Papers – Page 24 – TechConnect Briefs

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 [...]

Impact of Colloidal Stability on Cellulose Nanocrystals Self-Ordering in Thin Films

Bruel C., Tavares J.R., Carreau P.J., Heuzey M.-C., polytechnique montreal, CA

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 [...]

Multiscale Simulation of Unidirectional Carbon Fiber Reinforced Polymer Strength

Cornwell H, Lima L, Souza F, MultiMechanics, US

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 [...]

A Review of the Current Industrial Methods of Selecting Interfacial Coupling Agents to Enhance the Mechanical Performance of Short Fibre-Polymer Composites

Hayward M., Johnston J., Dougherty T., de Silva K., Victoria University of Wellington, NZ

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 [...]

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, [...]

Nonlinear optical nanocomposite : Electrospun PVA nanofibers embedded with PCBS.

Samir E., Kandas I., Shehata N., Mahmoud A.K., Kuwait College of Science and Technology (KCST),, KW

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 [...]

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 [...]

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 [...]

Ultrasonic Pulsed Doppler, a Novel Method for Nanoparticle Characterization

Africk S., Prodyne Corp., US

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 [...]

Using Nanoparticle Scaffolds to Probe and Enhance the Catalytic Activity of Single and Coupled Enzyme Systems

Hastman D., Chiriboga M., Medintz I., U.S. Naval Research Laboratory, US

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 [...]