Advanced Materials & Manufacturing – Page 390

Preparation and Characterization of Polyimide-Cobalt Ferrite Nanocomposite

Mazuera D., Cedeño Y., Perales-Perez O., Singh S.P., University of Puerto Rico-Mayagüez, PR

Synthesized 20 nm cobalt ferrite single crystals, which exhibited a coercivity of 2.9kOe at room-temperature, were dispersed in precursor polyamic acid at different volume fractions and cured at 300oC to develop the polyimide matrix. Polyamic [...]

Nickel ferrite Nanomaterials by Pulsed laser ablation in Water; Structural, Optical and Magnetic Characterizations

Gopal R., Singh S.C., Swarnkar R.K., Allahabad University, IN

Nickel ferrite nanoparticles are synthesized by pulsed laser ablation of corresponding bulk target in the double distilled water. Focused output of fundamental and third harmonics from pulsed Nd:YAG laser operating at 40 and 25 mJ/pulse [...]

Quantum Dot (QD) gate Si-FET with Self Assembled GeOX Cladded Germanium Quantum Dots

Gogna M., AlAmoody F., Karmakar S., Papadimitrakopoulos F., Jain F., University of Connecticut, US

This paper presents preliminary data on the transfer and output characteristics of a GeOXcladded Ge quantum dot (QD) gate Si MOSFET. The MOSFET is formed by depositing cladded QDs above the SiO2 gate insulator formed [...]

Exposure modeling of engineered nanoparticle

Som C., Mueller N.C., Sonderer T., Gottschalk F., Scholz R., Nowack B., Empa Materials Science and Technology, CH

An elementary step towards a quantitative assessment of the risks of new compounds to the environment is to calculate their predicted environmental concentrations (PEC). The aim of this study was to use a life-cycle perspective [...]

Preparation, Characterisation and Electrical Conductivity studies of

Nallamuthu N., Prakash I., Venkateswarlu M., Satyanarayana N., Pondicherry University, IN

Oxide ion conducting materials are attracting more due to their application in various fields like solid oxide fuel cells, oxygen sensors, oxygen pumps, etc. Doped Scheelite type materials are one of the better oxide ion [...]

Silica-coated Ag nanoparticles by scalable flame technology

Sotiriou G.A., Camenzind A., Pratsinis S.E., ETH Zürich, CH

Silica coated silver nanoparticles have been synthesized in one step, by using flame spray pyrolysis. By controlling the production parameters, different sizes and different coating thicknesses were achieved. The particles were characterized with TEM/STEM, EDX [...]

Application of Magnetite nanoparticles (Fe3O4) as an optimizing agent for Bradyrhizobium japanicum Growing Rate (BGR)

Ghalamboran M.R., Ramsden J.J., Cranfield University, UK

The aim of this study was to investigate, whether magnetic nanoparticles effect increasing of Bradyrhizobium Growing Rate in liquid media, and so alters sensitivity to high pH and survival.Finally results showed that using of the [...]

Synthesis of monodispersed MFe2O4 (M=Fe, Co, Ni) ferrite nanoparticles: effect of reaction temperature on particle size

Altavilla C., Leone C., Sannino D., Sarno M., Ciambelli P., University of Salerno, IT

The possibility of preparing monodispersed transition metal-oxides nanoparticles covered by functionalized long chain organic molecules, in the sub size range of 20 nm, has recently open an entire field of research. In fact, inorganic core [...]

Current Development Studies of a Single-Walled Carbon Nanotube Reference Material At National Institute of Standards and Technology (NIST)

Spatz R.O., Zeisler R., Paul R.L., National Institute of Standards and Technology, US

Carbon nanotubes are promising candidates for numerous applications because of very unique nanostructures and possess remarkable mechanical and electronic properties. For this reason there is an urgent need for standards for carbon nanotube (CNT) manufacturers, [...]

The Morphology and Evolution of Zinc Oxide Flowers Like by Direct Synthesis and Sequential Nucleation Growth

Elizondo N., Obregon R., Perez E., University of North Texas, US

The morphology evolution characteristics of ZnO nanostructures were systematically studied from dense rods to ZnO flowers like. The ZnO flowers like were prepared by direct decomposition of a Zn(OH)42– precursor. Zinc oxide with a diversity [...]