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Methylammonium Lead Tri-Iodide Perovskite Solar Cells with Varying Equimolar Concentrations of Perovskite Precursors (open access)

Methylammonium Lead Tri-Iodide Perovskite Solar Cells with Varying Equimolar Concentrations of Perovskite Precursors

Article conducting a systematic study to tune the equimolar precursor ratio of the organic halide (methylammonium iodide; MAI) and metal halide (lead iodide; PbI2) in a fixed solvent mixture of N,N-dimethylformamide (DMF):dimethylsulfoxide (DMSO).
Date: December 9, 2021
Creator: Parashar, Mritunjaya & Kaul, Anupama
Object Type: Article
System: The UNT Digital Library
The effect of laser shock peening with and without protective coating on intergranular corrosion of sensitized AA5083 (open access)

The effect of laser shock peening with and without protective coating on intergranular corrosion of sensitized AA5083

Article applies Laser Shock Peening with (LSP) and without protective coating (LPwC) to sensitized AA5083 followed by electrochemical analysis.
Date: November 1, 2021
Creator: Kaufman, Jan; Racek, Jan; Cieslar, Miroslav; Minárik, Peter; Steiner, Matthew A.; Mannava, Seetha R. et al.
Object Type: Article
System: The UNT Digital Library
Effect of Laser Shock Peening Parameters on Residual Stresses and Corrosion Fatigue of AA5083 (open access)

Effect of Laser Shock Peening Parameters on Residual Stresses and Corrosion Fatigue of AA5083

Article examining Aluminium alloy 5083 subjected to Laser Shock Peening both with (LSP) and without protective coating (LPwC) at multiple pulse densities. A second LPwC treatment was conducted fully submersed under water, in addition to the standard laminar water flow condition. Results show that compressive residual stresses were generated in all cases, although their character varied depending on the peening strategy and method of confinement.
Date: October 14, 2021
Creator: Kaufman, Jan; Špirit, Zbyněk; Vasudevan, Vijay K.; Steiner, Matthew Alan; Mannava, Seetha Ramaiah; Brajer, Jan et al.
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
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
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
A Review of Diagnostics Methodologies for Metal Additive Manufacturing Processes and Products (open access)

A Review of Diagnostics Methodologies for Metal Additive Manufacturing Processes and Products

This article is a review summarizing and discussing various ex-situ inspections and in-situ monitoring methods, including electron-based methods, thermal methods, acoustic methods, laser breakdown, and mechanical methods, for metal additive manufacturing.
Date: August 30, 2021
Creator: Yang, Teng; Mazumder, Sangram; Jin, Yuqi; Squires, Brian; Sofield, Matthew; Pantawane, Mangesh V. et al.
Object Type: Article
System: The UNT Digital Library
Carbon Capture Utilization for Biopolymer Foam Manufacture: Thermal, Mechanical and Acoustic Performance of PCL/PHBV CO2 Foams (open access)

Carbon Capture Utilization for Biopolymer Foam Manufacture: Thermal, Mechanical and Acoustic Performance of PCL/PHBV CO2 Foams

This article uses PCL to blend into PBHV. Both unfoamed and foamed blends are examined. The results provide a pathway to multifunctional performance in foams of high performance biopolymers such as PBHV through harnessing the CO₂ miscibility of PCL.
Date: July 31, 2021
Creator: Oluwabunmi, Kayode E.; Zhao, Weihuan & D'Souza, Nandika Anne, 1967-
Object Type: Article
System: The UNT Digital Library
Characterize traction–separation relation and interfacial imperfections by data-driven machine learning models (open access)

Characterize traction–separation relation and interfacial imperfections by data-driven machine learning models

This article combines machine learning (ML), finite element analysis (FEA), and empirical experiments to develop data-driven models that characterize interfacial mechanical properties precisely. It also provides a code package containing trained ML models, allowing other researchers to establish T–S relations for different material interfaces.
Date: July 12, 2021
Creator: Ferdousi, Sanjida; Chen, Qiyi; Soltani, Mehrzad; Zhu, Jiadeng; Cao, Pengfei; Choi, Wonbong et al.
Object Type: Article
System: The UNT Digital Library
Corrosion Fatigue Characteristics of 316L Stainless Steel Fabricated by Laser Powder Bed Fusion (open access)

Corrosion Fatigue Characteristics of 316L Stainless Steel Fabricated by Laser Powder Bed Fusion

This article studies the corrosion and corrosion fatigue characteristics of LPBF 316L stainless steels (SS) in 3.5 wt.% NaCl solution using an electrochemical method, high cycle fatigue, and fatigue crack propagation testing.
Date: June 29, 2021
Creator: Gnanasekaran, Balachander; Song, Jie; Vasudevan, Vijay K. & Fu, Yao
Object Type: Article
System: The UNT Digital Library
Tribo-corrosion response of additively manufactured high-entropy alloy (open access)

Tribo-corrosion response of additively manufactured high-entropy alloy

Article highlighting the potential of utilizing additive manufacturing of HEAs for use in extreme environments that require a combination of tribo-corrosion resistance, mechanical durability, extended service life, and net shaping with low dimensional tolerance.
Date: June 11, 2021
Creator: Shittu, Jibril; Sadeghilaridjani, Maryam; Pole, M.; Muskeri, Saideep; Ren, Jie; Liu, Yanfang et al.
Object Type: Article
System: The UNT Digital Library
First principles computation of composition dependent elastic constants of omega in titanium alloys: implications on mechanical behavior (open access)

First principles computation of composition dependent elastic constants of omega in titanium alloys: implications on mechanical behavior

Article on the poor mechanical properties of Ti alloys. The study shows that the elastic properties of the ω-phase can be systematically varied as a function of its composition to enhance both the ductility and strength of the Ti-alloy. Furthermore, that ω precipitates are not intrinsically embrittling and detrimental and that Ti-alloys can be created with both good ductility and strength by tailoring ω precipitates' composition instead of completely eliminating them.
Date: June 7, 2021
Creator: Salloom, Riyadh; Mantri, Srinivas Aditya; Banerjee, Rajarshi & Srinivasan, S. G.
Object Type: Article
System: The UNT Digital Library
Adaptation of Fluctuating Magnetoacoustic System to External Signals (open access)

Adaptation of Fluctuating Magnetoacoustic System to External Signals

Article studying the influence of microwave signals of different shapes on the magnetoacoustic wave system with a giant nonlinearity in canted antiferromagnet FeBO₃ at room temperature, which is close to its phase transition to the paramagnetic state. Results represent the first observation of the macroscopic quantum statistical phenomenon, Bose-Einstein condensation of magnetoacoustic wave quanta in a wave system with a high level of thermal fluctuations.
Date: June 2, 2021
Creator: Safonov, Vladimir L.; Bas, Derek A.; Berman, Diana; Rostovtsev, Yuri V.; Roberts, James A.; Mcconney, Michael E. et al.
Object Type: Article
System: The UNT Digital Library
Erratum to “From mechanics to thermodynamics: A relation between the brittleness and the thermal expansivity for polymers” (open access)

Erratum to “From mechanics to thermodynamics: A relation between the brittleness and the thermal expansivity for polymers”

Erratum to “From mechanics to thermodynamics: A relation between the brittleness and the thermal expansivity for polymers” that provides the Declaration of Interest statement that was missed to be included in the original publication.
Date: May 26, 2021
Creator: Brostow, Witold, 1934- & Osmanson, Allison T.
Object Type: Article
System: The UNT Digital Library
Black Phosphorus-Molybdenum Disulfide Hetero-Junctions Formed with Ink-Jet Printing for Potential Solar Cell Applications with Indium-Tin-Oxide (open access)

Black Phosphorus-Molybdenum Disulfide Hetero-Junctions Formed with Ink-Jet Printing for Potential Solar Cell Applications with Indium-Tin-Oxide

Article on the implementation of liquid exfoliation to inkjet-print two-dimensional (2D) black phosphorous (BP) and molybdenum disulfide (MoS₂) p–n heterojunctions on a standard indium tin oxide (ITO) glass substrate in a vertical architecture. The authors also compared the optical and electrical properties of the inkjet-printed BP layer with that of the MoS₂ and the electrical properties of the mechanically exfoliated MoS₂ with that of the inkjet-printed MoS₂.
Date: May 18, 2021
Creator: Mehta, Ravindra & Kaul, Anupama
Object Type: Article
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
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
Macroscale Superlubricity Accomplished by Sb2O3-MSH/C Under High Temperature (open access)

Macroscale Superlubricity Accomplished by Sb2O3-MSH/C Under High Temperature

Article reporting the high-temperature superlubricity phenomenon accomplished in coatings produced by burnishing powders of antimony trioxide (Sb₂O₃) and magnesium silicate hydroxide coated with carbon (MSH/C) onto the nickel superalloy substrate.
Date: April 15, 2021
Creator: Gao, Kai
Object Type: Article
System: The UNT Digital Library
Growth Mechanisms of Nano-to Micro-Sized Lead Sulfate Particles (open access)

Growth Mechanisms of Nano-to Micro-Sized Lead Sulfate Particles

This article aims to determine the nucleation and growth mechanisms of PbSO4 nanoparticles in various solutions to potentially reduce or control the buildup of PbSO4 on battery electrodes over time.
Date: April 14, 2021
Creator: Wall, Michael T.; Smith, Jesse D.; Carl, Matthew; Young, Marcus L.; Hesterberg, Travis & Ellis, Tim
Object Type: Article
System: The UNT Digital Library
Engineering the Uniform Lying Helical Structure in Chiral Nematic Liquid Crystals: From Morphology Transition to Dimension Control (open access)

Engineering the Uniform Lying Helical Structure in Chiral Nematic Liquid Crystals: From Morphology Transition to Dimension Control

This article varies the surface anchoring strength and achieves a uniform lying helical structure with long-range order as thermodynamically stable state without any external support in Chiral nematic liquid crystals (CLCs).
Date: April 12, 2021
Creator: Jia, Zhixuan; Pawale, Tejal; Guerrero-García, Guillermo I.; Hashemi, Sid; Martínez-González, José A. & Li, Xiao
Object Type: Article
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
Carrier photodynamics in 2D perovskites with solution-processed silver and graphene contacts for bendable optoelectronics (open access)

Carrier photodynamics in 2D perovskites with solution-processed silver and graphene contacts for bendable optoelectronics

Article reporting on the inkjet printed, direct contact study of solution-processed, 2D perovskite-based photodetectors (PDs) formed on flexible PI substrates. Silver (Ag) and graphene (Gr) inks have been engineered to serve as efficient electrical contacts for solution-processed two-dimensional (2D) organo-halide (CH3(CH2)3NH3)2(CH3NH3)n−1PbnI3n+1 (n = 4) layered perovskites, where all inkjet-printed heterostructure PDs were fabricated on polyimide (PI) substrates.
Date: March 25, 2021
Creator: Hossain, Ridwan F.; Min, Misook; Ma, Liang-Chieh; Sakri, Shambhavi R. & Kaul, Anupama
Object Type: Article
System: The UNT Digital Library
Bioresorbable stent to manage congenital heart defects in children (open access)

Bioresorbable stent to manage congenital heart defects in children

This article assembles large, pediatric-sized stents (Ø10 - Ø20 mm) from poly(L-lactide) fibers (DH-BDS) at two thicknesses, 250 µm and 300 µm. DH-BDS exhibiting hoop strength similar to metal stents and demonstrating minimal degradation and strength loss over the first year before completely disappearing within 3 to 4.5 years show promise as a pediatric interventional alternative to current strategies.
Date: March 19, 2021
Creator: Wright, Jamie; Nguyen, Annie; D'Souza, Nandika Anne, 1967-; Forbess, Joseph M.; Nugent, Alan; Reddy, Surenderanath R. Veeram et al.
Object Type: Article
System: The UNT Digital Library