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Facile Photochemical Syntheses of Conjoined Nanotwin Gold-Silver Particles within a Biologically-Benign Chitosan Polymer

Description: This article developed a simple photochemical method for making conjoined bi-metallic gold-silver (Au/Ag) nanotwins, a new breed of nanoparticles.
Date: April 11, 2019
Creator: Korir, Daniel K.; Gwalani, Bharat; Joseph, Abel; Kamras, Brian; Arvapally, Ravi K.; Omary, Mohammad A. et al.
Item Type: Refine your search to only Article
Partner: UNT College of Science
open access

Physical and optical properties of the International Simple Glass

Description: This article presents physical property data (both published and previously unpublished) on a single batch of International Simple Glass (ISG), which was cast into individual ingots that were distributed to the collaborators. Properties from the atomic scale to the macroscale, including composition and elemental impurities, phase purity, density, thermal properties, mechanical properties, optical and vibrational properties, and the results of molecular dynamics simulations are presented, as wel… more
Date: April 3, 2019
Creator: Kaspar, Tiffany C.; Ryan, Joseph V.; Pantano, Carlo G.; Rice, Jarrett; Trivelpiece, Cory; Hyatt, Neil C. et al.
Item Type: Refine your search to only Article
Partner: UNT College of Engineering
open access

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

Description: Article provides an equation relating the linear isobaric expansivity to the brittleness B for a number of polymers with a large variety of chemical structures and consequently with a large variety of properties.
Date: February 19, 2019
Creator: Brostow, Witold, 1934- & Osmanson, Allison T.
Item Type: Refine your search to only Article
Partner: UNT College of Engineering

Dynamic Deformation and Shear Localization in Friction-Stir Processed Al0.3CoCrFeNi and Fe50Mn30Co10Cr10 High-Entropy Alloys

Description: High entropy alloys (HEAs) are a relatively new class of solid solution alloys that contain multiple principal elements to take advantage of their high configurational entropy, sluggish diffusion, lattice distortion, and the cocktail effect. In recent development, work hardening mechanisms known as twinning induced plasticity (TWIP) and transformation induced plasticity (TRIP) have been found active in Al0.3CoCrFeNi (molar fraction) and Fe50Mn30Co10Cr10 (at %) HEA compositions. Friction-stir pr… more
Access: Restricted to UNT Community Members. Login required if off-campus.
Date: August 2019
Creator: Macdonald, Neil
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries

Charpy Impact Testing of Twinning Induced Plasticity and Transformation Induced Plasticity High Entropy Alloys

Description: High entropy alloys (HEAs) are a new class of solid solution alloys that contain multiple principal elements and possess excellent mechanical properties, from corrosion resistance to fatigue and wear resistance. Even more recently, twinning induced plasticity (TWIP) and transformation induced plasticity (TRIP) non-equiatomic high entropy alloys have been engineered, promising increased strength and ductility as compared to their equiatomic counterparts. However, impact and fracture resistance o… more
Access: Restricted to UNT Community Members. Login required if off-campus.
Date: August 2019
Creator: Zellner, Samantha R
Item Type: Refine your search to only Thesis or Dissertation
Partner: UNT Libraries
open access

Growth of pulsed laser deposited few-layer WS2 films

Description: This article performs X-ray photoelectron, Raman, and diffraction studies of few-layered pulsed laser deposited WS₂ films as a function of laser fluence and frequency to understand the impact on structure and properties.
Date: August 13, 2019
Creator: Rathod, Urmilaben P.; Cai, Bimin; Iheomamere, Chukwudi; Nyandoto, Gilbert; Voevodin, Andrey A. & Shepherd, Nigel D.
Item Type: Refine your search to only Article
Partner: UNT College of Engineering
open access

Composition-dependent apparent activation-energy and sluggish grain-growth in high entropy alloys

Description: Article discusses experimental results which reveal that the apparent activation-energy for grain-growth in an fcc-based AlxCoCrFeNi high entropy alloy (HEA) system increases from 179 to 486 kJ/mol when the Al content increases from x = 0.1 to 0.3.
Date: April 10, 2019
Creator: Gwalani, Bharat; Salloom, Riyadh; Alam, Talukder; Valentin, S.G.; Zhou, X.; Thompson, G. et al.
Item Type: Refine your search to only Article
Partner: UNT College of Engineering
open access

A novel nano-particle strengthened titanium alloy with exceptional specific strength

Description: 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, en… more
Date: August 13, 2019
Creator: Dutt, Aniket K.; Gwalani, Bharat; Tungala, Vedavyas; Carl, Matthew; Mishra, Rajiv; Tamirisakandala, Sesh A. et al.
Item Type: Refine your search to only Article
Partner: UNT College of Engineering
open access

Corrosion Behavior of Selectively Laser Melted CoCrFeMnNi High Entropy Alloy

Description: 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 condu… more
Date: September 23, 2019
Creator: Ren, Jie; Mahajan, Chaitanya; Liu, Liang; Follette, David; Chen, Wen & Mukherjee, Sundeep
Item Type: Refine your search to only Article
Partner: UNT College of Engineering
open access

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

Description: 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
Item Type: Refine your search to only Article
Partner: UNT College of Engineering
open access

Metal Coordination‐Mediated Functional Grading and Self‐Healing in Mussel Byssus Cuticle

Description: Article demonstrates direct evidence of Fe3+ and Fe2+ gradient distribution across mussel byssal cuticle threads thickness, which shows more Fe2+ inside the inner cuticle, to support the hypothesis that the cuticle is a functionally graded material with high stiffness, extensibility, and self‐healing capacity.
Date: October 24, 2019
Creator: Xu, Quan; Xu, Meng; Lin, Chun-Yu; Zhao, Qiang; Zhang, Rui; Dong, Xiaoxiao et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries
open access

Synthesis, characterization, and in vitro evaluation of gamma radiation-induced PEGylated isoniazid

Description: Article describes experiment where researchers synthesized a PEGylated isoniazid (PEG-g-INH or PEG–INH) by gamma radiation-induced polymerization for the first time.
Date: August 6, 2019
Creator: González-Torres, Maykel; Guzmán-Beltrán, Silvia; Mata-Gómez, Marco A.; González-Valdez, José; Leyva-Gómez, Gerardo; Melgarejo-Ramírez, Yaaziel et al.
Item Type: Refine your search to only Article
Partner: UNT College of Engineering
open access

Surface degradation mechanisms in a eutectic high entropy alloy at microstructural length-scales and correlation with phase-specific work function

Description: Article evaluating wear and corrosion behavior for the AlCoCrFeNi2.1 eutectic high entropy alloy consisting of BCC (B2), and FCC (L12) lamellae.
Date: April 19, 2019
Creator: Hasannaeimi, Vahid; Ayyagari, Aditya; Muskeri, Saideep; Salloom, Riyadh & Mukherjee, Sundeep
Item Type: Refine your search to only Article
Partner: UNT College of Engineering
open access

Detrimental Effects and Prevention of Acidic Electrolytes on Oxygen Reduction Reaction Catalytic Performance of Heteroatom-Doped Graphene Catalysts

Description: Article describes study in which the density functional theory (DFT) methods were applied to understand the inferior performance of doped graphene in acid.
Date: November 21, 2019
Creator: Ma, Jun; Gong, Lele; Shen, Yang; Sun, Defeng; Liu, Bowen; Zhang, Jing et al.
Item Type: Refine your search to only Article
Partner: UNT College of Engineering
open access

Effect of solution condition on hydroxyapatite formation in evaluating bioactivity of B2O3 containing 45S5 bioactive glasses

Description: Article describes study investigating the effects of testing solutions and conditions on hydroxyapatite (HAp) formation as a means of in vitro bioactivity evaluation of B2O3 containing 45S5 bioactive glasses.
Date: June 5, 2019
Creator: Lu, Xiaonan; Kolzow, Jessica; Chen, Roberto R. & Du, Jincheng
Item Type: Refine your search to only Article
Partner: UNT College of Engineering
open access

Sculpted grain boundaries in soft crystals

Description: Article describes study in which "soft heteroepitaxy” is used to exert precise control over the lattice orientation of three-dimensional liquid crystalline soft crystals, thereby granting the ability to sculpt the grain boundaries between them.
Date: November 29, 2019
Creator: Li, Xaio; Martínez-González, José A.; Guzmán, Orlando; Ma, Xuedan; Park, Kangho; Zhou, Chun et al.
Item Type: Refine your search to only Article
Partner: UNT College of Engineering
open access

Nature-Guided Synthesis of Advanced Bio-Lubricants

Description: Article describes study which finds that Orychophragmus violaceus (Ov) seed oil has superior lubrication properties, based on the unusual structural features of the major lipid species—triacylglycerol (TAG) estolides.
Date: August 12, 2019
Creator: Romsdahl, Trevor; Shirani, Asghar; Minto, Robert E.; Zhang, Chunyu; Cahoon, Edgar B.; Chapman, Kent Dean et al.
Item Type: Refine your search to only Article
Partner: UNT Libraries
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