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292 Matching Results
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Collaborative Research: Topological Defects and Dynamic Motion of Symmetry-breaking Tadpole Particles in Liquid Crystal Medium
Data management plan for the grant, "Collaborative Research: Topological Defects and Dynamic Motion of Symmetry-breaking Tadpole Particles in Liquid Crystal Medium."
Date:
2024-04-01/2027-03-31
Creator:
Li, Xiao
Object Type:
Text
System:
The UNT Digital Library
Understanding the Role of Residual Stress Gradients on Plastic Strain Recovery in Nanocrystalline Thin Films
Data management plan for the grant, "Understanding the Role of Residual Stress Gradients on Plastic Strain Recovery in Nanocrystalline Thin Films."
Date:
2023-10-01/2025-11-30
Creator:
Zheng, Yufeng
Object Type:
Text
System:
The UNT Digital Library
Ideal plasticity and shape memory of nanolamellar high-entropy alloys
Article describes how understanding the relationship among elemental compositions, nanolamellar microstructures, and mechanical properties enables the rational design of high-entropy alloys (HEAs). In this article the authors construct nanolamellar Alx-CoCuFeNi HEAs with alternating high- and low-Al concentration layers and explore their mechanical properties using a combination of molecular dynamic simulation and density functional theory calculation.
Date:
October 13, 2023
Creator:
Chen, Shuai; Liu, Ping; Pei, Qingxiang; Yu, Zhi Gen; Aitken, Zachary H.; Li, Wanghui et al.
Object Type:
Article
System:
The UNT Digital Library
Author Correction: MXene/graphene oxide nanocomposites for friction and wear reduction of rough steel surfaces
Correction to the article points out an error in Figure 1e. The figure is corrected in this article.
Date:
October 11, 2023
Creator:
Macknojia, Ali Zayaan; Ayyagari, Aditya; Shevchenko, Elena V. & Berman, Diana
Object Type:
Article
System:
The UNT Digital Library
Tribocatalytically-active nickel/cobalt phosphorous films for universal protection in a hydrocarbon-rich environment
Article describes how high-contact stresses generated at the sliding interfaces during their relative movement provide a unique combination of local heating and shear- and load-induced compression conditions. The authors of the article employ the electrodeposition process to design a coating composed of a hard cobalt-phosphorous matrix with the inclusion of tribocatalytically-active nickel clusters.
Date:
July 5, 2023
Creator:
Shirani, Asghar; Al Sulaimi, Rawan; Macknojia, Ali Zayaan; Eskandari, Mohammad & Berman, Diana
Object Type:
Article
System:
The UNT Digital Library
MXene/graphene oxide nanocomposites for friction and wear reduction of rough steel surfaces
Article describes how development of solid lubricant materials that render reliable performance in ambient conditions, are amenable to industrial size and design complexities, and work on engineered surfaces is reported. This report presents the holistic exploration and correlation of structure-property-processing pertaining to the advancement of solid lubrication science.
Date:
July 8, 2023
Creator:
Macknojia, Ali Zayaan; Ayyagari, Aditya; Shevchenko, Elena V. & Berman, Diana
Object Type:
Article
System:
The UNT Digital Library
Underlying factors determining grain morphologies in high-strength titanium alloys processed by additive manufacturing
Article describes how, in recent research, additions of solute to Ti and some Ti-based alloys have been employed to produce equiaxed microstructures when processing these materials using additive manufacturing. The present study develops a computational scheme for guiding the selection of such alloying additions, and the minimum amounts required, to effect the columnar to equiaxed microstructural transitions.
Date:
June 6, 2023
Creator:
Nartu, Mohan S. K. K. Y.; Welk, Brian A.; Mantri, Srinivas Aditya; Taylor, Nevin L.; Viswanathan, Gopal B.; Dahotre, Narendra B. et al.
Object Type:
Article
System:
The UNT Digital Library
Accessibility and Mechanical Stability of Nanoporous Zinc Oxide and Aluminum Oxide Coatings Synthesized via Infiltration of Polymer Templates
Article describes how the conformal nanoporous inorganic coatings with accessible pores that are stable under applied thermal and mechanical stresses represent an important class of materials used in the design of sensors, optical coatings, and biomedical systems. Authors synthesize porous AlOx and ZnO coatings by the sequential infiltration synthesis (SIS) of two types of polymers that enable the design of porous conformal coatings.
Date:
October 14, 2023
Creator:
Omotosho, Khalil D.; Lyon, Zachary; Shevchenko, Elena V. & Berman, Diana
Object Type:
Article
System:
The UNT Digital Library
Phase-Specific Damage Tolerance of a Eutectic High Entropy Alloy
Article describes how phase-specific damage tolerance was investigated for the AlCoCrFeNi2.1 high entropy alloy with a lamellar microstructure of L12 and B2 phases. Distinct differences in micro-scale deformation mechanisms were reflected in post-compression fractography, with L12-phase cantilevers showing typical characteristics of ductile failure, including the activation of multiple slip lanes, shear lips at the notch edge, and tearing inside the notch versus quasi-cleavage fracture with cleavage facets and a river pattern on the fracture surface for the B2-phase cantilevers.
Date:
November 30, 2023
Creator:
Jha, Shristy; Mishra, R. S. & Mukherjee, Sundeep
Object Type:
Article
System:
The UNT Digital Library
Molten Salt Corrosion Behavior of Dual-Phase High Entropy Alloy for Concentrating Solar Power Systems
Article describes how dual-phase high entropy alloys have recently attracted widespread attention as advanced structural materials due to their unique microstructure, excellent mechanical properties, and corrosion resistance. The molten salt corrosion behavior of AlCoCrFeNi2.1 eutectic high-entropy alloy was evaluated in molten NaCl-KCl-MgCl2 salt at 450° C and 650° C in comparison to conventional duplex stainless steel 2205.
Date:
February 4, 2023
Creator:
Patel, Kunjal; Hasannaeimi, Vahid; Sadeghilaridjani, Maryam; Muskeri, Saideep; Mahajan, Chaitanya & Mukherjee, Sundeep
Object Type:
Article
System:
The UNT Digital Library
Effect of Cu and Ni Inclusion on Tribological Performance of Tribocatalytically Active Coatings in Hydrocarbon Environments
Article describes how protective coatings are important for enhancing tribological behavior, preventing surface degradation, and reducing friction-induced energy losses during the operation of mechanical systems. The authors study the effect of catalytic metals, specifically their compositions and amount, on the tribocatalysis process.
Date:
December 31, 2023
Creator:
Sulaimi, Rawan Al; Eskandari, Mohammad; Shirani, Asghar; Macknojia, Ali Zayaan; Miller, Wesley & Berman, Diana
Object Type:
Article
System:
The UNT Digital Library
Highly Pseudocapacitive Storage Design Principles of Heteroatom-Doped Graphene anode in Calcium-Ion Batteries
Article describes how pseudocapacitive storage of multivalent ions, especially Ca2+, in heteroatom-doped carbon nanomaterials is promising to achieve both high energy and power densities, but there is the lack of pseudocapacitive theories that enable rational design of the materials for calcium-ion batteries.
Date:
August 22, 2023
Creator:
Gao, Yong; Li, Zhenglong; Weng, Pan; Cui, Wengang; Wang, Xiaowei; Yang, Yaxiong et al.
Object Type:
Article
System:
The UNT Digital Library
Boosting Piezoelectricity by 3D Printing PVDF-MoS2 Composite as a Conformal and High-Sensitivity Piezoelectric Sensor
Article describes how additively manufactured flexible and high-performance piezoelectric devices are highly desirable for sensing and energy harvesting of 3D conformal structures. This study reports a significantly enhanced piezoelectricity in polyvinylidene fluoride (PVDF) achieved through the in situ dipole alignment of PVDF within PVDF-2D molybdenum disulfide composite by 3D printing.
Date:
June 21, 2023
Creator:
Islam, M.D, Nurul; Rupom, Rifat Hasan; Adhikari, Pashupati R.; Demchuk, Zoriana; Popov, Ivan; Sokolov, Alexei P. et al.
Object Type:
Article
System:
The UNT Digital Library
Planar shock compression of spark plasma sintered B4C and B4C-TiB2 ceramic composites
Article describes how blending of ceramic constituent phases enhances sinterability and performance in high strength ceramics. The authors describe how a near fully dense blended boron carbide (B4C)-titanium diboride (TiB2) composite produced through spark plasma sintering (SPS) is probed to understand the mechanical performance under dynamic uniaxial strain, or shock compression.
Date:
January 24, 2024
Creator:
Turnage, Scott A.; Clayton, John D.; Rodriguez, Jonathan; Scharf, Thomas W. & Williams, Cyril L.
Object Type:
Article
System:
The UNT Digital Library
Multimodal and multiscale strengthening mechanisms in Al-Ni-Zr-Ti-Mn alloy processed by laser powder bed fusion additive manufacturing
Article describes how the unique thermokinetics of laser-powder bed fusion additive manufacturing has been exploited for development of a novel high strength Al-Ni-Ti-Zr-Mn alloy. The authors say that the addition of 0.5 wt% Mn leads to extraordinary improvement in ultimate tensile strength (502 MPa) and work hardening due to the activation of two Mn-induced strengthening mechanisms
Date:
December 29, 2023
Creator:
Dhal, Abhijeet; Thapliyal, Saket; Agrawal, Priyanka; Roy, Ankita; Sharma, Aishani; Mishra, R. S. et al.
Object Type:
Article
System:
The UNT Digital Library
Light Confinement in Twisted Single-Layer 2D+ Moiré Photonic Crystals and Bilayer Moiré Photonic Crystals
Article reporting optical properties of twisted single-layer 2D+ moiré photonic crystals where there is a weak modulation in z direction, and bilayer moiré-overlapping-moiré photonic crystals. This study leads to a potential application of 2D+ moiré photonic crystal in future on-chip optoelectronic integration.
Date:
December 25, 2023
Creator:
Kamau, Steve; Hurley, Noah; Kaul, Anupama; Cui, Jingbiao & Lin, Yuankun
Object Type:
Article
System:
The UNT Digital Library
CAREER: Liquid Crystal-Templated Sequential Infiltration Synthesis of Hybrid Organic/Inorganic Materials with Multidimensional Chiral Structures
Data management plan for the grant, "CAREER: Liquid Crystal-Templated Sequential Infiltration Synthesis of Hybrid Organic/Inorganic Materials with Multidimensional Chiral Structures"
Date:
2024-03-01/2029-02-28
Creator:
Li, Xiao
Object Type:
Text
System:
The UNT Digital Library
Collaborative Research: DMREF: AI-enabled Automated design of ultrastrong and ultraelastic metallic alloys
Data management plan for the grant, "Collaborative Research: DMREF: AI-enabled Automated design of ultrastrong and ultraelastic metallic alloys"
Date:
2024-01-15/2027-09-30
Creator:
Zheng, Yufeng
Object Type:
Text
System:
The UNT Digital Library
Room and Elevated Temperature Sliding Friction and Wear Behavior of Al0.3CoFeCrNi and Al0.3CuFeCrNi2 High Entropy Alloys
Article discusses how, in this study, processing–structure–property relations were systematically investigated at room and elevated temperatures for two FCC Al0.3CoFeCrNi and Al0.3CuFeCrNi2 high-entropy alloys (HEAs), also known as complex concentrated alloys (CCAs), prepared by conventional arc-melting. It was determined that both alloys exhibit FCC single-phase solid solution structure. Micro-indentation and sliding wear tests were performed to study the hardness and tribological behavior and mechanisms at room and elevated temperatures.
Date:
April 2, 2023
Creator:
Kadhim, Dheyaa F.; Korcherla, Manindra V. & Scharf, Thomas W.
Object Type:
Article
System:
The UNT Digital Library
Tuning the temperature range of superelastic Ni-Ti alloys for elastocaloric cooling via thermal processing
Article describes how caloric cooling enlisting solid-state refrigerants is potentially a promising eco-friendly alternative to conventional cooling based on vapor compression. Here, the authors have explored tuning the operation temperature range of Ni50.8Ti49.2 for elastocaloric cooling. In particular, they have studied the effect of thermal treatments (a.k.a. aging) on the transformation temperature, superelasticity, and elastocaloric effects of Ni50.8Ti49.2 shape memory alloy tubes.
Date:
April 28, 2023
Creator:
Yamazaki, Takahiro; Montagnoli, Andre L.; Young, Marcus L. & Takeuchi, Ichiro
Object Type:
Article
System:
The UNT Digital Library
Dynamic Motions of Topological Defects in Nematic Liquid Crystals under Spatial Confinement
Article discusses how topological defects (TDs) have become a sensational topic due to their significant influence on the unusual optical and physiochemical characteristics of the material. Here, authors assert how nematic liquid crystals confined in a cell exhibiting surfaces with periodic anchoring conditions containing surface topography are relied on.
Date:
April 25, 2023
Creator:
Pawale, Tejal; Swain, Justin; Hashemi, Mohammad Reza; Tierra, Giordano & Li, Xiao
Object Type:
Article
System:
The UNT Digital Library
A Critical Review of Laser Shock Peening of Aircraft Engine Components
Article describes how many aviation accidents are caused by the failure of aircraft engine components, and engine blades are especially vulnerable to high-cycle fatigue fracture in severe working environments as well as to impact damage caused by foreign objects. This review provides an overview of the development of LSP for use in treating aircraft engine components over the past three decades, with a brief introduction to the development of high-energy pulsed lasers for LSP.
Date:
May 3, 2023
Creator:
Ye, Yixuan; Zhang, Yu; Huang, Tao; Zou, Shikun; Dong, Yalin; Ding, Han et al.
Object Type:
Article
System:
The UNT Digital Library
Laser powder bed fusion processing of a precipitation strengthenable FCC based high entropy alloy
Article describes how, while additive manufacturing (AM) of single-phase solid solution based high entropy alloys (HEAs) has attracted a lot of recent attention, such processing of precipitation strengthenable multi-phase HEAs has not been actively investigated. This becomes important since AM processing results in each layer experiencing rapid solidification followed by multiple heating-cooling cycles, mimicking in situ heat treatments, potentially influencing the phase evolution.
Date:
March 21, 2023
Creator:
Chesetti, Advika; Banerjee, Sucharita; Dasari, Sriswaroop; Varahabhatla, S.M.; Sharma, Abhishek; Mantri, Srinivas Aditya et al.
Object Type:
Article
System:
The UNT Digital Library
Mapping hierarchical and heterogeneous micromechanics of a transformative high entropy alloy by nanoindentation and machine learning augmented clustering
Article describes how conventional macromechanical tests provide limited insights into complex hierarchical deformation behavior of a transformative high entropy alloy (HEA). In this work, a high throughput microstructure-micromechanical correlative study is presented by combining high-resolution nanoindentation, site-specific microscopy, and Gaussian mixture model (GMM) clustering.
Date:
April 26, 2023
Creator:
Dhal, Abhijeet; Haridas, Ravi Sankar; Agrawal, Priyanka; Gupta, Sanya & Mishra, R. S.
Object Type:
Article
System:
The UNT Digital Library