Materials Literature
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The sonoluminescence generated in water with pulsed 515 kHz ultrasound has been studied in the presence of different chain length (C 1 −C 5 ) aliphatic alcohols and the surfactants sodium dodecyl sulfate (SDS), dodecyltrimethylammonium chloride (DTAC), and N -dodecyl- N, N -dimethyl-3-ammonio-1-propanesulfonate (DAPS)…
Titanium dioxide, a large-bandgap semiconductor and versatile photocatalyst, has been grafted onto the pore surface of MCM-41 and FSM-16 (a mesoporous material derived from kanemite) by reacting TiCl 4 in hexanes with the as-synthesized mesostructured silicate. The products have been extensively characterized by powde…
ADVERTISEMENT RETURN TO ISSUEPREVCommunicationNEXTRemarkable Stabilization of Self-Assembled Organogels by PolymerizationMaaike de Loos, Jan van Esch, Iets Stokroos, Richard M. Kellogg, and Ben L. FeringaView Author Information Department of Organic and Molecular Inorganic Chemistry, University of Groningen Nijenborgh…
RATIONALE AND OBJECTIVES: The authors assess the effect of weak protein binding on the efficacy of gadolinium chelates as contrast agents for magnetic resonance imaging (MRI). METHODS: Chelates with no (gadopentetate dimeglumine), weak (gadobenate dimeglumine), and strong (B-21326/7) protein binding were compared by i…
Stable ``T junctions'' of single-walled carbon nanotubes forming one of the smallest prototypes of microscopic metal-semiconductor-metal contacts are proposed. The structures have been found to be local minima of the total energy on relaxation with a generalized tight-binding molecular dynamics scheme. These quasi-2D…
We will try to give a idea about the possibilities of the Composites Materials in the Construction area, examining their applications since along time. We will begin by the integral closing the building, based in the panel sandwich concept. Immediately we will comment a new material, the COMPOSTEEL, a hybrid product m…
Grid structures have been in use for decades. Many were made of reinforced concrete or metals. Grids made of composite materials offer high stiffness and strength at low mass that are competitive with traditional composite laminates. Commonly available manufacturing processes such as filament winding, pultrusion and t…
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In a composite material that uses fibers as reinforcement, the breakage of the matrix is produced jointly with the separation of the fiber from the matrix. The mechanical behavior of the interface describes how fibers can work stabilizing the cracking process. The interface is the medium that puts the fiber on load, b…
Restoration, strengthening and rehabilitation of buildings becomes one of the more interesting aspects of the use of composites. Construction industry has not yet accepted the wide structural use of these new materials because it does not know the advantages of composites in comparison with traditional materials, such…