Papers:
Characterization of Magnesium Silicide Stannide Powder for use in Selective Laser Melting
This study examines magnesium silicide stannide (Mg2Si0.4Sn0.6) powder, a thermoelectric material optimal for high temperature applications. Powder morphology and particle size distribution were analyzed through optical microscopy and the image analysis software FIJI. The ability [...]
Curvature Change Analysis of SMART Fibers used for Temperature Adaptive Insulation
A thermally adaptive insulation has previously been developed by the US Army. The insulation is designed to expand at lower temperatures and shrink at higher temperatures. This is accomplished using multi-component polymer fibers that are [...]
Determining Elastic-Plastic Material Properties Using Instrumented Indentation Test and Finite Element Simulation
A new technique that can determine the elastic-plastic properties of metallic materials using the instrumented indentation test and finite element simulation is developed. This non-destructive technique can be applied to additively manufactured and/or surface treated [...]
A Programmable Transmission Electron Detector for Nanomaterials Characterization in a Scanning Electron Microscope
A new programmable detector for scanning transmission electron microscopy (p-STEM) is described. A digital micromirror array lies at the heart of the detector and serves as a programmable virtual objective aperture. Two sensors, a photomultiplier [...]
Microscopic Identification of Micro-Fractures and Deterioration In Arid Environments Of Pro-Oxidant Polyethylene (PE) Specimens Utilizing State of The Art Thermal and Morphological Experimental Protocols
Al-Salem S.M., Al-Hazza A.A., Al-Rowaih A.A., Al-Dhafeeri A.T., Kuwait Institute for Scientific Research, KW
Pro-oxidant filled polyethylene (PE) specimens in standard and internationally accepted dimensions and size, were exposed to arid natural and accelerated weathering conditions. The American Society for Testing and Materials (ASTM) protocols for weathering were followed, [...]
Sustainable and Versatile Functionalization of Graphene Layers
Graphene layers were functionalized by using a sustainable, versatile, easily scalable method. Functionalizing agents were prepared through the reaction of a dicarbonyl compound with a variety of primary amines and were mixed and heated in [...]
Using Nanoparticle Scaffolds to Probe and Enhance the Catalytic Activity of Single and Coupled Enzyme Systems
The use of nanoparticle (NP) scaffolds for enzymatic systems has proven to be a useful tool for sensing specific enzyme activity as well as enhancing the catalytic rates of these systems. Although, NP-induced enhancement has [...]
Ultrasonic Pulsed Doppler, a Novel Method for Nanoparticle Characterization
USPD is a unique ultrasonic backscatter technology for the characterization of nanoparticles. Particles are interrogated in motion and the backscattered energy is received at Doppler-shifted frequencies, allowing clutter-free detection of backscatter from particles in the [...]
Evaporation of Gold Nanofluid Sessile Drops on Heated Substrate
Zaaroura I., Harmand S., Carlier J., Boukherroub R., Université Polytechnique Hauts-de-France (UPHF), FR
In this paper, experiments investigating the evaporation of gold nanofluid droplets to evaluate the effect of the particle size (5 and 10 nm) and concentrations (1 and 4% Cv), were executed on a hydrophobic silicon [...]
Electroless Technology for Production of Cobalt Magnetic and Photocatalytic Nanopowders and Nanowires
Gavasheli T., Mamniashvili G., Nadareishvili M., Zedginidze T., Ivane Javakhishvili Tbilisi State University, GE
In this work cobalt nanopowders and nanowires,as well TiO2 micro- and nanopowders coated by Co nanoclusters have been prepared by the original electroless deposition method. The magnetism of Co nanoclusters in nanopowders and nanowires and [...]
Nonlinear optical nanocomposite : Electrospun PVA nanofibers embedded with PCBS.
This work presents a new electrospun nanocomposite of PVA nanofibers with embedded nonlinear optical nanostructure of poly {1-[p-(3’-carboxy-4’-hydroxyphenylazo) benzenesulfonamido]-1, 2-ethandiyl} (PCBS). PVA polymer has been synthesized and converted into nanofibers via electrospinning process. Moreover, PCBS [...]
Functionalized Boron Nitride Nanotubes and their Polymer Nanocomposites
Guan J., Derdouri A., Ashrafi B., Benhalima A., Kim K.S., Kingston C.T., Simard B., National Research Council Canada, CA
Carbon nanotubes (CNTs) integrated polymer nanocomposites demonstrated promising trends to replace traditional metal materials for lightweighting applications. Similarly, boron nitride nanotubes (BNNTs), which are structurally analogous to CNTs, possess complimentary properties, including the optical transparency, [...]
A Review of the Current Industrial Methods of Selecting Interfacial Coupling Agents to Enhance the Mechanical Performance of Short Fibre-Polymer Composites
Coupling agents are used in fibre-polymer composites to enhance the dispersion and adhesion of the fibres and to maximise the composite’s mechanical performance. This paper aims to review the existing approaches of selecting a coupling [...]
Multiscale Simulation of Unidirectional Carbon Fiber Reinforced Polymer Strength
Finite element (FE) analysis has become increasingly important for mechanical design and the development of new advanced materials. Being able to predict structural performance accurately and efficiently can circumvent the extensive time and cost of [...]
Impact of Colloidal Stability on Cellulose Nanocrystals Self-Ordering in Thin Films
Sulfuric acid hydrolyzed cellulose nanocrystals (CNC) display interesting self-ordering properties in water. Applications include water casting of optically active CNC- based materials and composites. N,N-dimethylformamide (DMF)-cast materials do not display as good properties. Variations in [...]
Spin-Dependent Scattering of Electron Wave on Multi-Barrier Non Collinear System
Sahakyan A.S., Poghosyan A.V., Movsesyan R.M., Kocharian A.N., California State University Los Angeles, US
Spin-dependent scattering of electron wave on multi-barrier noncollinear system aA.S. Sahakyan, aA.V. Poghosyan, a R.M. Movsesyan, bA.N. Kocharian a National Polytechnic University of Armenia, Yerevan, Armenia bDepartment of Physics, California State University, Los Angeles, USA [...]
Novel Post Treatment of Nano-Particle Reinforced Metallic Coatings
Electrochemical co-deposition of metallic coatings with a second phase material have been widely applied in industry to improve the properties of coatings. A variety of hard oxide, carbide, nitride, and ceramic nanoparticles have been successfully [...]
Solution Grown Nanostructured Ceramic Coatings for Photocatalytic and Antibacterial Surface
Ceramics coatings have received great attention for use as a functional surface, as well as a protective and barrier coating. We report a low-temperature hydrothermal processing of nanostructured ceramic coatings that enable their surface to [...]
AWI High Performance Powder Coating TrioGuard
Many business segments such as transportation, healthcare, office, and building interior need the product surface not to accumulate the dirt / dust and the product performance longevity to provide end users with better working, living [...]
Analysis of Water Resistance and Mechanical Performance of Microporous Polyurethane Membrane Laminated Waterproof Breathable Fabrics
Composite waterproof breathable textile fabric made with membrane must be characterized by better water resistance and simultaneously good possible permeability of water vapour in order to use as protective clothing or sportswear. This paper describes [...]
Determining the Quality of Asphalt Emulsions by Size and Zeta Potential
Asphalt binder emulsions have proven to be an environmentally friendly, energy efficient, and cost-effective alternative to hot asphalt binder mixtures [1]. They are typically used for roadway resurfacing where they are employed as an adhesive [...]
Accelerated Neutral Atom Beam (ANAB) Technology for Nanoscale Surface Processing
We use Accelerated Neutral Atom Beam (ANAB) technology to impart beneficial functionality on metal, ceramic, glass, and polymer surfaces without detrimental impacts of traditional plasma and ion beam technologies. ANAB provides an intense, collimated beam [...]
Defect Engineered Single-Layer MoS2 Dendrites as an Efficient Electrocatalyst for Hydrogen Evolution Reaction
Dendritic structures display a high density of edge sites, which are electrocatalytically active in hydrogen evolution reaction (HER). However, given that the basal plane of 2H- phase MoS2 synthesized by chemical vapor deposition (CVD) is [...]
A study of the interaction between nanoparticles and light: an experimental proof and visualisation of Mie theory in polymer composites
An experimental proof of Mie theory has been developed using gold nanoparticles. The relationship between nanoparticle size and the ratio of scattering to absorption has been investigated, and nanoparticle – polymer composites have further been [...]
Journal: TechConnect Briefs
Volume: TechConnect Briefs 2019
Published: June 17, 2019
Industry sector: Advanced Materials & Manufacturing
Topics: Advanced Materials for Engineering Applications, Materials Characterization & Imaging
ISBN: 978-0-9988782-8-7