UNT College of Engineering - 255 Matching Results

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Metastability-assisted fatigue behavior in a friction stir processed dual-phase high entropy alloy: This article explores metastability-based high entropy alloy design which can open a new strategic path for designing high strength materials. However, high strength is always coupled with poor damage tolerance under cyclic loading conditions (fatigue). To overcome this drawback, the articles presents grain-refined Fe42Mn28Cr15Co10Si5 exhibiting significantly high fatigue strength as compared with leading transformation induced plasticity steels upon friction stir processing.
Internally shunted sputtered niobium nitride Josephson junctions with a TaNx barrier for nonlatching logic applications: This article reports on the growth, fabrication, and device characterization of NbN internally shunted Josephson junctions with a TaNx barrier.
Fabrication of wide-IF 200–300GHz superconductor–insulator–superconductor mixers with suspended metal beam leads formed on silicon-on-insulator: This article reports on a fabrication process that uses silicon-oninsulator (SOI) substrates and micromachining techniques to form wide-IF superconductor–insulator–superconductor (SIS) mixer devices that have suspended metal beam leads for rf grounding. Aside from a description of the fabrication process, electrical measurements of these Nb/Al–AlNₓ /Nb trilayer devices will also be presented.
Method for Removing Contaminants on a Substrate: Patent relating to a method for removing contaminants on a substrate.
Method for using Filed Emitter Arrays in Chemical and Biological Hazard Mitigation and Remediation: Patent relating to a method for using field emitter arrays in chemical and biological hazard mitigation and remediation.
Probing Noise in Flux Qubits via Macroscopic Resonant Tunneling: Article on the characterization of noise in a flux qubit using macroscopic resonant tunneling between the two lowest lying states of a bistable rf SQUID. Analysis of these results indicates that the dominant source of low energy flux noise in this device is a quantum mechanical environment in thermal equilibrium.
Geometrical dependence of the low-frequency noise in superconducting flux qubits: Article reporting on a study of a series of 85 devices of vary design using a general method for directly measuring the low-frequency flux noise (below 10 Hz) in compound Josephson-junction superconducting flux qubits. The results support the hypothesis that local impurities in the vicinity of the qubit wiring are a key source of low-frequency flux noise in superconducting devices.
Impact Resistant Flexible Body Device: Patent relating to an impact resistant device that can be worn as body armor to protect the wearer from high velocity projectiles.
Interrogating vertically oriented carbon nanofibers with nanomanipulation for nanoelectromechanical switching applications: Article demonstrates electrostatic switching in vertically oriented carbon nanofibers synthesized on refractory metallic nitride substrates, where pull-in voltages Vpi ranged from 10 to 40 V. A finite element model was also developed to determine a theoretical Vpi and results were compared to experiment.
Synchronization of multiple coupled rf-SQUID flux qubits: Article demonstrating a practical strategy for synchronizing the properties of compound Josephson junction (CJJ) radio frequency monitored superconducting quantum interference device (rf-SQUID) qubits on a multi-qubit chip.
An investigation on the concrete properties containing colemanite: This article summarizes the results of an investigation on the effect of the colemanite on physical and mechanical properties of concrete using colemanite as replacement aggregate.
Temperature-dependent structural heterogeneity in calcium silicate liquids: This article discusses temperature-dependent structural heterogeneity in calcium silicate liquids.
Influence of Silanization Treatment on Thermomechanical Properties of Multiwalled Carbon Nanotubes: Poly(methylmethacrylate) Nanocomposites: This article reports results for functionalized as well as unfunctionalized carbon nanotube polymer composites.
Plasma Treated Multi-Walled Carbon Nanotubes (MWCNTs) for Epoxy Nanocomposites: This article describes the depositing of plasma nanocoating of allylamine on the surfaces of multi-walled carbon nanotubes to provide desirable functionalities and thus to tailor the surface characteristics of multi-walled carbon nanotubes for improved dispersion and interfacial adhesion in epoxy matrices.
Carbon Nanomaterials for Optical Absorber Applications: Article describing optical absorbers based on vertically aligned multi-walled carbon nanotubes (MWCNTs), synthesized using electric-field assisted growth that show an ultra-low reflectance, 100X lower compared to the benchmark, a diffuse metal black - Au-black - from wavelength λ ~ 350 nm – 2500 nm.
Bulk Nanostructured Metals and Alloys: Processing, Structure, and Thermal Stability: Introduction to a special issue of the Journal of Nanomaterials focusing on bulk nanostructured alloys and metals.
Laser Machining of Structural Ceramics: An Integrated Experimental and Numerical Approach for Surface Finish: Poster awarded first place in the 2013 UNT Graduate Exhibition in the Engineering category. This poster discusses laser machining of structural ceramics and an integrated experimental and numerical approach for surface finish.
Anti-Fretting Wear Coating for Substrates: Patent relating to an anti-fretting wear coating for substrates.
Facile, scalable synthesis of edge-halogenated graphene nanoplatelets as efficient metal-free eletrocatalysts for oxygen reduction reaction: Article on facile, scalable synthesis of edge-halogenated graphene nanoplatelets as efficient metal-free electrocatalysts for oxygen reduction reaction.
Solid Lubricating, Hard and Fracture Resistant Composites for Surface Engineering Applications: Patent relating to solid lubricating, hard and fracture resistant composites for surface engineering applications.
Self-Assembly Techniques for Nanofabrication: Article introduces a special issue of the Journal of Nanomaterials that addresses the research studies on fabrication, processing, and applications of self-assembled nanostructures.
Nanopatterned Graphene Field Effect Transistor Fabricated Using Block Co-polymer Lithography: This article demonstrates a successful fabrication of Nanopatterened Graphene (NPG) using a PS-b-P4VP polymer.
Some Issues in Cohesive Surface Modeling: Article provides an overview of issues in cohesive surface formulation that are of interest to the author.
Point-by-Point Compositional Analysis for Atom Probe Tomography: This article demonstrates a new alternate approach to data processing for analyses that traditionally employed grid-based counting methods, as demonstrated using an atom-probe analysis of a Ni-based super-alloy.
Slurry Erosion of Thermal Spray Coatings: Effect of Sand Concentration: This paper from the Malaysian International Tribology Conference 2013 conference proceedings discusses using Ni based thermal spray coatings deposited on a commonly used hydroturbine steel.
Analyzing the Effectiveness of Microlubrication Using a Vegetable Oil-Based Metal Working Fluid during End Milling AISI 1018 Steel: This article describes a study in which a vegetable oil-based lubricant was used to conduct wear analysis and to analyze the effectiveness of microlubrication during end milling AISI 1018 steel.
Controlling the length scale and distribution of the ductile phase in metallic glass composites through friction stir processing: This article demonstrates the refinement and uniform distribution of the crystalline dendritic phase by friction stir processing of titanium based in situ ductile-phase reinforced metallic glass composite.
Development and application of a novel precession electron diffraction technique to quantify and map deformation structures in highly deformed materials—as applied to ultrafine-grained titanium: Article describes precession electron diffraction (PED), which makes possible the very accurate and automated quantitative characterization of technically interesting materials that historically have been difficult to analyze due to their dimensions and/or degree of deformation, including specifically ultrafine-grained metallic structures with high dislocation densities.
Effect of Microstructure on the Deformation Mechanism of Friction Stir-Processed A₁₀.₁CoCrFeNi High Entropy Alloy: This article reports grain refinement using friction stir processing and a detailed study on the microstructural evolution at various locations in the processed region using scanning electron microscopy, in addition to the effect of grain refinement on the tensile properties and the underlying deformation mechanisms in both coarse-grained and fine-grained materials.
Preparation and Characterization of Injectable Brushite Filled-Poly (Methyl Methacrylate) Bone Cement: This article discusses the design of an alternative cement system that can better accommodate calcium-phosphate additives while preserving cement rheological properties and performance.
Wear and friction of composites of an epoxy with boron containing wastes: Article describes development of polymer composites based on epoxy resins containing up to 50 wt. % of boron wastes and determined their pin-on-disk dynamic friction, wear, Shore D hardness and surface roughness.
Discovery via Integration of Experimentation and Modeling: Three Examples for Titanium Alloys: This article uses case studies to describe three examples of critical experiments that have been conducted in an integrated fashion with modeling activities for titanium alloys, providing valuable information in an accelerated manner.
Tribological Properties of (EN AW-AlCu4MgSi(A)) Aluminium Alloy Surface Layer After Ball Burnishing: Article presents the tribological properties of (EN AW-AlCu4MgSi(A)) aluminium alloy surface layer after ball burnishing. EN AW-AlCu4MgSi(A) aluminium alloy is widely used as a structural material in aerospace and automotive applications. The authors have subjected it to grinding, polishing and ball burnishing. The authors have performed ball-on-disk tribological tests. We have also determined normalized 3D roughness parameters. High surface smoothness turns out to be obtainable. Favorable effect of the ball burnishing on the tribological properties of the alloy are seen. Results will be presented at the International Scientific Conference BALTTRIB, 2015.
A new combinatorial approach to assess the influence of alloy composition on the oxidation behavior and concurrent oxygen-induced phase transformations for binary Ti–xCr alloys at 650 °C: Article describes an experiment in which a combinatorial approach was used to investigate systematically the influence of composition and time on the oxidation of Ti–Cr system.
Carbon-based electrocatalysts for advanced energy conversion and storage: This article presents a critical review on the recent advances in carbon-based metal-free catalysts for fuel cells and metal-air batteries, and discusses the perspectives and challenges in this rapidly developing field of practical significance.
Rationally designed graphene-nanotube 3D architectures with a seamless nodal junction for efficient energy conversion and storage: This article discusses the development of a strategy of creating 3D graphene-carbon nanotube hollow fibers with radially aligned CNTs (RACNTs) seamless sheathed by a cylindrical graphene layer through a one-step chemical vapor deposition using an anodized aluminum wire template.
Waste Materials from Tetra Pak Packages as Reinforcement of Polymer Concrete: This article discusses how compressive and flexural strength and modulus of elasticity decrease gradually, when either Tetra Pak particle concentration or particle size is increased.
Revisiting (Some of) the Lasting Impacts of the Liberty Ships via a Metallurgical Analysis of Rivets from the SS "John W. Brown": This article examines a rivet from the SS "John W. Brown", which was assembled in Baltimore, Maryland, and launched in September 1942. Classical metallurgical analysis of a rivet from the original 1942 vessel is compared with modern rivets used during its restoration.
Surface Integrity Achieved by Finishing Processes on Sverker 21 and Vanadis 6 Cold Working Tool Steels: Article discusses the effects of various processes on the surface integrity of Sverker 21 and Vanadis 6 steel surfaces.
Robust self-cleaning and micromanipulation capabilities of gecko spatulae and their bio-mimics: This article reports a unique self-cleaning mechanism possessed by the nano-pads of gecko spatulae.
Atomic Distribution in Catalytic Amorphus Metals: This article investigates the atomic distribution in catalytically active metallic glass alloys using three-dimensional atom probe microscopy.
Physical and Mechanical Properties of Polymer Composites with High Content of Wastes Including Boron: Article describes study examining the physical and mechanical properties of polymer composite with wastes that incorporate boron.
Centimeter Scale Patterned Growth of Vertically Stacked Few Layer Only 2D MoS₂/WS₂ van der Waals Heterostructure: This article reports the chemical vapor deposition (CVD) growth of large-area (>2 cm²) patterned 2D vdW heterostructures composed of few layer, vertically-stacked molybdenum disulfide and tungsten disulfide.
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.
Laser-Assisted Machining (LAM) of Hard Tissues and Bones: Patent relating to a system and methods of machining hard tissues, such as bone.
Oxidation behavior and microstructural decomposition of Ti-6Al-4V and Ti-6Al-4V-1B sheet: This article conducts a direct comparison between the oxidation behavior of Ti-6Al-4V and Ti-6Al-4V + 1B to elucidate whether the addition of boron to Ti-^Al-4V impacts the oxidation behavior.
Uv-Induced Modification of Fused Silica: Insights From ReaxFF-Based Molecular Dynamics Simulations: This article discusses molecular dynamics simulations performed to present evidence that silica structure in both short and medium ranges is directly modified by UV-induced defects.
Hybrid Boron Nitride-Natural Fiber Composites for Enhanced Thermal Conductivity: This article finds that the synergy of natural fiber with hexagonal boron nitride (hBN) could significantly improve thermal conductivity, compared with that solely using hBN.
Three-Dimensional Carbon Nanostructures for Advanced Lithium-Ion Batteries: This review contains the authors' recent progress on the design and fabrication of 3D carbon nanostructures, their performance in Li-ion batteries (LIBs), and their implementation into large-scale, lightweight, and flexible LIBs.
Recent Development of Two-Dimensional Transition Metal Dichalcogenides and Their Applications: This article reviews the recent progress in 2D materials beyond graphene and includes mainly transition metal dichalcogenides.

UNT College of Engineering - 255 Matching Results

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