition (LPCVD) combined with …


La1-Xsrxcoo3 Perovskite Nanomaterial: Synthesis, Characterization, And Its Biomedical Application, Adhira Tippur, Anyet Shohag, Luke Franco, Ahmed Touhami, Swati Mohan, Mohammed Uddin Mar 2024

La1-Xsrxcoo3 Perovskite Nanomaterial: Synthesis, Characterization, And Its Biomedical Application, Adhira Tippur, Anyet Shohag, Luke Franco, Ahmed Touhami, Swati Mohan, Mohammed Uddin

Research Symposium

Early cancer detection is paramount for effective treatment and potential cures. This research explores the application of perovskite materials, specifically Sr2+-doped Lanthanum Cobaltite (La1-xSrxCoO3) nanomaterials, in cancer detection, with a focus on rats as an experimental model. The ferroelectric nature of these materials, synthesized through a combination of sol-gel and molten-salt processes, was examined at varying Sr2+ doping levels (1-20 wt%). Rigorous characterization, employing X-ray diffraction and scanning electron microscopy, confirmed the uniform morphology of nano cubes, laying the foundation for subsequent investigations. The magnetic properties of the perovskite nanoparticles were probed, suggesting their potential as a diagnostic tool for …


Raman Spectroscopy Of Gan On Si With Varied Thin Film Thickness For High-Temperature Semiconductor Devices, Manika Tun Nafisa Mar 2024

Raman Spectroscopy Of Gan On Si With Varied Thin Film Thickness For High-Temperature Semiconductor Devices, Manika Tun Nafisa

Symposium of Student Scholars

This study explores the potential of GaN on Si thin films as a promising material for high-temperature semiconductor devices, owing to its impressive thermal properties and performance characteristics. Two GaN on Si samples were grown using Metal Organic Chemical Vapor Deposition (MOCVD), with different film thicknesses, and their potential for high-temperature applications was comprehensively assessed by performing Raman spectroscopy at various temperature levels. The experimental results provided valuable insights into the material's behavior at elevated temperatures. At 300°C, the GaN E2 (High) peak showed a Raman shift at 562.38 cm⁻¹ for high-thickness samples and 561.49 cm⁻¹ for low-thickness samples. …


L(D)-Tyrosine-Mediated One-Step Chiral Graphene Production For Chirality-Dependent Sensing, Fnu Pranav, Ali Ashraf, Meena Jaggi, Subhash C. Chauhan, Murali M. Yallapu Sep 2023

L(D)-Tyrosine-Mediated One-Step Chiral Graphene Production For Chirality-Dependent Sensing, Fnu Pranav, Ali Ashraf, Meena Jaggi, Subhash C. Chauhan, Murali M. Yallapu

Research Symposium

Background: Chirality has been the most iconic phenomenon that occurred in nature. The idea of mirror-image asymmetry associated with the biological entity is still unsolved The emergence of 2D layered nanomaterials which have already shown amazing properties and a wide range of applications, especially in the areas of sensing.Amino acids enantiomers have similar physical and chemical properties however their physiological responses get changed based on the enantiomers. For example, L from amino acids helps body in protein formation, and generation of biological signals etc. whereas the D-form may cause toxic effects. We have developed a novel and facile synthesis method …


Waste-To-Watts: An Energy Analysis Of Municipal Solid Waste As Fuel, Marianna Fischer, Brandon Lewis, Avary Zachary Jun 2023

Waste-To-Watts: An Energy Analysis Of Municipal Solid Waste As Fuel, Marianna Fischer, Brandon Lewis, Avary Zachary

2023 Symposium

Across the United States, there are two pressing problems: garbage disposal and electricity generation. Firstly, the infrastructure in place doesn’t properly dispose of or reuse municipal solid waste. In addition, power insecurity is becoming more prominent as power grids are becoming outdated. This project aims to provide an alternative solution for both issues by using a Brayton cycle based waste-to-energy incinerator. The overall system efficiency relies heavily on the feedstock used for incineration. One way efficiency can be increased is through pelletizing trash, ensuring an even burn profile, providing the correct amount of feedstock, and ensuring adequate energy production. However, …


Transportation Service Provider Collaboration: Benefits And Insights, Steven Roesch, Kimberly Ellis Jun 2023

Transportation Service Provider Collaboration: Benefits And Insights, Steven Roesch, Kimberly Ellis

International Material Handling Research Colloquium

No abstract provided.


Optimization Of Cargo Handling Equipment At The Airport, David Šourek Jun 2023

Optimization Of Cargo Handling Equipment At The Airport, David Šourek

International Material Handling Research Colloquium

No abstract provided.


Toward Architecture For Discrete Event Logistics Systems Design, Leon Mcginnis Jun 2023

Toward Architecture For Discrete Event Logistics Systems Design, Leon Mcginnis

International Material Handling Research Colloquium

No abstract provided.


On Logistics And Motion Planning – An Informal Axiomatic Approach, Moritz Roidl Jun 2023

On Logistics And Motion Planning – An Informal Axiomatic Approach, Moritz Roidl

International Material Handling Research Colloquium

No abstract provided.


Handling Disruptions In A Network With Cross-Docking, Vishal Badyal, Fahim Ahmed, Nikhil Aditya Eti, Nathan Huynh, William Ferrell Jun 2023

Handling Disruptions In A Network With Cross-Docking, Vishal Badyal, Fahim Ahmed, Nikhil Aditya Eti, Nathan Huynh, William Ferrell

International Material Handling Research Colloquium

No abstract provided.


Supply Chain Disruptors And Their Impact On The Future Of Manufacturing, Logistics, And Distribution, Henk M. Zijm, Sunderesh S. Heragu Jun 2023

Supply Chain Disruptors And Their Impact On The Future Of Manufacturing, Logistics, And Distribution, Henk M. Zijm, Sunderesh S. Heragu

International Material Handling Research Colloquium

No abstract provided.


Breakout Session E-1: "Resilience", Fabio Sgarbossa, William Ferrell Jun 2023

Breakout Session E-1: "Resilience", Fabio Sgarbossa, William Ferrell

International Material Handling Research Colloquium

No abstract provided.


Breakout Session E-2: "Information", Jelmer Pier Van Der Gaast, Moritz Roidl Jun 2023

Breakout Session E-2: "Information", Jelmer Pier Van Der Gaast, Moritz Roidl

International Material Handling Research Colloquium

No abstract provided.


Breakout Session E-3: "The Ideal Gtp Characteristics", Russell D. Meller, Uday Venkatadri Jun 2023

Breakout Session E-3: "The Ideal Gtp Characteristics", Russell D. Meller, Uday Venkatadri

International Material Handling Research Colloquium

No abstract provided.


Breakout Session D-1: "Sustainability", Uday Venkatadri, Kimberly Ellis Jun 2023

Breakout Session D-1: "Sustainability", Uday Venkatadri, Kimberly Ellis

International Material Handling Research Colloquium

No abstract provided.


Breakout Session D-2: "Artificial Intelligence", Sunderesh S. Heragu, Hector J. Carlo Jun 2023

Breakout Session D-2: "Artificial Intelligence", Sunderesh S. Heragu, Hector J. Carlo

International Material Handling Research Colloquium

No abstract provided.


Breakout Session D-3: "Robotics", Jennifer Pazour, Moritz Roidl Jun 2023

Breakout Session D-3: "Robotics", Jennifer Pazour, Moritz Roidl

International Material Handling Research Colloquium

No abstract provided.


Working Together — Scheduling Operations In Assisted Order Picking, Jelmer Pier Van Der Gaast Jun 2023

Working Together — Scheduling Operations In Assisted Order Picking, Jelmer Pier Van Der Gaast

International Material Handling Research Colloquium

No abstract provided.


Requirements For Generating Learning Environments For Autonomous Systems Behavior In A Digital Continuum, Anike Murrenhoff Jun 2023

Requirements For Generating Learning Environments For Autonomous Systems Behavior In A Digital Continuum, Anike Murrenhoff

International Material Handling Research Colloquium

No abstract provided.


Forklift Operator Safety & Productivity: A Review Of Current Research And Future Directions, Jesus A. Jimenez, Abhimanyu Sharotry, Francis A. Méndez Mediavilla Jun 2023

Forklift Operator Safety & Productivity: A Review Of Current Research And Future Directions, Jesus A. Jimenez, Abhimanyu Sharotry, Francis A. Méndez Mediavilla

International Material Handling Research Colloquium

No abstract provided.


Decision Rules For The Robotic Mobile Fulfillment System Of A Pcb Assembly Factory Warehouse, Ching-Jung Ting, Hendra Permana, Hsien-Mi Meng Jun 2023

Decision Rules For The Robotic Mobile Fulfillment System Of A Pcb Assembly Factory Warehouse, Ching-Jung Ting, Hendra Permana, Hsien-Mi Meng

International Material Handling Research Colloquium

No abstract provided.


Let Shoppers Shop: Why Click And Collect Is Not The Solution, Jennifer Pazour, Kai Furmans Jun 2023

Let Shoppers Shop: Why Click And Collect Is Not The Solution, Jennifer Pazour, Kai Furmans

International Material Handling Research Colloquium

No abstract provided.


Evaluating Business Service Models For On-Demand Warehousing: A Double Perspective On Suppliers And Customers, Maria Grazia Gnoni, Fabiana Tornese Jun 2023

Evaluating Business Service Models For On-Demand Warehousing: A Double Perspective On Suppliers And Customers, Maria Grazia Gnoni, Fabiana Tornese

International Material Handling Research Colloquium

No abstract provided.


A Fluid Flow Queuing Network Model For Performance Analysis Of Bulk Liquid Terminals, Debjit Roy, Werner Scheinhardt, Jan-Kees Van Ommeren Jun 2023

A Fluid Flow Queuing Network Model For Performance Analysis Of Bulk Liquid Terminals, Debjit Roy, Werner Scheinhardt, Jan-Kees Van Ommeren

International Material Handling Research Colloquium

No abstract provided.


Designing Facilities To Improve Flexibility: Zone-Based Dynamic Facility Layout With Embedded Input/Output Points, Sadan Kulturel-Konak, Abdullah Konak Jun 2023

Designing Facilities To Improve Flexibility: Zone-Based Dynamic Facility Layout With Embedded Input/Output Points, Sadan Kulturel-Konak, Abdullah Konak

International Material Handling Research Colloquium

No abstract provided.