metal – TechConnect Briefs

Design and Manufacture of a Functional 3D-Printed Stirling Engine: A Case Study Involving Bound Metal Deposition of 17-4 PH

Campbell Q., Filiault M., Rooney K., Belding J., Ellis B.D., University of Maine, US

Bound metal deposition (BMD) is a recently commercialized additive manufacturing of metal (AMM) process in which metal powder-binder composites are printed, debound, and sintered. Although potentially offering significant costs savings compared to traditional AMM process, [...]

Nanoscale Silver Coatings on Synthetic Fibers

Amberg M., Körner E., Hegemann D., Heuberger M., Empa, Swiss Federal Laboratories for Materials Testing and Research, CH

In this work, we present two different low-pressure plasma processes that are used to obtain nanoscale coatings on the special geometry of fibers. A 100-200nm thick smooth silver coating is produced and its electromechanical as [...]

Use of different natural Extracts from Tropical plants as Green Inhibitors for Metals

Bogaerts W., Vuthi T., Phong P.H., Hanh P.H., Linh D.C., Addul R., University of Leuven, BE

The authors present an overview of the work & results obtained in the framework of a bilateral cooperation program between Belgium and Vietnam to discover new environmentally-friendly corrosion inhibitors or ‘harmless corrosion inhibitors to nature” [...]

Use of different natural Extracts from Tropical plants as Green Inhibitors for Metals

Bogaerts W., Vuthi T., Phong P.H., Hanh P.H., Linh D.C., Addul R., University of Leuven, BE

The authors present an overview of the work & results obtained in the framework of a bilateral cooperation program between Belgium and Vietnam to discover new environmentally-friendly corrosion inhibitors or ‘harmless corrosion inhibitors to nature” [...]

Structural Stability of Hydrogen Storage Materials

Katagiri M., Onodera H., Ogawa H., National Institute for Materials Science, JP

Elastic instability by hydrogenation and hydrogen diffusion are studied by molecular dynamics method. The bulk modulus instability causes the anorphization by hydrogenation. The atomic relaxation reduces the pressure fluctuation terms i n the elastic constant, [...]

A SERS substrate for detection of E.Coli on Nanostructured Poly(p-xylylene)

Kao P., Malvadkar N.A., Wang H., Allara D.L., Demirel M.C., Penn State University, US

Surface enhanced Raman (SERS) has an advantage of minimal sample preparation, low reagent costs and ease of operation in addition to more rapid and reliable biosensing technique when compared to other methods. Several methods have [...]

Fabrication of Metal Oxide Coaxial Nanotubes using Atomic Layer Deposition

Jeong D-K, Oh T-K, Shin H-J, Jung W.-G., Lee J-G, Sung M-M, Kim J-Y, Kookmin University, KR

We fabricated of nanotubular structures of TiO2 and ZrO2 using the gas-phase fabrication method atomic layer deposition (ALD) with nanoporous structure of polycarbonate (PC) templates. Contact printed alkylsiloxane monolayers on both sides of PCs were [...]

Gold Removal and Recovery using Mesoporous Silica Adsorbents

Lam K.F., Yeung K.L., McKay G., Hong Kong University of Science and Technology, CN

This work investigates the selective removal of dissolved metal ions from aqueous solutions using MCM-41 adsorbents grafted with different chemical moieties. A systematic study was conducted to understand the adsorption mechanisms, in order to better [...]

Synthesis and Properties of Magnetic Nanoparticles with Potential Applications in Cancer Diagnostic

Neamtu J., Jitaru I., Malaeru T., Georgescu G., Kappel W., Alecu V.-V., National Institute for Research, RO

The size, shape and composition of magnetic nanoparticles are very attractive for diagnostic tools of cancer tumors and targeting treatment in HIV infection. The goal of this paper is the preparation from colloidal solutions of [...]

Monte Carlo Modeling of Thin Film Deposition: Influence of Grain Boundaries on the Porosity of Barrier Layer Films

Dalla Torre J., Gilmer G.H., Windt D.L., Baumann F.H., Huang H., Díaz de la Rubia T., Djafari-Rouhani M., Bell Labs, Lucent Technologies, US

We present Monte Carlo simulations of metallic thin films grown by sputter deposition from an infinite target. The Monte Carlo model includes ballistic deposition from the target, surface diffusion, and polycrystalline film growth. We study [...]