19 Matching Results

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Polydimethylsiloxane and polyisoprene-based graphene composites for strain-sensing (open access)

Polydimethylsiloxane and polyisoprene-based graphene composites for strain-sensing

In this article, different composite materials have been developed and characterized for different applications in the health science field and as optoelectromechanical sensors.
Date: March 31, 2017
Creator: Catalan Gonzalez, Jorge Alfredo & Kaul, Anupama
System: The UNT Digital Library
Investigation of structural morphology and electrical properties of graphene-C₆₀ hybrids (open access)

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
System: The UNT Digital Library
Inkjet printing of liquid-exfoliated, highly conducting graphene/poly(3,4 ethylenedioxythiophene):poly(styrenesulfonate) nanosheets for organic electronics (open access)

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
System: The UNT Digital Library
Biocompatible, large-format, inkjet printed heterostructure molybdenum disulfide-graphene photodetectors on conformable substrates (open access)

Biocompatible, large-format, inkjet printed heterostructure molybdenum disulfide-graphene photodetectors on conformable substrates

This article describes an inkjet printed, biocompatible, heterostructure photodetector that was constructed using inks of photo-active molybdenum disulfide (MoS2) and electrically conducting graphene which facilitated charge collection of the photocarriers. The importance of such devices stems from their potential utility in age-related-macular degeneration, which is a condition where the photosensitive retinal tissue degrades with aging, eventually compromising vision. The absence of effective therapeutic remedies for patients with this disorder has motivated the development of such devices to restore some degree of visual function.
Date: September 7, 2017
Creator: Hossain, Ridwan F.; Deaguero, Isaac G.; Boland, Thomas & Kaul, Anupama
System: The UNT Digital Library
Exceptional increase in the creep life of magnesium rare-earth alloys due to localized bond stiffening (open access)

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.
System: The UNT Digital Library
Synthesis of uniform single layer tungsten disulfides for tunable photoluminescence (open access)

Synthesis of uniform single layer tungsten disulfides for tunable photoluminescence

This article explores single-layer tungsten disulfides (WS₂) because of their unique tunable bandgap. The authors report the scalable synthesis of uniform single-layer WS2 film by a two-step chemical vapor deposition (CVD) method followed by a laser thinning process.
Date: November 23, 2017
Creator: Park, Juhong; Kim, Min Su; Cha, Eunho; Kim, Jeongyong & Choi, Wonbong
System: The UNT Digital Library
Strengthening strategy for a ductile metastable β-titanium alloy using low-temperature aging (open access)

Strengthening strategy for a ductile metastable β-titanium alloy using low-temperature aging

This article demonstrates that low-temperature aging (LTA) treatments for short time periods can in fact enhance the yield strength while preserving substantial elongation-to-failure in ω containing β titanium alloys.
Date: July 13, 2017
Creator: Sun, F.; Zhang, J.Y.; Vermaut, P.; Choudhuri, Deep; Alam, Talukder; Mantri, Srinivas Aditya et al.
System: The UNT Digital Library
Additive Manufacturing of Metals: A Brief Review of the Characteristic Microstructures and Properties of Steels, Ti-6al-4v and High-Entropy Alloys (open access)

Additive Manufacturing of Metals: A Brief Review of the Characteristic Microstructures and Properties of Steels, Ti-6al-4v and High-Entropy Alloys

This article presents a brief review of the microstructures and mechanical properties of selected metallic alloys processed by additive manufacturing (AM).
Date: March 30, 2017
Creator: Gorsse, Stéphane; Hutchinson, Christopher; Gouné, Mohamed & Banerjee, Rajarshi
System: The UNT Digital Library
Enhanced Strength and Ductility in a Friction Stir Processing Engineered Dual Phase High Entropy Alloy (open access)

Enhanced Strength and Ductility in a Friction Stir Processing Engineered Dual Phase High Entropy Alloy

This article presents a strong and ductile non-equiatomic high-entropy alloy obtained after friction stir processing.
Date: October 19, 2017
Creator: Nene, Saurabh S.; Liu, Kaimiao; Frank, Michael; Mishra, Rajiv; Brennan, R. E.; Cho, K. C. et al.
System: The UNT Digital Library
Effect of Ni-Content on the Transformation Temperatures in NiTi-20 at. % Zr High Temperature Shape Memory Alloys (open access)

Effect of Ni-Content on the Transformation Temperatures in NiTi-20 at. % Zr High Temperature Shape Memory Alloys

This article investigates the effect of Ni-content on phase transformation behavior of NiTi-20 at. % Zr high temperature shape memory alloy.
Date: October 18, 2017
Creator: Carl, Matthew; Smith, Jesse D.; Van Doren, Brian & Young, Marcus L.
System: The UNT Digital Library
Rapid Synthesis of Nanoporous Conformal Coatings via Plasma-Enhanced Sequential Infiltration of a Polymer Template (open access)

Rapid Synthesis of Nanoporous Conformal Coatings via Plasma-Enhanced Sequential Infiltration of a Polymer Template

This article reports a plasma-enhanced sequential infiltration synthesis (PE SIS) as a new platform toward deposition of nanoporous inorganic films.
Date: September 5, 2017
Creator: She, Yunlong; Lee, Jihyung; Diroll, Benjamin T.; Lee, Byeongdu; Aouadi, Samir; Shevchenko, Elena V. et al.
System: The UNT Digital Library
Molecular Dynamic Simulation of Nanocrystal Formation and Tensile Deformation of TiAl Alloy (open access)

Molecular Dynamic Simulation of Nanocrystal Formation and Tensile Deformation of TiAl Alloy

This article provides fundamental understanding of the nanocrystalline formation of undercooling TiAl melt and the deformation mechanisms in the nanocrystalline TiAl at the atomic scale.
Date: September 8, 2017
Creator: Li, Peng-tao; Yang, Yanqing; Xia, Zhenhai; Luo, Xian; Jin, Na; Gao, Yong et al.
System: The UNT Digital Library
Enhancing elevated temperature strength of copper containing aluminum alloys by forming L1₂ Al₃Zr precipitates and nucleating θ" precipitates on them (open access)

Enhancing elevated temperature strength of copper containing aluminum alloys by forming L1₂ Al₃Zr precipitates and nucleating θ" precipitates on them

This article presents a new approach in designing an Al-based alloy through solid state precipitation route.
Date: March 16, 2017
Creator: Makineni, S. K.; Sugathan, Sandeep; Meher, Subhashish; Kumar, Subodh & Chattopadhyay, K.
System: The UNT Digital Library
Atomic Simulations of Twist Grain Boundary Structures and Deofrmation Behaviors in Aluminum (open access)

Atomic Simulations of Twist Grain Boundary Structures and Deofrmation Behaviors in Aluminum

This article investigates twist grain boundaries with molecular dynamic simulations to reveal their atomic structures, energy and interactions with dislocations.
Date: January 30, 2017
Creator: Yin, Qing; Wang, Zhiqiang; Mishra, Rajiv & Xia, Zhenhai
System: The UNT Digital Library
Effect of Cr Addition on γ-γ' Cobalt-Based Co-Mo-Al-Ta Class of Superalloys: A Combined Experimental and Computational Study (open access)

Effect of Cr Addition on γ-γ' Cobalt-Based Co-Mo-Al-Ta Class of Superalloys: A Combined Experimental and Computational Study

This article deals with effect of Cr addition (10 at.%) on the partitioning behavior and the consequent effect on mechanical properties for tungsten-free γ-γ' cobalt-based superalloys with base alloy compositions of Co–30Ni–10Al–5Mo–2Ta (2Ta) and Co–30Ni–10Al–5Mo–2Ta–2Ti (2Ta2Ti).
Date: June 12, 2017
Creator: Nithin, B.; Samanta, A.; Makineni, S. K.; Alam, Talukder; Pandey, P.; Singh, Abhishek K. et al.
System: The UNT Digital Library
Recent Development of Two-Dimensional Transition Metal Dichalcogenides and Their Applications (open access)

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.
Date: January 9, 2017
Creator: Choi, Wonbong; Choudhary, Nitin; Han, Gang Hee; Park, Juhong; Akinwande, Deji & Lee, Young Hee
System: The UNT Digital Library
Improvement of Scratch and Wear Resistance of Polymers by Fillers Including Nanofillers (open access)

Improvement of Scratch and Wear Resistance of Polymers by Fillers Including Nanofillers

This article reviews approaches for improvement of tribological properties of polymers based on inclusion of fillers.
Date: March 16, 2017
Creator: Brostow, Witold, 1934-; Hagg Lobland, Haley E.; Hnatchuk, Nathalie & Pérez, José M.
System: The UNT Digital Library
Scanning Tunneling Microscopy Observation of Phonon Condensate (open access)

Scanning Tunneling Microscopy Observation of Phonon Condensate

This article discusses results showing that the effective radius of these phonon quasi-bound states, the real-space distribution of phonon standing wave amplitudes, the scattering phase shifts, and the nonlinear intermode coupling strongly depend on the presence of defect-induced scattering resonance.
Date: February 22, 2017
Creator: Altfeder, Igor; Voevodin, Andrey A.; Check, Michael H.; Eichfeld, Sarah M.; Robinson, Joshua A. & Balatsky, Alexander V.
System: The UNT Digital Library
Interfacial Structures and Energetics of the Strengthening Precipitate Phase in Creep-Resistant Mg-Nd-Based Alloys (open access)

Interfacial Structures and Energetics of the Strengthening Precipitate Phase in Creep-Resistant Mg-Nd-Based Alloys

This article discusses the study of two interfaces– {112}β1/{1100}Mg and {111}β1/{1120}Mg– that are commensurate with β1/hcp-Mg orientation relationship via first principles calculations.
Date: January 17, 2017
Creator: Choudhuri, Deep; Banerjee, Rajarshi & Srivilliputhur, Srinivasan
System: The UNT Digital Library