Research Training Pathway for Underrepresented Minority Students in Advancing Materials and Manufacturing for Fusion Power (open access)

Research Training Pathway for Underrepresented Minority Students in Advancing Materials and Manufacturing for Fusion Power

Data management plan for the grant, "Research Training Pathway for Underrepresented Minority Students in Advancing Materials and Manufacturing for Fusion Power."
Date: 2023-09-01/2026-08-31
Creator: Vasudevan, Vijay K.
Object Type: Text
System: The UNT Digital Library
CAN23-161, Hierarchically structured ISRU derived composites (open access)

CAN23-161, Hierarchically structured ISRU derived composites

Data management plan for the grant, "CAN23-161, Hierarchically structured ISRU derived composites."
Date: 2023-09-01/2024-08-31
Creator: Mishra, Rajiv
Object Type: Text
System: The UNT Digital Library
Stability and degradation in triple cation and methyl ammonium lead iodide perovskite solar cells mediated viaAu andAg electrodes (open access)

Stability and degradation in triple cation and methyl ammonium lead iodide perovskite solar cells mediated viaAu andAg electrodes

Article states that perovskite solar cells (PSCs), particularly based on the methyl ammonium lead iodide (MAPbI3) formulation, have been of intense interest for the past decade within the photovoltaics (PV) community, but their long-term stability under operational conditions and environmental storage are still prime challenges to be overcome towards their commercialization. The authors have conducted a comprehensive analysis on the impact of the electrode collector layer, specifically Ag and Au, on the degradation mechanism associated with the MAPbI3 and a triple cation absorber. The authors hypothesize the mechanism of degradation, arising from the Ag interaction with the absorber through 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: September 3, 2022
Creator: Kakaraparthi, Kranthiraja; Parashar, Mritunjaya; Mehta, Ravindra K.; Aryal, Sujan; Temsal, Mahdi & 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
Ex situ and in situ Investigation of the Thermomechanical Behavior of Shape Morphing Materials from Room Temperature to Ultra-High Temperatures (open access)

Ex situ and in situ Investigation of the Thermomechanical Behavior of Shape Morphing Materials from Room Temperature to Ultra-High Temperatures

Data management plan for the grant, "Ex situ and in situ Investigation of the Thermomechanical Behavior of Shape Morphing Materials from Room Temperature to Ultra-High Temperatures."
Date: 2023-09-15/2024-09-14
Creator: Young, Marcus L.
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." The principal near-term objective of the PI is to use in-situ monitoring to define the processing rules that determine the microstructure, macrostructure, and high-frequency dielectric response of electronic ceramic materials for advanced RF “grown” by laser-assisted direct-write AM. In-situ measurements will be correlated and validated with ex-situ characterization, and these data will iteratively guide synthesis and processing optimization. In parallel, the experimental measurements will be used as inputs for the physics-based process modeling. Predictions from the experimentally validated models will in turn: 1) guide synthesis and processing optimization and, 2) train and constrain ML. Thus, quality assurance is achieved.
Date: 2022-09-01/2025-06-30
Creator: Shepherd, Nigel D.
Object Type: Text
System: The UNT Digital Library
On the evolving nature of c/a ratio in a hexagonal close-packed epsilon martensite phase in transformative high entropy alloys (open access)

On the evolving nature of c/a ratio in a hexagonal close-packed epsilon martensite phase in transformative high entropy alloys

Article studying c/a ratio and transformation volume change of h.c.p. (hexagonal close packed) epsilon martensite phase in transformative high entropy alloys (HEAs) quantified as functions of alloy chemistry, friction stir processing and tensile deformation. The study reveals that while intrinsic c/a is dependent on alloying elements, c/a of epsilon in transformative HEAs changes with processing and deformation.
Date: June 18, 2019
Creator: Sinha, Subhasis; Nene, Saurabh S.; Frank, Michael; Liu, Kaimiao; Agrawal, Priyanka & Mishra, Rajiv
Object Type: Article
System: The UNT Digital Library
Fundamentals of three-dimensional Yb-fiber Nd:YAG laser machining of structural bone (open access)

Fundamentals of three-dimensional Yb-fiber Nd:YAG laser machining of structural bone

This article presents a study that aims to understand the fundamental aspects of the laser-bone interaction in three-dimensional laser machining of the bone through an integrated experimental-computational approach.
Date: June 28, 2019
Creator: Dahotre, Narendra B.; Pantawane, Mangesh V.; Robertson, William B.; Khan, Riaz J. K. & Fick, Daniel P.
Object Type: Article
System: The UNT Digital Library
Graphene-covered transition metal halide molecules as efficient and durable electrocatalysts for oxygen reduction and evolution reactions (open access)

Graphene-covered transition metal halide molecules as efficient and durable electrocatalysts for oxygen reduction and evolution reactions

Author Manuscript version of an article designing a new type of electrocatalysts consisting of transition metal halide molecules covered by graphene sheets. This work provides a theoretical base for rationally designing durable electrocatalysts with excellent catalytic activities.
Date: September 26, 2019
Creator: Xia, Zhenhai; Zhang, Detao; Zhang, Jing; Gong, Lele; Zhu, Yonghao & Zhang, Lipeng
Object Type: Article
System: The UNT Digital Library
Complex Concentrated Alloys (CCAs)—Current Understanding and Future Opportunities (open access)

Complex Concentrated Alloys (CCAs)—Current Understanding and Future Opportunities

Article providing an overview of the special issue titled Complex Concentrated Alloys (CCAs) - Current Understanding and Future Opportunities. The published papers in this special issue aim to report on the current state of research in complex concentrated alloys (CCAs) as well as compelling future opportunities in wide ranging applications.
Date: September 11, 2020
Creator: Mukherjee, Sundeep
Object Type: Article
System: The UNT Digital Library
Preparation of Surface-Modified Nanocellulose from Sugarcane Bagasse by Concurrent Oxalic Acid-Catalyzed Reactions (open access)

Preparation of Surface-Modified Nanocellulose from Sugarcane Bagasse by Concurrent Oxalic Acid-Catalyzed Reactions

Article presenting research where concurrent oxalic acid-catalyzed reactions, including cellulose hydrolysis and esterification of the hydrolyzed cellulose, were performed to prepare the nanocellulose from sugarcane bagasse.
Date: September 1, 2020
Creator: Brostow, Witold, 1934-; Sriruangrungkamol, Arisara; Wongjaiyen, Thipsirin & Chonkaew, Wunpen
Object Type: Article
System: The UNT Digital Library
Multi-body interactions and carrier dynamics in WSe2 for high-performance quantum-enabled devices (open access)

Multi-body interactions and carrier dynamics in WSe2 for high-performance quantum-enabled devices

Data management plan for the grant "Multi-body interactions and carrier dynamics in WSe2 for high-performance quantum-enabled devices."
Date: 2021-09-15/2024-09-14
Creator: Kaul, Anupama
Object Type: Text
System: The UNT Digital Library
Influence of high heating rates on evolution of oxides on directed laser energy additively fabricated IN718 (open access)

Influence of high heating rates on evolution of oxides on directed laser energy additively fabricated IN718

Article studying material response under dynamic short duration-high temperature oxidation.
Date: September 1, 2021
Creator: Mazumder, Sangram
Object Type: Article
System: The UNT Digital Library
Enabling Multi-scale Modeling by Deciphering Fundamental Mechanisms Underlying Phase Stability, Deformation and Oxidation in Refractory Complex Concentrated Alloys (RCCAs) and Intermetallics (open access)

Enabling Multi-scale Modeling by Deciphering Fundamental Mechanisms Underlying Phase Stability, Deformation and Oxidation in Refractory Complex Concentrated Alloys (RCCAs) and Intermetallics

Data management plan for the research project "Enabling Multi-scale Modeling by Deciphering Fundamental Mechanisms Underlying Phase Stability, Deformation and Oxidation in Refractory Complex Concentrated Alloys (RCCAs) and Intermetallics."
Date: 2021-09-15/2025-09-25
Creator: Banerjee, Rajarshi
Object Type: Text
System: The UNT Digital Library
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
Probing Noise in Flux Qubits via Macroscopic Resonant Tunneling (open access)

Probing Noise in Flux Qubits via Macroscopic Resonant Tunneling

Article on the characterization of noise in a flux qubit using macroscopic resonant tunneling between the two lowest lying states of a bistable rf SQUID. Analysis of these results indicates that the dominant source of low energy flux noise in this device is a quantum mechanical environment in thermal equilibrium.
Date: September 10, 2008
Creator: Harris, R.; Johnson, M. W.; Han, S.; Berkley, A. J.; Johansson, J.; Bunyk, P. et al.
Object Type: Article
System: The UNT Digital Library
Biocompatible, large-format, inkjet printed heterostructure molybdenum disulfide-graphene photodetectors on conformable substrates (open access)

Biocompatible, large-format, inkjet printed heterostructure molybdenum disulfide-graphene photodetectors on conformable substrates

This article describes an inkjet printed, biocompatible, heterostructure photodetector that was constructed using inks of photo-active molybdenum disulfide (MoS2) and electrically conducting graphene which facilitated charge collection of the photocarriers. The importance of such devices stems from their potential utility in age-related-macular degeneration, which is a condition where the photosensitive retinal tissue degrades with aging, eventually compromising vision. The absence of effective therapeutic remedies for patients with this disorder has motivated the development of such devices to restore some degree of visual function.
Date: September 7, 2017
Creator: Hossain, Ridwan F.; Deaguero, Isaac G.; Boland, Thomas & Kaul, Anupama
Object Type: Article
System: The UNT Digital Library
On the evolving nature of c/a ratio in a hexagonal close-packed epsilon martensite phase in transformative high entropy alloys (open access)

On the evolving nature of c/a ratio in a hexagonal close-packed epsilon martensite phase in transformative high entropy alloys

Article describes a study in which c/a ratio and transformation volume change of h.c.p. epsilon martensite phase in transformative high entropy alloys (HEAs) were quantified as functions of alloy chemistry, friction stir processing and tensile deformation.
Date: September 12, 2019
Creator: Sinha, Subhasis; Nene, Saurabh S.; Frank, Michael; Liu, Kaimiao; Agrawal, Priyanka & Mishra, Rajiv
Object Type: Article
System: The UNT Digital Library
Corrosion Behavior of Selectively Laser Melted CoCrFeMnNi High Entropy Alloy (open access)

Corrosion Behavior of Selectively Laser Melted CoCrFeMnNi High Entropy Alloy

The article focuses on a study that widens the toolbox to manufacture HEAs with exceptional corrosion resistance by additive manufacturing. CoCrFeMnNi high entropy alloys (HEAs) were additively manufactured (AM) by laser powder bed fusion and their corrosion resistance in 3.5 wt% NaCl solution was studied by potentiodynamic polarization and electrochemical impedance spectroscopy tests. A systematic study of AM CoCrFeMnNi HEAs’ porosity under a wide range of laser processing parameters was conducted and a processing map was constructed to identify the optimal laser processing window for CoCrFeMnNi HEAs.
Date: September 23, 2019
Creator: Ren, Jie; Mahajan, Chaitanya; Liu, Liang; Follette, David; Chen, Wen & Mukherjee, Sundeep
Object Type: Article
System: The UNT Digital Library
High-entropy alloy strengthened by in situ formation of entropy-stabilized nano-dispersoids (open access)

High-entropy alloy strengthened by in situ formation of entropy-stabilized nano-dispersoids

This article focuses on the effect of introducing Y₂O₃ in the Al₀.₃CoCrFeMnNi high-entropy alloys, fabricated using mechanical alloying and spark plasma sintering.
Date: September 20, 2018
Creator: Gwalani, B.; Pohan, Rizaldy M.; Lee, Junho; Lee, Bin; Banerjee, Rajarshi; Ryu, Ho Jin et al.
Object Type: Article
System: The UNT Digital Library
Effect of Microstructure on the Deformation Mechanism of Friction Stir-Processed A₁₀.₁CoCrFeNi High Entropy Alloy (open access)

Effect of Microstructure on the Deformation Mechanism of Friction Stir-Processed A₁₀.₁CoCrFeNi High Entropy Alloy

This article reports grain refinement using friction stir processing and a detailed study on the microstructural evolution at various locations in the processed region using scanning electron microscopy, in addition to the effect of grain refinement on the tensile properties and the underlying deformation mechanisms in both coarse-grained and fine-grained materials.
Date: August 7, 2014
Creator: Komarasamy, Mageshwari; Kumar, N.; Tang, Z.; Mishra, Rajiv & Liaw, P.K.
Object Type: Article
System: The UNT Digital Library
Enhancing elevated temperature strength of copper containing aluminum alloys by forming L1₂ Al₃Zr precipitates and nucleating θ" precipitates on them (open access)

Enhancing elevated temperature strength of copper containing aluminum alloys by forming L1₂ Al₃Zr precipitates and nucleating θ" precipitates on them

This article presents a new approach in designing an Al-based alloy through solid state precipitation route.
Date: March 16, 2017
Creator: Makineni, S. K.; Sugathan, Sandeep; Meher, Subhashish; Kumar, Subodh & Chattopadhyay, K.
Object Type: Article
System: The UNT Digital Library
Waste Materials from Tetra Pak Packages as Reinforcement of Polymer Concrete (open access)

Waste Materials from Tetra Pak Packages as Reinforcement of Polymer Concrete

This article discusses how compressive and flexural strength and modulus of elasticity decrease gradually, when either Tetra Pak particle concentration or particle size is increased.
Date: September 28, 2015
Creator: Martínez-López, Miguel; Martínez-Barrera, Gonzalo; Barrera-Díaz, Carlos; Ureña-Núñez, Fernando & Brostow, Witold, 1934-
Object Type: Article
System: The UNT Digital Library
Uv-Induced Modification of Fused Silica: Insights From ReaxFF-Based Molecular Dynamics Simulations (open access)

Uv-Induced Modification of Fused Silica: Insights From ReaxFF-Based Molecular Dynamics Simulations

This article discusses molecular dynamics simulations performed to present evidence that silica structure in both short and medium ranges is directly modified by UV-induced defects.
Date: September 16, 2016
Creator: Tian, Ye; Du, Jincheng; Zu, Xiaotao; Han, Wei; Yuan, Xiaodong & Zheng, Wanguo
Object Type: Article
System: The UNT Digital Library