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292 Matching Results
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Exceptional increase in the creep life of magnesium rare-earth alloys due to localized bond stiffening
Article describes study in which researchers attribute the 600% increase in creep life in a prototypical Mg–rare earth (RE)–Zn alloy to multiple mechanisms caused by RE–Zn bonding—stabilization of a large volume fraction of strengthening precipitates on slip planes, increase in vacancy diffusion barrier, reduction in activated cross-slip, and enhancement of covalent character and bond strength around Zn solutes along the c-axis of Mg using atomic-scale characterization and first principles calculations.
Date:
December 8, 2017
Creator:
Choudhuri, Deep; Srivilliputhur, Srinivasan; Gibson, Mark A.; Zheng, Yufeng; Jaeger, David L.; Fraser, Hamish L. et al.
Object Type:
Article
System:
The UNT Digital Library
Embedded Corrosion Sensing with ZnO-PVDF Sensor Textiles
Article investigating a non-conductive sensor textile as a viable solution for corrosion in underground and submerged steel pipes. The results offer a new option for sub-surface corrosion sensing using low cost, easily fabricated sensor textiles.
Date:
May 28, 2020
Creator:
Chowdhury, Tonoy; D'Souza, Nandika Anne, 1967-; Ho, Yee-Hsien; Dahotre, Narendra B. & Mahbub, Ifana
Object Type:
Article
System:
The UNT Digital Library
Investigation of structural morphology and electrical properties of graphene-C₆₀ hybrids
This article reports on the electrophoretic deposition of C₆₀ on graphene. The results suggest that graphene based C₆₀ structures are attractive as flexible transparent electrodes and are excellent electron accepting/charge transport materials for the construction of efficient photovoltaic devices.
Date:
May 2, 2017
Creator:
Chugh, Srishti; Biswas, Chandan; Echegoyen, Luis & Kaul, Anupama
Object Type:
Article
System:
The UNT Digital Library
Laser-Assisted Machining (LAM) of Hard Tissues and Bones
Patent relating to a system and methods of machining hard tissues, such as bone.
Date:
March 17, 2014
Creator:
Dahotre, Narendra B. & Santhanakrishnan, Soundarapandian
Object Type:
Patent
System:
The UNT Digital Library
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
Laser Surface Engineering for Improved Biocompatibility of Orthopedic Biomaterials
Poster presentation for the 2012 University Scholars Day at the University of North Texas discussing research on laser surface engineering for improved biocompatibility of orthopedic biomaterials.
Date:
April 19, 2012
Creator:
Dahotre, Sanket; Paital, Sameer & Banerjee, Rajarshi
Object Type:
Poster
System:
The UNT Digital Library
Engineering transformation pathways in an Al0.3CoFeNi complex concentrated alloy leads to excellent strength–ductility combination
Article reports a novel multi-phase microstructure in a HEA/CCA similar to the microstructure observed in dual-phase stainless steel.
Date:
July 2, 2020
Creator:
Dasari, S.; Jagetia, Abhinav; Soni, V.; Gwalani, Bharat; Banerjee, Rajarshi & Gorsse, Stéphane
Object Type:
Article
System:
The UNT Digital Library
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
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
Inkjet printing of liquid-exfoliated, highly conducting graphene/poly(3,4 ethylenedioxythiophene):poly(styrenesulfonate) nanosheets for organic electronics
In this article, highly dispersive graphene inks are demonstrated by liquid-phase exfoliation of the bulk graphite crystal in the solvent N-methyl-2-pyrrolidone (NMP).
Date:
May 4, 2017
Creator:
Desai, Jay A.; Biswas, Chandan & Kaul, Anupama
Object Type:
Article
System:
The UNT Digital Library
Inks of dielectric h-BN and semiconducting WS₂ for capacitive structures with graphene
This article presents dispersions of WS₂ and h-BN using cyclohexanone and terpineol as the solvent to subsequently print prototype capacitive nanodevices.
Date:
July 30, 2020
Creator:
Desai, Jay A.; Mazumder, Sangram; Hossain, Ridwan Fayaz & Kaul, Anupama
Object Type:
Article
System:
The UNT Digital Library
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
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
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
Multiscale hierarchical and heterogeneous mechanical response of additively manufactured novel Al alloy investigated by high-resolution nanoindentation mapping
Article contains a study that combined multiscale nanomechanical and microstructural mapping to illustrate mechanical signatures associated with hierarchical heat distribution and rapid solidification of laser-powder bed fusion additive manufacturing (L-PBFAM). The presented approach serves as a high throughput methodology to establish the chemistry-processing-microstructure-properties correlation of newly designed alloys for L-PBFAM.
Date:
October 31, 2022
Creator:
Dhal, Abhijeet; Thapliyal, Saket; Gaddam, Supreeth; Agrawal, Priyanka & Mishra, R. S.
Object Type:
Article
System:
The UNT Digital Library
Comparing the Knotless Tension Band and the Traditional Stainless Steel Wire Tension Band Fixation for Medial Malleolus Fractures: A Retrospective Clinical Study
Article describes investigation which sought to to retrospectively compare this traditional wire technique to an innovative knotless tension band (KTB) technique in order to decrease costly complications.
Date:
May 12, 2016
Creator:
Downey, Michael W.; Duncan, Kyle; Kosmopoulos, Victor; Motley, Travis A.; Carpenter, Brian B.; Ogunyankin, Fadeke et al.
Object Type:
Article
System:
The UNT Digital Library
A novel nano-particle strengthened titanium alloy with exceptional specific strength
This article microstructurally tailors an exceptionally high-strength titanium alloy, Ti-6Al-2Sn-4Zr-6Mo (Ti6246) through friction stir processing (FSP) in order to provide enhanced weight savings and improved fuel efficiency. The specific strength attained in one of the conditions is close to 450 MPa m³/mg, which is about 22% to 85% greater than any commercially available metallic material. This novel nano particle strengthened Ti alloy is a potential replacement for many structural alloys, enabling significant weight reduction opportunities.
Date:
May 7, 2019
Creator:
Dutt, Aniket K.; Gwalani, Bharat; Tungala, Vedavyas; Carl, Matthew; Mishra, Rajiv; Tamirisakandala, Sesh A. et al.
Object Type:
Article
System:
The UNT Digital Library
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
Feasibility Study of Compaction and Sintering of Commercially Pure Titanium using Friction Stir Processing
This article explores the possibility of decreasing the number of steps required in the manufacturing of a product using the powder metallurgy technique.
Date:
May 22, 2018
Creator:
Fortier, Aleksandra; Kumar, Nilesh; Komarasamy, Mageshwari & Mishra, Rajiv
Object Type:
Article
System:
The UNT Digital Library
Correlating work hardening with co-activation of stacking fault strengthening and transformation in a high entropy alloy using in-situ neutron diffraction
Article using in-situ neutron diffraction to correlate SF strengthening to work hardening behavior in a low SFE Fe40Mn20Cr15Co20Si5 (at%) high entropy alloy, SFE ~ 6.31 mJ m−2. Cooperative activation of multiple mechanisms was indicated by increases in SF strengthening and γ-f.c.c. → ε-h.c.p. transformation leading to a simultaneous increase in strength and ductility. The present study demonstrates the application of in-situ, neutron or X-ray, diffraction techniques to correlating SF strengthening to work hardening.
Date:
December 17, 2020
Creator:
Frank, M.; Nene, Saurabh S.; Chen, Y.; Gwalani, B.; Kautz, E. J.; Devaraj, A. et al.
Object Type:
Article
System:
The UNT Digital Library
Friction stir welding of SS 316 LN and Nitronic 50 jacket sections for application in superconducting fusion magnet systems
Article explores the possibility of using friction stir welding (FSW) to join jacket web sections of two nitrogen-containing stainless steels for housing internally cooled superconducting cables which are utilized to generate magnetic fields in tokamak type fusion reactor systems. It has been shown that the FSW fabricated SS 316 LN jackets possessed the required strength and magnetic properties critical to this application.
Date:
July 16, 2022
Creator:
Gaddam, Supreeth; Haridas, Ravi Sankar; Sanabria, Charlie; Tammana, Deepthi; Berman, Diana & Mishra, R. S.
Object Type:
Article
System:
The UNT Digital Library
3D-printed and injection molded polymer matrix composites with 2D layered materials
This article reports on a study where 2D TMDs (MoS₂ and WS₂) and the 3D allotrope of carbon and graphite were incorporated into acrylonitrile butadiene styrene (ABS) and polyethylene terephthalate glycol (PETG) matrices in order to form polymer matrix composites (PMCs). The multipronged analysis described in this study was motivated by the purpose to fuse together topics of low-cost, additive manufacturing with 2D layered materials, and studying their ensuing mechanical and tribological properties.
Date:
June 26, 2020
Creator:
Gamboa, Gerardo; Mazumder, Sangram; Hnatchuk, Nathalie; Catalan Gonzalez, Jorge Alfredo; Cortes, Damaris; Chen, Ikang et al.
Object Type:
Article
System:
The UNT Digital Library
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
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