UNT College of Engineering - 948 Matching Results

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Correlating work hardening with co-activation of stacking fault strengthening and transformation in a high entropy alloy using in-situ neutron diffraction

Description: 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 strengthen… more
Date: December 17, 2020
Creator: Frank, M.; Nene, Saurabh S.; Chen, Y.; Gwalani, B.; Kautz, E. J.; Devaraj, A. et al.
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Computational Assessment of Thermokinetics and Associated Microstructural Evolution in Laser Powder Bed Fusion Manufacturing of Ti6Al4V Alloy

Description: This article develops a three-dimensional thermokinetic model based on the finite element method to correlate with the microstructure evolved in additively manufactured Ti6Al4V alloy.
Date: May 5, 2020
Creator: Pantawane, Mangesh V.; Ho, Yee-Hsien; Joshi, Sameehan & Dahotre, Narendra B.
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Can a simple topological-constraints-based model predict the initial dissolution rate of borosilicate and aluminosilicate glasses?

Description: This article, as an alternative route to empirical models, shows that a structural descriptor based on the number of topological constraints per atom can be used to predict the initial dissolution rate of aluminosilicate and borosilicate glasses after being parameterized on different families of glasses (specific series of borosilicate glasses). Results show that, provided that corrections are made for high alkali content glasses that dissolve incongruently (preferential release of Na), the mod… more
Date: March 16, 2020
Creator: Gin, Stéphane; Wang, Mengyi; Bisbrouck, Nicolas; Taron, Mélanie; Lu, Xiaonan; Deng, Lu et al.
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Tomographic mapping of the nanoscale water-filled pore structure in corroded borosilicate glass

Description: This article applies cryo-based atom probe tomography to directly reveal the water-solid interface and hydrated corrosion layers making up the nanoscale porous structure of a corroded borosilicate glass in its native aqueous environment. The analysis includes morphology and compositional mapping of the inner gel/glass interface, isolation of a tomographic sub-volume of the tortuous water-filled gel, and comparison of the gel structure with simulations.
Date: March 18, 2020
Creator: Perea, Daniel E.; Schreiber, Daniel K.; Ryan, Joseph V.; Wirth, Mark G.; Deng, Lu; Lu, Xiaonan et al.
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open access

Insights into the mechanisms controlling the residual corrosion rate of borosilicate glasses

Description: Article examining the glass durability and residual rate of borosilicate glass. The authors focus on the behavior of the soluble elements of the International Simple Glass (B, Na, and Ca) to show that the residual rate is controlled by the behavior of B, a glass former supposed to dissolve instantaneously when in contact with water and thus widely considered as an ideal tracer. The article demonstrates that B release is controlled by multiple processes highly dependent on the pH. A new paradigm… more
Date: December 11, 2020
Creator: Gin, Stéphane; Guo, Xiaolei; Delaye, Jean-Marc; Angeli, Frédéric; Damodaran, Kamalesh; Testud, Véronique et al.
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Hydrogen bonding interactions of H2O and SiOH on a boroaluminosilicate glass corroded in aqueous solution

Description: This article simulates hydrous species (H2O and Si-OH) on nano-porous alteration layers (gels) formed on a boroaluminosilicate glass called International Simple Glass corroded in aqueous solutions at pH 7 and pH 9, and initially saturated with soluble silicon-containing species were analyzed using linear and non-linear vibrational spectroscopy in combination with molecular dynamics simulations. The simulation and experimental results obtained in this study indicate that the water mobility in th… more
Date: January 7, 2020
Creator: Ngo, Dien; Liu, Hongshen; Chen, Zhe; Huseyin, Kaya; Zimudzi, Tawanda J.; Gin, Stéphane et al.
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Hollow Mesoporous Microspheres Coating for Super-Hydrophobicity Wood with High Thermostability and Abrasion Performance

Description: Article investigating the formation of hydrophobic layers on wood surface without breaking the wood’s original structure. Results suggested that the nano and micron hollow mesoporous microsphere coating was an effective method to fabricate extremely hydrophobic wood products.
Date: November 29, 2020
Creator: Yang, Rui; Zuo, Shida; Song, Beibei; Mao, Haiyan; Huang, Zhenhua; Wu, Yingji et al.
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open access

Sodium Lignosulfonate Modified Polystyrene for the Removal of Phenol from Wastewater

Description: Article synthesizing an eco-friendly and novel water treatment material using sodium lignosulfonate modified polystyrene (SLPS), which can be used to eliminate phenols in aqueous solution. Results show that SLPS displayed a great potential for eliminating phenol from polluted water as a kind of novel and effective adsorbent.
Date: October 27, 2020
Creator: Yang, Keyan; Xing, Jingchen; Chang, Jianmin; Gu, Fei; Li, Zheng; Huang, Zhenhua et al.
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open access

Plasmon-resonance emission tailoring of “origami” graphene-covered photonic gratings

Description: Article focusing on the modification of optical properties through folding, or “origami,” of graphene covering a plasmonic metal channel grating. This work is especially critical to understanding tailored deep plasmon emission from geometrically-modulated conducting sheets such as graphene.
Date: July 16, 2020
Creator: Araki, Ken & Zhang, Richard Z.
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Characterization of Soft Tooling Photopolymers and Processes for Micromixing Devices with Variable Cross-Section

Description: Article characterizing an assortment of photopolymers and stereolithography processes to produce 3D-printed molds and polydimethylsiloxane (PDMS) castings of micromixing devices. The study shows that 3D-printed soft tooling can provide other benefits such as multiple cross-sections and other potential layouts on a single mold.
Date: October 29, 2020
Creator: Martínez-López, J. Israel; Cervantes, Héctor Andrés Betancourt; Iturbe, Luis Donaldo Cuevas; Vázquez, Elisa; Naula, Edisson A.; Martínez López, Alejandro et al.
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Complex Concentrated Alloys (CCAs)—Current Understanding and Future Opportunities

Description: 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 15, 2020
Creator: Mukherjee, Sundeep
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open access

Opportunities and Issues in the Application of Titanium Alloys for Aerospace Components

Description: This article describes recent developments, issues, and opportunities associated with the production and use of Ti and its alloys in aerospace components. Included are new Ti alloys, new applications of Ti alloys, and the current status of several manufacturing processes including a discussion of the promise and current reality of additive manufacturing as a potentially revolutionary method of producing Ti alloy components.
Date: May 27, 2020
Creator: Williams, James C. & Boyer, Rodney R.
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Extended CT Void Analysis in FDM Additive Manufacturing Components

Description: This article provides an extended analysis of void shape by means of X-ray computed tomography (CT) applied to fused deposition modeling (FDM) samples. Furthermore, a relation between the tensile mechanical properties and digital void measurements is established. The results lead to the formulation of a novel criterion that predicts the mechanical behavior of AM components.
Date: August 30, 2020
Creator: Hernandez-Contreras, Adriana; Ruiz-Huerta, Leopoldo; Caballero-Ruiz, Alberto; Moock, Verena & Siller Carrillo, Héctor Rafael
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Rapid thermokinetics driven nanoscale vanadium clustering within martensite laths in laser powder bed fused additively manufactured Ti6Al4V

Description: Article reports the computational approach adopted for thermo-diffusion kinetics to rationalize homogenously distributed nanoscale vanadium-rich clusters formed within the martensite laths of Ti6Al4V alloy printed using laser powder bed fusion at an energy density of 52.08J/mm³.
Date: June 1, 2020
Creator: Pantawane, Mangesh V.; Dasari, Sriswaroop; Mantri, Srinivas Aditya; Banerjee, Rajarshi & Dahotre, Narendra B.
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Mining Potential Effects of HUMIRA in Twitter Posts Through Relational Similarity

Description: Article investigating HUMIRA effects mentioned in Twitter posts using a relational similarity-based method. The authors were able to identify effects previously known as well as potentially unreported, which demonstrates the power of this method and its potential for studying effects of other medications shared by Twitter users.
Date: June 16, 2020
Creator: Feng, Shichao; Jiang, Keyuan; Huang, Liyuan; Chen, Tingyu & Bernard, Gordon R.
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open access

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

Description: 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
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