Process and Materials Development for Additive Manufacturing (AM) of Tungsten-Based Alloys with Superior High Temperature Performance and Good Room Temperature Ductility (open access)

Process and Materials Development for Additive Manufacturing (AM) of Tungsten-Based Alloys with Superior High Temperature Performance and Good Room Temperature Ductility

Data management plan for the grant "Process and Materials Development for Additive Manufacturing (AM) of Tungsten-Based Alloys with Superior High Temperature Performance and Good Room Temperature Ductility." Research on CALPHAD simulations will be conducted to optimize the chemical composition of tungsten based alloys towards 3D printability while boosting mechanical performance through solid solution and dispersion strengthening. This will followed by powder prototyping to validate the simulation results experimentally and to finalize the chemical composition of interest. Process parameter optimization and post-process heat treatment design will help to achieve optimal low-to-high temperature mechanical properties. Mechanical testing and microstructural characterization will be performed to establish process-microstructure-property relationships.
Date: 2021-09-01/2022-08-31
Creator: Mishra, Rajiv & Imandoust, Aidin
Object Type: Text
System: The UNT Digital Library
Ion-exchange mechanisms and interfacial reaction kinetics during aqueous corrosion of sodium silicate glasses (open access)

Ion-exchange mechanisms and interfacial reaction kinetics during aqueous corrosion of sodium silicate glasses

Article on the ion-exchange and associated interfacial reaction mechanisms of silicate glasses. This work reports findings that shed light on the complex ion-exchange mechanisms during glass hydration and enables more detailed understanding of the corrosion and glass-water interactions of silicate glasses which has the potential to impact both science and technology.
Date: April 8, 2021
Creator: Deng, Lu; Miyatani, Katsuaki; Suehara, Michinori; Amma, Shin-ichi; Ono, Madoka; Urata, Shingo et al.
Object Type: Article
System: The UNT Digital Library
Hierarchical Eutectoid Nano-lamellar Decomposition in an Al0.3CoFeNi Complex Concentrated Alloy (open access)

Hierarchical Eutectoid Nano-lamellar Decomposition in an Al0.3CoFeNi Complex Concentrated Alloy

Article discusses a novel eutectoid nano-lamellar (FCC + L12)/(BCC + B2) microstructure that has been discovered in a relatively simple Al0.3CoFeNi high entropy alloy (HEA) or complex concentrated alloy (CCA).
Date: March 16, 2020
Creator: Dasari, Sriswaroop; Gwalani, Bharat; Jagetia, Abhinav; Soni, V.; Gorsse, Stéphane & Banerjee, Rajarshi
Object Type: Article
System: The UNT Digital Library
Charge Transport in Two-Dimensional Materials Based Integrated Flexible Energy System (open access)

Charge Transport in Two-Dimensional Materials Based Integrated Flexible Energy System

Data management plan for the grant "Charge Transport in Two-Dimensional Materials Based Integrated Flexible Energy System."
Date: 2021-04-15/2022-03-14
Creator: Choi, Wonbong
Object Type: Text
System: The UNT Digital Library
Self-powered Wireless Sensors and Interfaces for Unmanned Aerial Vehicles (open access)

Self-powered Wireless Sensors and Interfaces for Unmanned Aerial Vehicles

Data management plan for the grant, "Self-powered Wireless Sensors and Interfaces for UAVs." Self-powered wireless sensors acting as nanogenerators can not only harvest ambient environment energy during the flight but also are capable of wirelessly monitoring pressure, temperature and other parameters to make the UAV truly an intelligent transportation system (ITS). This proposal requests the acquisition of a Mask Aligner to pattern such self-powered sensors with nano-antenna structures for wireless communication. The addition of the proposed system will enable researchers to study novel 2D materials as self-powered sensors and actuators. The proposed infrastructure would allow the development of smart, autonomous mobility systems with breakthroughs in intelligent technologies, research and workforce preparation.
Date: 2021-05-05/2022-05-04
Creator: Choi, Wonbong
Object Type: Text
System: The UNT Digital Library
In-Situ Monitoring for Quality Assurance and Machine Learning in Direct-Write Additive Manufacturing of 5G RF Electronic Ceramics (open access)

In-Situ Monitoring for Quality Assurance and Machine Learning in Direct-Write Additive Manufacturing of 5G RF Electronic Ceramics

Data management plan for the grant, "In-Situ Monitoring for Quality Assurance and Machine Learning in Direct-Write Additive Manufacturing of 5G RF Electronic Ceramics."
Date: 2023-11-01/2026-10-31
Creator: Shepherd, Nigel D.
Object Type: Text
System: The UNT Digital Library
Effect of composition and thermal history on deformation behavior and cluster connections in model bulk metallic glasses (open access)

Effect of composition and thermal history on deformation behavior and cluster connections in model bulk metallic glasses

Article describes the compositional dependence and influence of relaxation state on the deformation behavior of a Pt–Pd-based bulk metallic glasses model system was investigated, where platinum is systematically replaced by topologically equivalent palladium atoms. Based on total scattering experiments with synchrotron X-ray radiation, a correlation between the increase in stiffer 3-atom cluster connections and reduction in strain-rate sensitivity, as a measure of ductility, with Pd content and thermal history is suggested.
Date: October 12, 2022
Creator: Neuber, Nico; Sadeghilaridjani, Maryam; Ghodki, Nandita; Gross, Oliver; Adam, Bastian; Ruschel, Lucas et al.
Object Type: Article
System: The UNT Digital Library
Design approaches for printability-performance synergy in Al alloys for laser-powder bed additive manufacturing (open access)

Design approaches for printability-performance synergy in Al alloys for laser-powder bed additive manufacturing

This article highlights that design of Al alloys for laser-powder bed fusion (L-PBF) can lead to fundamental change in the microstructure evolution, proposed alloy design strategies lead to synergy between and printability and performance, hierarchical and heterogeneous microstructures have potential to overcome the strength-ductility tradeoff, and alloy design incorporating the specific attributes of an AM technology is crucial to maximizing its potential.
Date: March 10, 2021
Creator: Mishra, Rajiv & Thapliyal, Saket
Object Type: Article
System: The UNT Digital Library
A pseudo thermo-mechanical model linking process parameters to microstructural evolution in multilayer additive friction stir deposition of magnesium alloy (open access)

A pseudo thermo-mechanical model linking process parameters to microstructural evolution in multilayer additive friction stir deposition of magnesium alloy

Article describes how additive friction stir deposition has been proposed as a disruptive manufacturing process; involving complex thermo-mechanical mechanisms during multilayer material deposition. The primary motivation for development of the model was to seek an understanding of thermo-mechanical mechanisms and their impact on microstructural evolution during additive friction stir deposition.
Date: November 24, 2022
Creator: Sharma, Shashank; Krishna, Mani K. V.; Radhakrishnan, M.; Pantawane, Mangesh V.; Patil, Shreyash M.; Joshi, Sameehan et al.
Object Type: Article
System: The UNT Digital Library
Thermo/hydration responsive shape memory polymers with enhanced hydrophilicity for biomedical applications (open access)

Thermo/hydration responsive shape memory polymers with enhanced hydrophilicity for biomedical applications

Article states that thiol-ene/acrylate shape memory polymers (SMPs) have sufficient stiffness for facile insertion and precision placement and soften after exposure to physiological conditions to reduce the mechanical mismatch with body tissue; as a result, they have demonstrated excellent potential as substrates for various flexible bioelectronic devices, such as cochlear implants, nerve cuffs, cortical probes, plexus blankets, and spinal cord stimulators. Here, the authors report a new strategy for designing SMPs with enhanced shape recovery properties and lower moduli than previously reported SMPs under physiological conditions without sacrificing stiffness at room temperature by introducing a hydrophilic monomer.
Date: December 5, 2022
Creator: Suzuki, Yuta; Hu, Qichan; Batchelor, Benjamin; Voit, Walter & Ecker, Melanie
Object Type: Article
System: The UNT Digital Library
Quantitative estimation of closed cell porosity in low density ceramic composites using X-ray microtomography (open access)

Quantitative estimation of closed cell porosity in low density ceramic composites using X-ray microtomography

Article asserts that x-ray Microtomography is a proven tool for phase fraction analysis of multi-phase systems, provided that each phase is adequately partitioned by some means of data processing. The authors present a novel, combined methodology for accurate porosity analysis—despite these shortcomings.
Date: January 4, 2023
Creator: Smith, J. D.; Garcia, C.; Rodriguez, J. & Scharf, T. W.
Object Type: Article
System: The UNT Digital Library
Predicting initial dissolution rates using structural featuresfrom molecular dynamics simulations (open access)

Predicting initial dissolution rates using structural featuresfrom molecular dynamics simulations

Article states that predicting the chemical durability of glass materials is important for various applications from daily life such as cell phone screens and kitchenware to advanced technologies such as nuclear waste disposal and biomedicine. In this work, we explored the prediction of the initial glass dissolution rates using structural features from molecular dynamics (MD) simulations for a series of glass compositions (total 28), including ZrO2- and V2O5-containing boroaluminosilicate, borosilicate, and aluminosilicate glasses.
Date: October 17, 2022
Creator: Lu, Xiaonan; Deng, Lu; Gin, Stéphane; Parruzot, Benjamin; Reiser, Joelle T.; Ryan, Joseph V. et al.
Object Type: Article
System: The UNT Digital Library
High-Throughput Investigation of Multiscale Deformation Mechanism in Additively Manufactured Ni Superalloy (open access)

High-Throughput Investigation of Multiscale Deformation Mechanism in Additively Manufactured Ni Superalloy

Article discusses how, in this paper, Inconel 718 (IN718) superalloy was processed by laser powder-bed fusion additive manufacturing (L-PBFAM), followed by heat treatment. Evidence of extensive deformation of twin networks and dislocation cells was revealed by transmission electron microscopy of the deformed region under the nanoindentation tip.
Date: February 17, 2023
Creator: Dhal, Abhijeet; Agrawal, Priyanka; Haridas, Ravi Sankar; Gaddam, Supreeth; Sharma, Aishani; Parganitha, Digvijay et al.
Object Type: Article
System: The UNT Digital Library
Inkjet-printed graphene’s electrical response to external gas flow for sensing applications (open access)

Inkjet-printed graphene’s electrical response to external gas flow for sensing applications

Article discusses how understanding gas flow behavior is crucial in the ability of materials to sense toxic gasses for environmental, industrial, safety, agriculture, and related applications. In their study, the authors measure the electrical transport characteristics of ink jet printed graphene to incoming gas flow, specifically to N2 and CO2. This work serves as a prototypical platform to study the device characteristics of solution processed graphene and other 2D materials for more exotic gases in the future for gas sensing applications.
Date: October 3, 2022
Creator: Mather, Thomas; Mehta, Ravindra K. & Kaul, Anupama
Object Type: Article
System: The UNT Digital Library
Optical Property and Stability Study of CH₃(CH₂)₃NH₃)₂(CH₃NH₃)₃Pb₄I₁₃ Ruddlesden Popper 2D Perovskites for Photoabsorbers and Solar Cells and Comparison with 3D MAPbI₃ (open access)

Optical Property and Stability Study of CH₃(CH₂)₃NH₃)₂(CH₃NH₃)₃Pb₄I₁₃ Ruddlesden Popper 2D Perovskites for Photoabsorbers and Solar Cells and Comparison with 3D MAPbI₃

Article discussing two-dimensional organic halide layered perovskites in the Ruddlesden Popper structure (CH3(CH2)3NH3)2(CH3NH3)n􀀀1PbnI3n+1) layered perovskites in the Ruddlesden Popper structure, represented as BA2MA3Pb4I13 for the n = 4 formulation, for both photoabsorbers in a two-terminal architecture and solar cells. A comparative study of the 3DP and 2DP film stability was also conducted.
Date: September 20, 2022
Creator: Kranthiraja, Kakarapathi; Aryal, Sujan; Temsal, Mahdi; Sharma, Mohin & Kaul, Anupama
Object Type: Article
System: The UNT Digital Library
Photoexcitation of C₆₀-WSe₂ hybrids for optical sensing (open access)

Photoexcitation of C₆₀-WSe₂ hybrids for optical sensing

Article discusses a study on synthesizing 0D-2D vdW heterostructure by spin coating C60 molecules on halide-assisted-low-pressure chemical-vapor-deposition (HA-LPCVD) produced monolayer WSe2 flakes. The study reveals that WSe2-C60 hybrid system is an appealing choice for next generation optical sensing devices.
Date: October 3, 2022
Creator: Jayanand, Kishan; Bastos, Silvino P. & Kaul, Anupama
Object Type: Article
System: The UNT Digital Library
Stability and degradation in triple cation and methyl ammonium lead iodide perovskite solar cells mediated via Au and Ag electrodes (open access)

Stability and degradation in triple cation and methyl ammonium lead iodide perovskite solar cells mediated via Au and Ag electrodes

Article focuses on the fact that there are no clear mechanisms for the interaction of electrode-induced absorber degradation pathways. Furthermore, the authors hypothesize that the formation of AgI in the PSCs, leads to corrosion of the perovskite absorber, as opposed to the benign AuI when Au electrodes are used in the solar cell stack.
Date: November 3, 2022
Creator: Kranthiraja, Kakaraparthi; Parashar, Mritunjaya; Mehta, Ravindra K.; Aryal, Sujan; Temsal, Mahdi & Kaul, Anupama
Object Type: Article
System: The UNT Digital Library
Light-matter Interactions in Transition Metal Dichalcogenides and Organohalide Perovskites for Photoabsorbers and Solar Cells (open access)

Light-matter Interactions in Transition Metal Dichalcogenides and Organohalide Perovskites for Photoabsorbers and Solar Cells

Article discusses findings on two distinct classes of van der Waals solids, that based on in-organic transition metal dichalcogenides and the other based on a hybrid mixed organic-inorganic composition of 2D perovskites, specifically organo-halides (CH3(CH2)3NH3)2(CH3NH3)n-1PbnI3n+1.
Date: October 3, 2022
Creator: Kaul, Anupama
Object Type: Article
System: The UNT Digital Library
Gas tungsten arc welding of as-cast AlCoCrFeNi2.1 eutectic high entropy alloy (open access)

Gas tungsten arc welding of as-cast AlCoCrFeNi2.1 eutectic high entropy alloy

Article states that the AlCoCrFeNi2.1 eutectic high entropy alloy is of great interest due to its unique mechanical properties combining both high strength and plasticity. This work establishes the potential for using arc-based welding for joining eutectic high entropy alloys.
Date: October 5, 2022
Creator: Shen, Jiajia; Agrawal, Priyanka; Rodrigues, Tiago A.; Lopes, J.G.; Schell, N.; Zeng, Zhi et al.
Object Type: Article
System: The UNT Digital Library
Microstructure evolution and mechanical properties in a gas tungsten arc welded Fe42Mn28Co10Cr15Si5 metastable high entropy alloy (open access)

Microstructure evolution and mechanical properties in a gas tungsten arc welded Fe42Mn28Co10Cr15Si5 metastable high entropy alloy

Article asserts that weldability studies on high entropy alloys are still relatively scarce, delaying the deployment of these materials into real-life applications, thus, there is an urgent need for in-depth studies of the weldability of these novel advanced engineering alloys. In the current work, an as-cast Fe42Mn28Co10Cr15Si5 metastable high entropy alloy was welded for the first time using gas tungsten arc welding.
Date: February 6, 2023
Creator: Shen, Jiajia; Agrawal, Priyanka; Rodrigues, Tiago A.; Lopes, J.G.; Schell, N.; He, Jinjing et al.
Object Type: Article
System: The UNT Digital Library
Lithium-CO2 batteries and beyond (open access)

Lithium-CO2 batteries and beyond

Article describes how Li-CO2 batteries with a theoretical energy density of 1,876 Wh kg−1 are attractive as a promising energy storage strategy and as an effective way to reduce greenhouse gas emissions by CO2 reduction and the formation of discharge product Li2CO3 and carbon. This article provides critical perspectives on the development of Li-CO2 batteries as well as a description of current issues and challenges associated with cathode catalysts, electrolyte, and anode for Li-CO2 batteries.
Date: March 3, 2023
Creator: Pathak, Anil; Adhikari, Pashupati R. & Choi, Wonbong
Object Type: Article
System: The UNT Digital Library
Highly complex magnetic behavior resulting from hierarchical phase separation in AlCo(Cr)FeNi high-entropy alloys (open access)

Highly complex magnetic behavior resulting from hierarchical phase separation in AlCo(Cr)FeNi high-entropy alloys

Article presents for the first time the influence of a hierarchically decomposed B2 + A2 structure in an AlCo0.5Cr0.5FeNi HEA on the formation of magnetic vortex states within individual A2 (disordered BCC) precipitates, which are distributed in an ordered B2 matrix that is weakly ferromagnetic.
Date: March 10, 2022
Creator: Lan, Qianqian; Kovács, András; Caron, Jan; Du, Hongchu; Song, Dongsheng; Dasari, Sriswaroop et al.
Object Type: Article
System: The UNT Digital Library
Friction stir-based additive manufacturing (open access)

Friction stir-based additive manufacturing

This article is a review of friction stir additive manufacturing (FSAM) and additive friction stir deposition (AFSD) and provides a systems approach framework and a conceptual process model to guide researchers.
Date: January 18, 2022
Creator: Mishra, Rajiv; Haridas, Ravi Sankar & Agrawal, Priyanshi
Object Type: Article
System: The UNT Digital Library
A Phosphonic Functionalized Biopolymer for the Sorption of Lanthanum (III) and Application in the Recovery of Rare Earth Elements (open access)

A Phosphonic Functionalized Biopolymer for the Sorption of Lanthanum (III) and Application in the Recovery of Rare Earth Elements

Authors of the article state that in the first step of their experiment, the sorption was investigated using La(III) ions before testing for the recovery of rare earth elements (REEs) from pretreated industrial acidic leachate. They infer that phosphonate groups participate in the sorption, and that the most effective sorption is at pH = 4.
Date: February 3, 2023
Creator: Hamza, Mohammed F.; Abdellah, Walid M.; Zaki, Doaa I.; Wei, Yuezhou; Althumayri, Khalid; Brostow, Witold, 1934- et al.
Object Type: Article
System: The UNT Digital Library